Journal articles: 'Nanostructured hybrid material'

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Koufos, Evan, and Meenakshi Dutt. "Designing Nanostructured Hybrid Inorganic-biological Materials via the Self-assembly." MRS Proceedings 1569 (2013): 51–56. http://dx.doi.org/10.1557/opl.2013.764.

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ABSTRACTOur objective is to design nanostructured hybrid inorganic-biological materials using the selfassembly of functionalized nanotubes and lipid molecules. In this presentation, we summarize the multiple control parameters which direct the equilibrium morphology of a specific class of nanostructured biomaterials. Individual lipid molecules are composed of a hydrophilic head group and two hydrophobic tails. A bare nanotube encompasses an ABA architecture, with a hydrophobic shaft (B) and two hydrophilic ends (A). We introduce hydrophilic hairs at one end of the tube to enable selective transport through the channel. The dimensions of the nanotube are set to minimize its hydrophobic mismatch with the lipid bilayer. We use a Molecular Dynamicsbased mesoscopic simulation technique called Dissipative Particle Dynamics which simultaneously resolves the structure and dynamics of the nanoscopic building blocks and the hybrid aggregate. The amphiphilic lipids and functionalized nanotubes self-assemble into a stable hybrid vesicle or a bicelle in the presence of a hydrophilic solvent. We demonstrate that the morphology of the hybrid structures is directed by factors such as the temperature, the molecular rigidity of the lipid molecules, and the concentration of the nanotubes. We present material characterization of the equilibrium morphology of the various hybrid nanostructures. A combination of the material characterization and the morphologies of the hybrid aggregates can be used to predict the structure and properties of other hybrid materials.

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Aversa, Raffaella, Roberto Sorrentino, and Antonio Apicella. "New Biomimetic Hybrid Nanocomposites for early Fixation Prostheses." Advanced Materials Research 1088 (February 2015): 487–94. http://dx.doi.org/10.4028/www.scientific.net/amr.1088.487.

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The research develops and tests new hybrid biomimetic materials that work as mechanically stimulating "scaffolds" to promote early regeneration in implanted bone healing phases. A biomimetic nanostructured osteoconductive material coated apparatus is presented. Bioinspired approaches to materials and templated growth of hybrid networks using self-assembled hybrid organic-inorganic interfaces is finalized to extend the use of hybrids in the medical field. Combined in vivo, in vitro and computer aided simulations have been carried out. A new experimental methodology for the identification of design criteria for new innovative prosthetic implant systems is presented. The new implant design minimizes the invasiveness of treatments while improving implant functional integration. A new bioactive ceramo-polymeric hybrid material was used to modify odontostomatological Titanium implants in order to promote early fixation, biomechanical stimulation for improved scaffold mineralization and ossification. It is a hybrid ceramo-polymeric nanocomposites based on Hydroxyl-Ethyl-Methacrylate polymer (pHEMA) filled with nanosilica particles that have shown biomimetic characteristics. This material swells in presence of aqueous physiological solution leading to the achievement of two biomechanical functions: prosthesis early fixation after and bone growth stimulation. Such multidisciplinary approach explores novel ideas in modelling, design and fabrication of new nanostructured biomaterials with enhanced functionality and improved interaction with OB cells

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Katayama, Mitsuhiro, Shin-ichi Honda, Takashi Ikuno, Kuei-Yi Lee, Masaru Kishida, Yuya Murata, and Kenjiro Oura. "Synthesis of Nanostructured Hybrid between Carbon Nanotube and Inorganic Material towards Nanodevice Application." e-Journal of Surface Science and Nanotechnology 2 (2004): 244–55. http://dx.doi.org/10.1380/ejssnt.2004.244.

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Zhu, Shaoli, and Wei Zhou. "Topical Review: Design, Fabrication, and Applications of Hybrid Nanostructured Array." Journal of Nanomaterials 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/206069.

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Nanohybrid materials have been widely used in the material chemistry research areas. In this paper, we mainly discussed the hybrid nanostructures used for nanobiosensor applications. It is one of the most promising and rapidly emerging research areas in nanotechnology field. Design, fabrication, and applications of hybrid nanostructures are reviewed, respectively. Finite difference time domain (FDTD) methods are applied to design different materials of hybrid nanostructures. Nanosphere lithography (NSL) is used to fabricate our designed hybrid nanostructures. Moreover, protein A and staphylococcal enterotoixn B (SEB), an enterotoxin, are detected by our designed hybrid nanostructures. From all the experiment results, we can see that our designed hybrid nanostructures are one of important nanohybrid materials. They have many potential applications in the nanobiosensor in the future.

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Mahmood, Khalid, Bhabani S. Swain, Ahmad R. Kirmani, and Aram Amassian. "Highly efficient perovskite solar cells based on a nanostructured WO3–TiO2core–shell electron transporting material." Journal of Materials Chemistry A 3, no. 17 (2015): 9051–57. http://dx.doi.org/10.1039/c4ta04883k.

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A novel core–shell nanostructured WO₃is investigated in detail and shown to work successfully as an electron transporting material in hybrid perovskite solar cells. A thin TiO₂shell reduces charge recombination while highly textured single-crystal WO₃nanostructures promote fast electron transport leading to an efficiency above 11%.

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Bui, Hoa, Nguyen Duc Lam, Bui Xuan Khuyen, Bui Son Tung, Man Hoai Nam, Nguyen Thi Ngoc Anh, Do Chi Linh, Duong Thi Huong, and Pham Thi San. "Synthesis and characterization of in-situ MoS2-graphene hybrid nanostructured material." Journal of Military Science and Technology, no. 81 (August 26, 2022): 122–27. http://dx.doi.org/10.54939/1859-1043.j.mst.81.2022.122-127.

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Nowadays, it has been challenging to develop novel techniques and synthesis processes for hybrid two-dimensional materials. Hence, this research presents an innovative technique for the fabrication of MoS2-Graphene (MoS2-Gr) hybrid nanostructured materials. The graphene was effectively generated in-situ and incorporated into the interlayer spacing of MoS2, which was synthesized by using a co-precipitation process with diethyl glycol as the solvent, followed by annealing the as-synthesized MoS2 at 800 oC for two hours in an inert atmosphere. The integrated graphene enhanced the width of MoS2 interlayers, exposing a substantial concentration of active edge sites in the hybrid material, according to SEM, XRD, HR-TEM, and other characterizations. This research might lead to the development of viable hybrid structured materials for various applications. In addition, this study outlines a novel advanced approach for creating hybrid 2D nanostructured materials with superior characteristics.

