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Journal articles on the topic 'Semoconductor Nanomaterials - Optical Properties'

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Author: Grafiati

Published: 7 September 2023

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1

Chekman, I. S., V. A. Pokrovskiy, and D. S. Savchenko. "Optical properties of nanomaterials." Visnik Nacional'noi' akademii' nauk Ukrai'ni, no. 10 (October 20, 2014): 30–41. http://dx.doi.org/10.15407/visn2014.10.030.

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2

Singh, Anant Kumar, Dulal Senapati, Adria Neely, Gabriel Kolawole, Craig Hawker, and Paresh Chandra Ray. "Nonlinear optical properties of triangular silver nanomaterials." Chemical Physics Letters 481, no. 1-3 (October 2009): 94–98. http://dx.doi.org/10.1016/j.cplett.2009.09.045.

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3

SUN, YA-PING, JASON E. RIGGS, KEVIN B. HENBEST, and ROBERT B. MARTIN. "NANOMATERIALS AS OPTICAL LIMITERS." Journal of Nonlinear Optical Physics & Materials 09, no. 04 (December 2000): 481–503. http://dx.doi.org/10.1142/s0218863500000315.

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Optical limiters based on several different classes of nanomaterials are reviewed. The systems under consideration include metal and semiconductor nanoparticles and nanoscale carbon materials. For the latter, the optical limiting properties of carbon nanoparticles, fullerenes, and suspended and solubilized carbon nanotubes are summarized and compared. Mechanistic implications of the available experimental results are discussed in terms of the comparison between nonlinear scattering versus nonlinear absorption as the dominating optical limiting mechanism for different nanomaterials and for different physico-chemical states of a nanomaterial.

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4

Martin-Palma, Raul J. "Book Review: Optical Properties and Spectroscopy of Nanomaterials." Journal of Nanophotonics 3, no. 1 (November 1, 2009): 030206. http://dx.doi.org/10.1117/1.3271380.

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5

Zong, Jia-Qi, Shu-Feng Zhang, Wei-Xiao Ji, Chang-Wen Zhang, Ping Li, and Pei-Ji Wang. "Electric structure and optical properties of ReS2 nanomaterials." Superlattices and Microstructures 122 (October 2018): 262–67. http://dx.doi.org/10.1016/j.spmi.2018.07.040.

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6

Li, Jinghong, and Jin Z. Zhang. "Optical properties and applications of hybrid semiconductor nanomaterials." Coordination Chemistry Reviews 253, no. 23-24 (December 2009): 3015–41. http://dx.doi.org/10.1016/j.ccr.2009.07.017.

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7

Turel, Matejka, Tinkara Mastnak, and Aleksandra Lobnik. "Optical Chemical Nanosensors in Clinical Applications." Defect and Diffusion Forum 334-335 (February 2013): 387–96. http://dx.doi.org/10.4028/www.scientific.net/ddf.334-335.387.

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Because of their size and versatile chemistry, nanomaterials represent today powerful tools for (bio) sensing applications. Various types of nanomaterials have proven to be practical, not only for the determination of clinically relevant parameters, but also for diagnostics, drug delivery and treatment of diseases (e.g. cancer). In this short review, types of nanomaterials used in medical applications are briefly described along with some of their applications where the nanomaterials optical properties can be exploited. The question of the toxicity of nanomaterials and the issue of future trends are also raised.

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8

Anh, Tran Kim, Man Hoai Nam, Dinh Xuan Loc, Nguyen Vu, Wieslaw Strek, and Le Quoc Minh. "Preparation and optical properties of ZnO, ZnO: Al nanomaterials." Journal of Physics: Conference Series 187 (September 1, 2009): 012019. http://dx.doi.org/10.1088/1742-6596/187/1/012019.

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9

Seo, J. T., Q. Yang, S. Creekmore, D. Temple, L. Qu, W. Yu, A. Wang, et al. "Evaluation of nonlinear optical properties of cadmium chalcogenide nanomaterials." Physica E: Low-dimensional Systems and Nanostructures 17 (April 2003): 101–3. http://dx.doi.org/10.1016/s1386-9477(02)00714-2.

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10

Tripathi, S. K., Jagdish Kaur, R. Ridhi, Kriti Sharma, and Ramneek Kaur. "Radiation Induced Effects on Properties of Semiconducting Nanomaterials." Solid State Phenomena 239 (August 2015): 1–36. http://dx.doi.org/10.4028/www.scientific.net/ssp.239.1.

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The irradiation of nanomaterials with energetic particles has significant effects on the properties of target materials. In addition to the well-known detrimental effects of irradiations, they have also some beneficial effects on the properties of nanomaterials. Irradiation effect can change the morphology of the materials in a controlled manner and tailor their mechanical, structural, optical and electrical properties. Irradiation induced modifications in the properties of nanomaterials can be exploited for many useful applications. With the aim of getting better performance of electronic devices, it is necessary to discuss the irradiation induced changes in the nanomaterials. In order to improve the irradiation hardness of electronic components, it is also crucial to have a fundamental understanding of the impact of the irradiation on the defect states and transport properties of the host material. In the present article, we review some recent advances on the irradiation induced effects on the properties of semiconducting nanomaterials. We have reviewed the effect of different types of irradiations which includes γ-irradiation, electron beam irradiation, laser irradiation, swift heavy ion irradiations, thermal induced, and optical induced irradiations, etc. on the various properties of semiconducting nanomaterials. In addition, the irradiation induced defects are also discussed.

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11

Tran Ngoc Lan, Nguyen Tran Thuat, Hoang Ngoc Lam Huong, and Nguyen Van Quynh. "Effects of silver incorporation on electrical and optical properties of CuAlxOy thin films." Journal of Military Science and Technology, FEE (December 23, 2022): 294–302. http://dx.doi.org/10.54939/1859-1043.j.mst.fee.2022.294-302.

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The transparent conductive property based on Ag-doped delafossite nanomaterials are attractive for optical sensing applications due to their good electrical conductivity, good optical transparent and high temperature coefficient of resistance. Several delafossite nanomaterials and Ag-doped nanomaterials have been reported, however, Ag-doped delafossite nanomaterials have not been explored, especially regarding the electrical property with high temperature coefficient of resistance. In this study, Ag-doped delafossite CuAlxOy thin films were deposited by co-sputtering techniques. The electrical properties were carried out on a 4-point prober. The optical properties were characterized on an UV-VIS spectrometer. The results on CuAlxOy doped Ag thin films showed that CuAlxOy doped Ag can be hardly applied for transparent conductive layers. However, these films exhibited relatively high temperature coefficient of resistance of about 3%/K, thus being suitable for applications in microbolometers.