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Piticescu, Roxana M., Gabrielle Charlotte Chitanu, Aurelia Meghea, Maria Giurginca, Gabriela Negroiu, and Laura Madalina Popescu. "Comparative Study of In Situ Interactions between Maleic Anhydride Based Copolymers with Hydroxyl Apatite." Key Engineering Materials 361-363 (November 2007): 387–90. http://dx.doi.org/10.4028/www.scientific.net/kem.361-363.387.

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A comparative study of the in situ interactions between different maleic anhydride based copolymers and calcium phosphates is presented in this paper. The ability of functional groups of the organic polymers to form under high pressure and low temperatures chemical bonds with the inorganic phase leading to improved properties of hybrid nanostructured material is discussed. The open challenges of new hybrid nanocomposites in the field of biomedical materials are evaluated. The challenge to use these nanostructured materials in medical field was evaluated by mapping the interface reactions between hybrid active layers and cells.

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Lyuksyutov, I. F., and D. G. Naugle. "Magnet/Superconductor Nanostructures." International Journal of Modern Physics B 17, no. 18n20 (August 10, 2003): 3441–44. http://dx.doi.org/10.1142/s0217979203021162.

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In Magnet/Superconductor Nanostructures it is possible to control magnetism and conductivity at the nanoscale by using localized magnetic fields from structural (dots, stripes, wires) and topological (vortices's, skyrmions and domain walls) textures in magnet and/or superconductor subsystems of the hybrid material. We review experimental and theoretical results in the field of nanostructured magnet/superconductor systems.

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Wang, Hualan, Qingli Hao, Xujie Yang, Lude Lu, and Xin Wang. "A nanostructured graphene/polyaniline hybrid material for supercapacitors." Nanoscale 2, no. 10 (2010): 2164. http://dx.doi.org/10.1039/c0nr00224k.

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McDonald, Calum, Chengsheng Ni, Paul Maguire, Paul Connor, John Irvine, Davide Mariotti, and Vladimir Svrcek. "Nanostructured Perovskite Solar Cells." Nanomaterials 9, no. 10 (October 18, 2019): 1481. http://dx.doi.org/10.3390/nano9101481.

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Over the past decade, lead halide perovskites have emerged as one of the leading photovoltaic materials due to their long carrier lifetimes, high absorption coefficients, high tolerance to defects, and facile processing methods. With a bandgap of ~1.6 eV, lead halide perovskite solar cells have achieved power conversion efficiencies in excess of 25%. Despite this, poor material stability along with lead contamination remains a significant barrier to commercialization. Recently, low-dimensional perovskites, where at least one of the structural dimensions is measured on the nanoscale, have demonstrated significantly higher stabilities, and although their power conversion efficiencies are slightly lower, these materials also open up the possibility of quantum-confinement effects such as carrier multiplication. Furthermore, both bulk perovskites and low-dimensional perovskites have been demonstrated to form hybrids with silicon nanocrystals, where numerous device architectures can be exploited to improve efficiency. In this review, we provide an overview of perovskite solar cells, and report the current progress in nanoscale perovskites, such as low-dimensional perovskites, perovskite quantum dots, and perovskite-nanocrystal hybrid solar cells.

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Trindade, Carolina M. da, Gabriela C. Stoll, Altair S. Pereira, Tania M. H. Costa, and Edilson V. Benvenutti. "An innovative series of layered nanostructured aminoalkylsilica hybrid material." Journal of the Brazilian Chemical Society 20, no. 4 (2009): 737–43. http://dx.doi.org/10.1590/s0103-50532009000400017.

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Rojewska, Agnieszka, Anna Karewicz, Karolina Karnas, Karol Wolski, Mateusz Zając, Kamil Kamiński, Krzysztof Szczubiałka, Szczepan Zapotoczny, and Maria Nowakowska. "Pioglitazone-Loaded Nanostructured Hybrid Material for Skin Ulcer Treatment." Materials 13, no. 9 (April 28, 2020): 2050. http://dx.doi.org/10.3390/ma13092050.

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Pioglitazone, a popular antidiabetic drug, which was recently shown to be effective in the treatment of skin ulcers, was successfully encapsulated in polysaccharide nanoparticles and used as a bioactive component of the wound-dressing material based on modified bacterial nanocellulose. Alginate and hydroxypropyl cellulose were used as a matrix for the nanoparticulate drug-delivery system. The matrix composition and particles’ size, as well as drug encapsulation efficiency and loading, were optimized. Pioglitazone hydrochloride (PIO) loaded particles were coated with chitosan introduced into the crosslinking medium, and covalently attached to the surface of bacterial nanocellulose functionalized with carboxyl groups. PIO was released from the surface of the hybrid material in a controlled manner for 5 days. Preliminary cytotoxicity studies confirmed safety of the system at PIO concentrations as high as 20 mg/mL. The obtained hybrid system may have potential application in the treatment of skin ulcers e.g., in diabetic foot.

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Priyadarshi, Pankaj, and Neophytos Neophytou. "Computationally efficient Monte Carlo electron transport algorithm for nanostructured thermoelectric material configurations." Journal of Applied Physics 133, no. 5 (February 7, 2023): 054301. http://dx.doi.org/10.1063/5.0134466.

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Monte Carlo statistical ray-tracing methods are commonly employed to simulate carrier transport in nanostructured materials. In the case of a large degree of nanostructuring and under linear response (small driving fields), these simulations tend to be computationally overly expensive due to the difficulty in gathering the required flux statistics. Here, we present a novel Monte Carlo ray-tracing algorithm with computational efficiency of at least an order of magnitude compared to existing algorithms. Our new method, which is a hybrid of the analytical Boltzmann transport equation and Monte Carlo used a reduced number of ray-tracing particles, avoids current statistical challenges, such as the subtraction of two opposite going fluxes, the application of a driving force altogether, and the large simulation time required for low-energy carriers. We demonstrate the algorithm’s efficiency and power in accurate simulations in large domain nanostructures with multiple defects. We believe that the new method we present is indeed more robust and user friendly compared to common methods and can enable the efficient study of transport in nanostructured materials under low-field steady-state conditions.

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Zhu, Wenhui, and Ali Reza Kamali. "Molten Salt-Assisted Catalytic Preparation of MoS2/α-MoO3/Graphene as High-Performance Anode of Li-Ion Battery." Catalysts 13, no. 3 (February 28, 2023): 499. http://dx.doi.org/10.3390/catal13030499.

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We report on the facile and scalable catalytic conversion of natural graphite and MoS2 minerals into α-MoO3 nanoribbons incorporated into hexagonal MoS2 and graphene nanosheets, and evaluate the structural, morphological and electrochemical performances of the hybrid nanostructured material obtained. Mechanochemical treatment of raw materials, followed by catalytic molten salt treatment leads to the formation of nanostructures with promising electrochemical performances. We examined the effect of processing temperature on the electrochemical performance of the products. At 1100 °C, an excellent Li-ion storage capacity of 773.5 mAh g−1 is obtained after 180 cycles, considerably greater than that of MoS2 (176.8 mAh g−1). The enhanced capacity and the rate performance of this electrode are attributed to the well-integrated components, characterized by the formation of interfacial molybdenum oxycarbide layer during the synthesis process, contributing to the reduced electrical/electrochemical resistance of the sample. This unique morphology promotes the charge and ions transfer through the reduction of the Li-ion diffusion coefficient (1.2 × 10−18 cm2 s−1), enhancing the pseudocapacitive performance of the electrode; 59.3% at the scan rate of 0.5 mV s−1. This article provides a green and low-cost route to convert highly available natural graphite and MoS2 minerals into nanostructured hybrid materials with promising Li-ion storage performance.

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Ouellet-Plamondon, Claudiane, Pilar Aranda, Aurélie Favier, Guillaume Habert, Henri van Damme, and Eduardo Ruiz-Hitzky. "The Maya blue nanostructured material concept applied to colouring geopolymers." RSC Advances 5, no. 120 (2015): 98834–41. http://dx.doi.org/10.1039/c5ra14076e.

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Maya blue is an ancient nanostructured pigment. The novelty of our approach is to functionalize geopolymers with a sepiolite-based hybrid organic–inorganic nanocomposite, inspired from Maya blue. The colored cold ceramic is acid- and UV-resistant.

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Petcu, Cristian, Elvira Alexandrescu, Adriana Bălan, Maria Antonia Tănase, and Ludmila Otilia Cinteză. "Synthesis and Characterisation of Organo-Modified Silica Nanostructured Films for the Water-Repellent Treatment of Historic Stone Buildings." Coatings 10, no. 10 (October 21, 2020): 1010. http://dx.doi.org/10.3390/coatings10101010.

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This study presents the facile sol-gel synthesis of nanostructured coatings for use in water-repellent treatment of travertine stone. The synthesized materials combine surface roughness characteristics with particular chemical compositions to give different hydrophobicity results. The influence of the silica particle coating precursor on the hydrophobicity of the polymeric film was investigated, and the octyl-modified silane was selected for further fabrication of the hybrid coatings. The water repellent properties, together with composition and structural properties of the silane-based hybrid material were measured on model glass surface. The coating with the best characteristics was subsequently deposited onto the travertine stone. The potential applicability of the nanostructured material was evaluated considering both the properties of the coating film and those of the travertine stone subjected to the treatment. The surface texture of the film, water repellent properties and uniformity were determined using scanning electron microscopy, atomic force microscopy, dynamic light scattering and contact angle measurements. The coating’s potential for use in stone conservation was evaluated by assessing its impact on the stone’s visual aspect. All the results obtained from the different types of analyses showed that the octyl-modified silica nanostructured material was highly hydrophobic and compatible both with the travertine stone and with the requirements for use on cultural heritage monuments.

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Jebors, Saïd, Laurine Valot, Cécile Echalier, Baptiste Legrand, Remi Mikhaleff, Arie Van Der Lee, Raul Arenal, et al. "Self-mineralization and assembly of a bis-silylated Phe–Phe pseudodipeptide to a structured bioorganic–inorganic material." Materials Horizons 6, no. 10 (2019): 2040–46. http://dx.doi.org/10.1039/c9mh00580c.

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Iqbal, Nousheen, Xianfeng Wang, Jianlong Ge, Jianyong Yu, Hak-Yong Kim, Salem S. Al-Deyab, Mohamed El-Newehy, and Bin Ding. "Cobalt oxide nanoparticles embedded in flexible carbon nanofibers: attractive material for supercapacitor electrodes and CO2 adsorption." RSC Advances 6, no. 57 (2016): 52171–79. http://dx.doi.org/10.1039/c6ra06077c.

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Nguyen, Thuy N., Thu NM Huynh, DongQuy Hoang, Dai Hai Nguyen, Quoc Hien Nguyen, and Thai Hoa Tran. "Functional Nanostructured Oligochitosan–Silica/ Carboxymethyl Cellulose Hybrid Materials: Synthesis and Investigation of Their Antifungal Abilities." Polymers 11, no. 4 (April 4, 2019): 628. http://dx.doi.org/10.3390/polym11040628.

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Functional hybrid materials were successfully synthesized from low-cost waste products, such as oligochitosan (OCS) obtained from chitosan (one of the main components in crab shells) and nanosilica (nSiO2) obtained from rice husk, in a 1:1 ratio (w/w), and their dispersion in the presence of carboxymethyl cellulose at pH 7 was stable for over one month without aggregation. The molecular weights, chemical structures, morphologies, and crystallinities of the obtained materials were characterized by GPC, FTIR, TEM, and XRD, respectively. The antifungal effects of OCS, nSiO2, and the OCS/nSiO2 hybrid materials were investigated via a disk-diffusion method. The results showed that the nanohybrid materials had better resistance to Phytophthora infestans fungus than the individual components, and a concentration of the OCS2/nSiO2 hybrid material of 800 mg L−1 was the lowest concentration where the material completely inhibited Phytophthora infestans growth, as measured via an agar dilution method. This study not only creates a novel environmentally friendly material with unique synergistic effects that can replace current toxic agrochemicals but also can be considered a new platform for further research in green agricultural applications.

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Poyraz, Selcuk. "One-step preparation and characterization of a nanostructured hybrid electrode material via a microwave energy-based approach." New Journal of Chemistry 44, no. 25 (2020): 10592–603. http://dx.doi.org/10.1039/d0nj00604a.

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Ziogas, Panagiotis, Athanasios B. Bourlinos, Polyxeni Chatzopoulou, George P. Dimitrakopulos, Thomas Kehagias, Anastasios Markou, and Alexios P. Douvalis. "Intriguing Prospects of a Novel Magnetic Nanohybrid Material: Ferromagnetic FeRh Nanoparticles Grown on Nanodiamonds." Metals 12, no. 8 (August 15, 2022): 1355. http://dx.doi.org/10.3390/met12081355.

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A novel endeavor based on the synthesis, characterization and study of a hybrid crystalline magnetic nanostructured material composed of bimetallic iron–rhodium nanoalloys, grown on nanodiamond nanotemplates, is reported in this study. The development of this hybrid magnetic nanomaterial is grounded in the combination of wet chemistry and thermal annealing under vacuum. In order to assess, evaluate and interpret the role and special properties of the nanodiamond supporting nanotemplates on the growth and properties of the bimetallic ferromagnetic Fe–Rh nanoparticles on their surfaces, unsupported free FeRh nanoparticles of the same nominal stoichiometry as for the hybrid sample were also synthesized. The characterization and study of the prepared samples with a range of specialized experimental techniques, including X-ray diffraction, transmission and scanning transmission electron microscopy with energy dispersive X-ray analysis, magnetization and magnetic susceptibility measurements and 57Fe Mössbauer spectroscopy, reveal that thermal annealing of the hybrid sample under specific conditions (vacuum, 700 °C, 30 min) leads to the formation of a rhodium-rich FeRh alloy nanostructured phase, with an average particle size of 4 nm and good dispersion on the surfaces of the nanodiamond nanotemplates and hard ferromagnetic characteristics at room temperature (coercivity of ~500 Oe). In contrast, thermal annealing of the unsupported free nanoparticle sample under the same conditions fails to deliver ferromagnetic characteristics to the FeRh nanostructured alloy phase, which shows only paramagnetic characteristics at room temperature and spin glass ordering at low temperatures. The ferromagnetic nanohybrids are proposed to be exploited in a variety of important technological applications, such as magnetic recording, magnetic resonance imaging contrast and magnetic hyperthermia agents.

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de la Rosa-Fox, Nicolás, Victor Morales-Flórez, Manuel Piñero, and Luis Maria Esquivias Fedriani. "NanoStructured Sonogels." Key Engineering Materials 391 (October 2008): 45–78. http://dx.doi.org/10.4028/www.scientific.net/kem.391.45.

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Acoustic cavitation effects in sol-gel liquid processing permits to obtain nanostructured materials, with size-dependent properties. The so-called “hot spots” produce very high temperatures and pressures which act as nanoreactors. Ultrasounds force the dissolution and the reaction stars. The products (alcohol, water and silanol) help to continue the dissolution, being catalyst content, temperature bath and alkyl group length dependent. Popular choices used in the preparation of silica-based gels are tetramethoxysilane (TMOS), Si(OCH3)4, and tetraethoxysilane (TEOS), Si(OC2H5)4. The resultant “sonogels” are denser gels with finer and homogeneous porosity than those of classic ones. They have a high surface/volume ratio and are built by small particles (1 nm radius) and a high cross-linked network with low –OH surface coverage radicals. In this way a cluster model is presented based on randomly-packed spheres in several hierarchical levels that represent the real sonoaerogel. Organic modified silicates (ORMOSIL) were obtained by supercritical drying in ethanol of the corresponding alcogel producing a hybrid organic/inorganic aerogel. The new material takes the advantages of the organic polymers as flexibility, low density, toughness and formability whereas the inorganic part contributes with surface hardness, modulus strength, transparency and high refractive index. The sonocatalytic method has proven to be adequate to prepare silica matrices for fine and uniform dispersion of CdS and PbS quantum dots (QDs), which show exciton quantum confinement. We present results of characterization of these materials, such as nitrogen physisorption, small angle X-ray/neutrons scattering, electron microscopy, uniaxial compression and nanoindentation. Finally these materials find application as biomaterials for tissue engineering and for CO2 sequestration by means the carbonation reaction.

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Belkham, N. el H., D. Benachour, and A. Mehamha. "Elaboration and Physico-Chemical Characterization of the Gibbsite Li(OH)3 Hybrid Material." Engineering, Technology & Applied Science Research 11, no. 1 (February 6, 2021): 6740–44. http://dx.doi.org/10.48084/etasr.3988.

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A hybrid material can be defined as a combination of two components of different chemical nature. The combination of a mineral matrix and organic matter has multiple significance. From a chemical point of view, it allows the obtaining of bi-functional materials that combine the chemical properties of their components. The development of new materials with specific properties and nanostructured Lamellar Double Hydroxides (LDHs) has been widely investigated due to their great importance. This study focuses on the development of a hybrid material consisting of a matrix of alumina trihydrate Al(OH)3 (gibbsite). Previous studies on the synthesis of suspension LDHs by lithium salts intercalation in a gibbsite matrix were examined, while the obtained samples were characterized by different physicochemical methods.

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Sundberg, Pia, and Maarit Karppinen. "Organic and inorganic–organic thin film structures by molecular layer deposition: A review." Beilstein Journal of Nanotechnology 5 (July 22, 2014): 1104–36. http://dx.doi.org/10.3762/bjnano.5.123.

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The possibility to deposit purely organic and hybrid inorganic–organic materials in a way parallel to the state-of-the-art gas-phase deposition method of inorganic thin films, i.e., atomic layer deposition (ALD), is currently experiencing a strongly growing interest. Like ALD in case of the inorganics, the emerging molecular layer deposition (MLD) technique for organic constituents can be employed to fabricate high-quality thin films and coatings with thickness and composition control on the molecular scale, even on complex three-dimensional structures. Moreover, by combining the two techniques, ALD and MLD, fundamentally new types of inorganic–organic hybrid materials can be produced. In this review article, we first describe the basic concepts regarding the MLD and ALD/MLD processes, followed by a comprehensive review of the various precursors and precursor pairs so far employed in these processes. Finally, we discuss the first proof-of-concept experiments in which the newly developed MLD and ALD/MLD processes are exploited to fabricate novel multilayer and nanostructure architectures by combining different inorganic, organic and hybrid material layers into on-demand designed mixtures, superlattices and nanolaminates, and employing new innovative nanotemplates or post-deposition treatments to, e.g., selectively decompose parts of the structure. Such layer-engineered and/or nanostructured hybrid materials with exciting combinations of functional properties hold great promise for high-end technological applications.

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Lu, Qilin, Zhenghan Cai, Siqun Wang, Fengcai Lin, Beili Lu, Yandan Chen, and Biao Huang. "Controlled Construction of Nanostructured Organic–Inorganic Hybrid Material Induced by Nanocellulose." ACS Sustainable Chemistry & Engineering 5, no. 9 (August 24, 2017): 8456–63. http://dx.doi.org/10.1021/acssuschemeng.7b02394.

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Kumar, Arvind, Praveen Kumar Shahi, Amresh Bahadur, Sunil Kumar Singh, Rajiv Prakash, Ram Anjore Yadav, and Shyam Bahadur Rai. "Development of inorganic-organic hybrid nanostructured material for H2O2 sensing application." Materials Research Express 7, no. 5 (May 1, 2020): 056201. http://dx.doi.org/10.1088/2053-1591/ab8c0a.

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Stefano, L., E. Tommasi, I. Rea, L. Rotiroti, M. Canciello, G. Maglio, and R. Palumbo. "A nanostructured hybrid material based on polymer infiltrated porous silicon layer." Applied Physics A 98, no. 3 (December 1, 2009): 525–30. http://dx.doi.org/10.1007/s00339-009-5479-5.

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Ivanov, Alexander S., Tapas Kar, and Alexander I. Boldyrev. "Nanoscale stabilization of zintl compounds: 1D ionic Li–P double helix confined inside a carbon nanotube." Nanoscale 8, no. 6 (2016): 3454–60. http://dx.doi.org/10.1039/c5nr07713c.

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We demonstrate a prediction of a novel hybrid material, a nanotube encapsulated 1D ionic LiP double-helix structure, suggesting that nanostructured confinement may be used to stabilize other zintl polyphosphide chains.

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Sleptsov, Vladimir V., Lev V. Kozhitov, Anna O. Diteleva, Dmitry Yu Kukushkin, and Alena V. Popkova. "Recent progress and development prospects of mobile current sources." Modern Electronic Materials 9, no. 2 (July 6, 2023): 77–90. http://dx.doi.org/10.3897/j.moem.9.2.109923.

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Physicochemical fundamentals have been developed for the basic design solutions and fabrication technologies of prospective electrolytic power cells with a reusable cell capacity of 350–500 W·h/kg at the first stage and 1000 W·h/kg at the second stage. Along with conventional chemical current sources and ionistors, there are emerging high-performance supercapacitor structures with thin dielectric in the double electric layer and hybrid capacitors in which energy is accumulated in the double electric layer and due to electrochemical processes. This approach reduces the internal resistance of the electrolytic cells thus decreasing the heat emission during operation and therefore providing for a higher specific energy capacity and operation safety, shorter charging time and an increase in specific power. Prospective anode is a nanostructured electrode material in the form of a carbon matrix filled with a nanostructured chemically active material. Promising carbon matrix fillers are Li and its alloys, Si, Al, Na, Sn, Mg, Zn, Ni, Co, Ag, as well as a range of other materials and their compounds. The effect of carbon material specific surface area, dielectric permeability and chemically active material addition on the specific energy capacity has been studied. Theoretical specific energy capacity of metal/air hybrid capacitors has been calculated. Thin-film technological system has been designed for new generation electrode materials in the form of carbon matrices with highly developed surface containing thin tunneling dielectrics and chemically active materials on dielectric surface.

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Rath, T., L. Gury, I. Sánchez-Molina, L. Martínez, and S. A. Haque. "Formation of porous SnS nanoplate networks from solution and their application in hybrid solar cells." Chemical Communications 51, no. 50 (2015): 10198–201. http://dx.doi.org/10.1039/c5cc03125g.

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Herein, we present a facile solution-based route towards nanostructured, hybrid absorber layers based on tin mono-sulfide (SnS), an emerging, non-toxic absorber material for low-cost and large-scale PV applications.

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Anžlovar, Alojz, and Ema Žagar. "Cellulose Structures as a Support or Template for Inorganic Nanostructures and Their Assemblies." Nanomaterials 12, no. 11 (May 27, 2022): 1837. http://dx.doi.org/10.3390/nano12111837.

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Cellulose is the most abundant natural polymer and deserves the special attention of the scientific community because it represents a sustainable source of carbon and plays an important role as a sustainable energent for replacing crude oil, coal, and natural gas in the future. Intense research and studies over the past few decades on cellulose structures have mainly focused on cellulose as a biomass for exploitation as an alternative energent or as a reinforcing material in polymer matrices. However, studies on cellulose structures have revealed more diverse potential applications by exploiting the functionalities of cellulose such as biomedical materials, biomimetic optical materials, bio-inspired mechanically adaptive materials, selective nanostructured membranes, and as a growth template for inorganic nanostructures. This article comprehensively reviews the potential of cellulose structures as a support, biotemplate, and growing vector in the formation of various complex hybrid hierarchical inorganic nanostructures with a wide scope of applications. We focus on the preparation of inorganic nanostructures by exploiting the unique properties and performances of cellulose structures. The advantages, physicochemical properties, and chemical modifications of the cellulose structures are comparatively discussed from the aspect of materials development and processing. Finally, the perspective and potential applications of cellulose-based bioinspired hierarchical functional nanomaterials in the future are outlined.

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Shtansky, Dmitry V., Evgeny A. Levashov, Irina V. Batenina, Natalia A. Gloushankova, Natalia Yu Anisimova, Mikhail V. Kiselevsky, and Igor V. Reshetov. "Recent Progress in the Field of Multicomponent Biocompatible Nanostructured Films." Key Engineering Materials 587 (November 2013): 263–68. http://dx.doi.org/10.4028/www.scientific.net/kem.587.263.

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Multicomponent bioactive nanostructured films (MuBiNaFs) with an excellent combination of chemical, mechanical, tribological, and biological properties were developed and deposited by sputtering of composite targets produced via the self-propagating high-temperature synthesis method. Reviewed substrate materials included Ti-, Ni-, and Co-based alloys, insoluble polymers, and deimmunized donors bones. Our results showed that the MuBiNaF deposition can be effectively combined with either a bulk material modification to improve its mechanical properties, or a surface modification to control surface roughness and blind porosity. Among other promising applications, the fabrication of hybrid materials incorporated with stem cells or medicine is mentioned.

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Li, Yuan, and Nitin Chopra. "Optical properties of nanostructured carbon and gold nanoparticle hybrids." MRS Proceedings 1700 (2014): 79–82. http://dx.doi.org/10.1557/opl.2014.575.

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ABSTRACTWe report simulation of optical properties of hybrid geometry comprised of multilayer graphene shell encapsulated gold nanoparticles loaded with carbon nanotubes. The discrete dipole approximation (DDA) method was employed. The results indicated that the optical properties of encapsulated gold nanoparticles were not suppressed by the carbon material coating. Furthermore, low scattering effects were also observed. The simulation method helped visualize the near-surface normalized electric field, which is directly related to the intensity of hot spots on the surface of these hybrid nanoarchitectures.

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Sahai, Ankit, Rahul Swarup Sharma, and K. Hans Raj. "Evolution of Strain in Multipass Hybrid Equal Channel Angular Pressing Using 3D Finite Element Analysis." Materials Science Forum 762 (July 2013): 283–88. http://dx.doi.org/10.4028/www.scientific.net/msf.762.283.

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Severe Plastic Deformation (SPD) is well known process for producing nanostructured material from coarse material. Present paper is an effort to integrate the two well known SPD techniques Equal Channel Angular Pressing (ECAP) and Twist Extrusion (TE) to develop a new Hybrid ECAP (HECAP) technique that can produce nanostructured material more economically. In this technique, the specimen is subjected to both ECAP and TE in the same die setup. Finite Element (FE) modeling of metal forming processes has become an important tool for designing feasible production processes, because of its unique capability to describe the complex geometry and boundary conditions. FE Modeling of the above hybrid process is attempted in FORGE. The simulation results clearly depict the change in equivalent strain in the entire specimen on account of this process upto four passes. A comparison is made between FE results of simple ECAP and HECAP upto four passes. The study indicated that equivalent strain is much higher in case of HECAP in comparison to ECAP for same friction conditions. Also, the study is extended to analyse the effect of friction, channel angle and forging force on equivalent strain using current FE model. HECAP opens new possibilities for improving equivalent strain in same number of passes as compared to ECAP. This study is expected to contribute in forming UFG materials that are useful for automobile and aerospace industries.

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Ambrosio, R., O. Arciniega, A. Carrillo, M. Moreno, A. Heredia, and C. Martinez. "Organic–inorganic hybrid thin films based in HfO2 nanoparticles as dielectric for flexible electronics." Canadian Journal of Physics 92, no. 7/8 (July 2014): 806–12. http://dx.doi.org/10.1139/cjp-2013-0570.

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In this work the synthesis and characterization of an organic–inorganic hybrid composite film based on hafnium oxide (HfO2) and polyvinylpyrrolidone (PVP) with dielectric properties is presented. These films were prepared using the sol-gel process adjusting the chemical composition to tailor the material properties, such as the dielectric and the optical band gap. The HfO2 was obtained by the hydrolysis of hafnium chloride (HfCl4) under catalysis of ethanol and deionized water, later the PVP was subsequently added to complete the hydrolysis. Finally the films were dried at 150 °C. The structural characterization of the hybrid material showed a hafnium nanoparticle size around 100 nm into the polymer matrix. The chemical structure and the high purity of the hybrid material were corroborated by X-ray photoelectron spectroscopy measurements, which showed the bounding of HfO2–PVP. The electrical characterization demonstrated that the nanostructured materials with hafnium nanoparticles improve the dielectric constant in the films with values around k = 18.5. The optical band gap, Eo, was obtained from 4 to 5.7 eV. These characteristics in our hybrid material are very promising for flexible electronics applications with the advantage of its low temperature, thermal stability, and low cost process of deposition.

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López_Marzo, Adaris M., Josefina Pons, and Arben Merkoçi. "Extremely fast and high Pb2+ removal capacity using a nanostructured hybrid material." Journal of Materials Chemistry A 2, no. 23 (2014): 8766. http://dx.doi.org/10.1039/c4ta00985a.

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Casañ-Pastor, Nieves. "Nanocarbon-Iridium Oxide Nanostructured Hybrids as Large Charge Capacity Electrostimulation Electrodes for Neural Repair." Molecules 26, no. 14 (July 12, 2021): 4236. http://dx.doi.org/10.3390/molecules26144236.

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Nanostructuring nanocarbons with IrOx yields to material coatings with large charge capacities for neural electrostimulation, and large reproducibility in time, that carbons do not exhibit. This work shows the contributions of carbon and the different nanostructures present, as well as the impact of functionalizing graphene with oxygen and nitrogen, and the effects of including conducting polymers within the hybrid materials. Different mammalian neural growth models differentiate the roles of the substrate material in absence and in presence of applied electric fields and address optimal electrodes for the future clinical applications.

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Marinescu, Gabriela, Daniela C. Culita, Teodora Mocanu, Raul-Augustin Mitran, Simona Petrescu, Miruna S. Stan, Mariana C. Chifiriuc, and Marcela Popa. "New Nanostructured Materials Based on Mesoporous Silica Loaded with Ru(II)/Ru(III) Complexes with Anticancer and Antimicrobial Properties." Pharmaceutics 15, no. 5 (May 10, 2023): 1458. http://dx.doi.org/10.3390/pharmaceutics15051458.

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A new series of nanostructured materials was obtained by functionalization of SBA-15 mesoporous silica with Ru(II) and Ru(III) complexes bearing Schiff base ligands derived from salicylaldehyde and various amines (1,2-diaminocyclohexane, 1,2-phenylenediamine, ethylenediamine, 1,3-diamino-2-propanol, N,N-dimethylethylenediamine, 2-aminomethyl-pyridine, and 2-(2-aminoethyl)-pyridine). The incorporation of ruthenium complexes into the porous structure of SBA-15 and the structural, morphological, and textural features of the resulting nanostructured materials were investigated by FTIR, XPS, TG/DTA, zeta potential, SEM, and N2 physisorption. The ruthenium complex-loaded SBA-15 silica samples were tested against A549 lung tumor cells and MRC-5 normal lung fibroblasts. A dose-dependent effect was observed, with the highest antitumoral efficiency being recorded for the material containing [Ru(Salen)(PPh3)Cl] (50%/90% decrease in the A549 cells’ viability at a concentration of 70 μg/mL/200 μg/mL after 24 h incubation). The other hybrid materials have also shown good cytotoxicity against cancer cells, depending on the ligand included in the ruthenium complex. The antibacterial assay revealed an inhibitory effect for all samples, the most active being those containing [Ru(Salen)(PPh3)Cl], [Ru(Saldiam)(PPh3)Cl], and [Ru(Salaepy)(PPh3)Cl], especially against Staphylococcus aureus and Enterococcus faecalis Gram-positive strains. In conclusion, these nanostructured hybrid materials could represent valuable tools for the development of multi-pharmacologically active compounds with antiproliferative, antibacterial, and antibiofilm activity.

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Li, Zhenhui, Ke Xu, and Fanan Wei. "Recent progress in photodetectors based on low-dimensional nanomaterials." Nanotechnology Reviews 7, no. 5 (October 25, 2018): 393–411. http://dx.doi.org/10.1515/ntrev-2018-0084.

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Abstract Photodetectors (PDs) have great potential in applications of imaging, telecommunication, and biological sensing. In this article, state-of-the-art achievements on typical low-dimensional nanostructured PDs and hybrid PDs are reviewed. In the 2D nanostructured PDs part, 2D transition metal dichalcogenides have a natural gap, which promise high sensitivity of photodetection. Graphene and black phosphorus can also stand for 2D nanostructured PDs due to their broadband absorption and tunable direct bandgap, respectively. In the 1D nanostructured PDs part, owing to its high photoconductive characteristic, ZnO nanowire film is a promising material for ultraviolet PDs. Carbon nanotubes show potential in infrared (IR) detection due to its unique physical properties. In the 0D nanostructured PDs part, lead sulfide has a small bandgap and large Bohr exciton radius, which collectively give it a wide spectral tunability in the IR. In the hybrid PDs part, electrical and chemical doping is applied to combine different nanomaterials to realize PDs with high performance. In each part, the present situation and major challenges are overviewed. Then, the evolutions of the methods to overcome these challenges and the tremendous research breakthroughs are demonstrated. At last, future directions that could improve the performance of PDs are discussed.

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Mercante, Luiza A., Vanessa P. Scagion, Adriana Pavinatto, Rafaela C. Sanfelice, Luiz H. C. Mattoso, and Daniel S. Correa. "Electronic Tongue Based on Nanostructured Hybrid Films of Gold Nanoparticles and Phthalocyanines for Milk Analysis." Journal of Nanomaterials 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/890637.

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The use of gold nanoparticles combined with other organic and inorganic materials for designing nanostructured films has demonstrated their versatility for various applications, including optoelectronic devices and chemical sensors. In this study, we reported the synthesis and characterization of gold nanoparticles stabilized with poly(allylamine hydrochloride) (Au@PAH NPs), as well as the capability of this material to form multilayer Layer-by-Layer (LbL) nanostructured films with metal tetrasulfonated phthalocyanines (MTsPc). Film growth was monitored by UV-Vis absorption spectroscopy, atomic force microscopy (AFM), and Fourier transform infrared spectroscopy (FTIR). Once LbL films have been applied as active layers in chemical sensors, Au@PAH/MTsPc and PAH/MTsPc LbL films were used in an electronic tongue system for milk analysis regarding fat content. The capacitance data were treated using Principal Component Analysis (PCA), revealing the role played by the gold nanoparticles on the LbL films electrical properties, enabling this kind of system to be used for analyzing complex matrices such as milk without any prior pretreatment.

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Drozdov, Andrey S., Kristina S. Komarova, Elizaveta N. Mochalova, Elena N. Komedchikova, Victoria O. Shipunova, and Maxim P. Nikitin. "Fluorescent Magnetic Nanoparticles for Bioimaging through Biomimetic Surface Modification." International Journal of Molecular Sciences 24, no. 1 (December 21, 2022): 134. http://dx.doi.org/10.3390/ijms24010134.

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Nanostructured materials and systems find various applications in biomedical fields. Hybrid organo–inorganic nanomaterials are intensively studied in a wide range of areas, from visualization to drug delivery or tissue engineering. One of the recent trends in material science is biomimetic approaches toward the synthesis or modification of functional nanosystems. Here, we describe an approach toward multifunctional nanomaterials through the biomimetic polymerization of dopamine derivatives. Magnetite nanoparticles were modified with a combination of dopamine conjugates to give multifunctional magneto-fluorescent nanocomposites in one synthetic step. The obtained material showed excellent biocompatibility at concentrations up to 200 μg/mL and an in vivo biodistribution profile typical for nanosized formulations. The synthesized systems were conjugated with antibodies against HER2 to improve their selectivity toward HER2-positive cancer cells. The produced material can be used for dual magneto-optical in vivo studies or targeted drug delivery. The applied synthetic strategy can be used for the creation of various multifunctional hybrid nanomaterials in mild conditions.

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Mohd Yassin, Muhammad Abdullah Izat Bin, Khaidzir Hamzah, and Sib Krishna Ghoshal. "Electron Beam-Initiated Grafting of Methyl Methacrylate on Silicon Nanowires: Investigating Optical and Structural Properties." Advances in Materials Science and Engineering 2023 (October 3, 2023): 1–11. http://dx.doi.org/10.1155/2023/7011929.

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Silicon nanowire (SiNW) is a one-dimensional nanostructured material that had been widely studied due to its potential applications in various fields. Combination of polymers and nanostructured materials offers great potential for enhanced material with many possible applications. The investigation focuses on how this grafting process influences the optical properties of SiNWs, aiming to uncover potential applications for these hybrid materials. This paper comprehensively presents the methodology and characterization of these SiNWs-MMA hybrid materials, exploring their potential applications. The experimental process begins with the preparation of six SiNWs using RF magnetron sputtering, involving the deposition of an Au catalyst and subsequent growth of SiNWs. The radiation-induced grafting involves exposing SiNWs to electron beams and subsequently grafting MMA onto the surface. The outcomes reveal that the grafting percentage of MMA onto SiNWs increases with higher radiation doses, leading to a polymer layer covering the SiNWs. This grafting is confirmed through Fourier-transform infrared (FTIR) spectroscopy, which shows characteristic peaks of MMA on the surface. X-ray diffraction (XRD) analysis demonstrates changes in crystallite size, microstrain, and dislocation density upon grafting, which are attributed to stress relief and the effect of polymer on SiNWs’ lattice. Field emission scanning electron microscopy (FESEM) images exhibit the increasing MMA layer on SiNWs as the grafting percentage increases. UV-visible spectroscopy shows that the introduction of MMA increases the optical band gap of SiNWs, attributed to changes in surface roughness due to the carbon from MMA. This study introduces a novel method of hybridizing SiNWs with MMA through radiation-induced grafting. The detailed characterization of the resulting SiNWs-MMA hybrid materials sheds light on their structural and optical properties. These findings hold the promise of innovative applications in various technological fields, further advancing nanotechnology.

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Detcheva, Albena, Paunka Vassileva, Ralitsa Georgieva, Dimitrinka Voykova, Tsvetelina Gerganova, and Yordanka Ivanova. "Adsorption properties of a nanostructured hybrid material containing aluminium towards some metal ions." Open Chemistry 9, no. 5 (October 1, 2011): 932–40. http://dx.doi.org/10.2478/s11532-011-0080-0.

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AbstractIn the present work the adsorption of some transition metal ions from aqueous solutions on a silica-based nanostructured hybrid material modified by aluminium was investigated. The novel organic-inorganic material was synthesized via a sol-gel method through hydrolysis and co-condensation reactions. Its structure was characterized by means of SEM, XRD and FTIR. Based on the data obtained the most probable cross-linking mechanism for the derived xerogel was proposed. The characterization of its texture parameters was carried out by low-temperature adsorption of nitrogen. The adsorption properties of this material with respect to Cu(II), Cr(III) and Pb(II) ions from single-component aqueous solutions and multi-component aqueous solutions containing also Cd(II) and Fe(III) were evaluated. The effect of contact time, acidity of initial solutions and metal ion concentrations was investigated using the batch method. Pseudo-first order, pseudo-second order and intraparticle diffusion models were used to analyze kinetic data. In all cases the adsorption was significantly affected by the pH value. Equilibrium modelling data were fitted to linear Langmuir, Freundlich and Dubinin-Radushkevich models. Best fit was observed for Langmuir model, which showed determination coefficients greater than 0.992 for all ions studied. The maximum adsorption capacities for single- and multi-component adsorption were calculated.

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Masteri-Farahani, M., and S. Shahbazi. "Facile synthesis of rod-like nanostructured histidine-phosphomolybdate hybrid material with microemulsion method." Inorganic and Nano-Metal Chemistry 47, no. 4 (August 5, 2016): 543–48. http://dx.doi.org/10.1080/15533174.2016.1186089.

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Tong, Zhiwei, Tetsuya Shichi, Koji Oshika, and Katsuhiko Takagi. "A Nanostructured Hybrid Material Synthesized by the Intercalation of Porphyrin into Layered Titanoniobate." Chemistry Letters 31, no. 9 (September 2002): 876–77. http://dx.doi.org/10.1246/cl.2002.876.

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Rombaut, Juan, Manuel Fernandez, Prantik Mazumder, and Valerio Pruneri. "Nanostructured Hybrid-Material Transparent Surface with Antireflection Properties and a Facile Fabrication Process." ACS Omega 4, no. 22 (November 12, 2019): 19840–46. http://dx.doi.org/10.1021/acsomega.9b02775.

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Dos Santos, Andre, Marcos Dias, and David Antonelli. "Combustion Properties of Several Species of WoodCombustion Properties of Several Species of Wood." Chemistry & Chemical Technology 3, no. 3 (September 15, 2009): 177–82. http://dx.doi.org/10.23939/chcht03.03.177.

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Mesoporous niobium oxide (Nb2O5) was synthesized and treated with naphthalene sulfonated formaldehyde resin (NSF) solution. These new inorganic-organic hybrid composites were characterized by different techniques. Results indicated that the pores of the nanostructured material are filled with the NSF resin with changes in the morphology and thermal properties of the mesoporous Nb2O5

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Haug, Rüdiger, Helmut Griesser, Thomas Sabirov, and Clemens Richert. "DNA-porphyrin hybrids as reaction centers for photosensitized ene reactions with singlet oxygen." Journal of Porphyrins and Phthalocyanines 16, no. 05n06 (May 2012): 488–98. http://dx.doi.org/10.1142/s1088424612500484.

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Recent developments in DNA-mediated nanostructuring have paved the way for the development of novel reaction centers. As part of a project focused on nanostructured reaction centers for reactions catalyzed by porphyrins, we have developed a solid-phase synthesis of tetrakis(p-hydroxyphenyl)porphyrin-oligonucleotide hybrids. In these hybrids, up to four nucleic acid chains are linked to the phenolic substituents of the porphyrin via phosphodiester linkages. A representative hybrid with one oligonucleotide chain of the sequence TTAA was found to survive light irradiation under aerobic conditions for 2 h with less than 35% oxidation of the DNA chain. An assay measuring the diastereo- and enantioselectivity of the photosensitized ene reaction of mesitylol with singlet oxygen was set up that provides diastereomeric ratios via NMR of aliquots of the reaction solution. Enantiomers were separated gas chromatographically on a chiral stationary phase and were assigned based on the product distribution obtained with an enantiomerically enriched starting material. Our results are a starting point for the exploration of nanostructured reaction media based on DNA and porphyrins.

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Huang, Wei, Xinxin Xiao, Christian Engelbrekt, Minwei Zhang, Shuo Li, Jens Ulstrup, Lijie Ci, Jinkui Feng, Pengchao Si, and Qijin Chi. "Graphene encapsulated Fe3O4 nanorods assembled into a mesoporous hybrid composite used as a high-performance lithium-ion battery anode material." Materials Chemistry Frontiers 1, no. 6 (2017): 1185–93. http://dx.doi.org/10.1039/c6qm00252h.

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A new nanostructured mesoporous composite comprised of 75% iron oxide nanorods and 25% reduced graphene oxide shows high electrochemical performances as a promising lithium-ion battery anode material.

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HERBEI, Elena Emanuela, and Claudiu-Ionuț VASILE. "Hybrid Nanostructures Based of Ta2O5-PMMA for Electronic Applications." Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science 46, no. 4 (December 15, 2023): 97–101. http://dx.doi.org/10.35219/mms.2023.4.17.

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The scientific interest on hybrid materials is mainly related to understanding the types of interactions between inorganic and organic component and the effect of these interactions on the properties of the new material formed. Hybrid nanostructured materials and especially dielectrics are used for electronics (for gate layer) and especially those applicable in structure of different types of thin film transistors (TFTs).In this paper is presented the research on thin film hybrid materials based on tantalum oxide (Ta2O5) starting with inorganic precursor - tantalum ethoxide and polymethylmethacrylate (PMMA). The chemical method sol -gel involves the precursor-tantalum ethoxide which is hydrolysed and functionalized (with special siloxane compound), and the organic methyl methacrylate monomer. The chemical reactions take place at low temperature below 160 oC. The sol is deposited as thin films by spin-coating to analyse intensity-voltage (I-V) and capacitance-voltage curves (C-V) to determine the electric properties. Metal-Insulator-Metal (MIM) structures were made-up for electric characterisation. The value of leakage currents was between 10-10 - 10-7 A at ± 40 V. The hybrid films were analysed by scanning electron microscopy (SEM) for thickness and morphology and for thermal stability the sol was investigated by TG and DSC.The dielectric permittivity ranges between 3.5 and 4 at 1 MHz, depending on the tantalum alkoxide: MMA molar ratio, showing good behaviour for gate layer in future TFTs.

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Journal articles on the topic 'Nanostructured hybrid material'

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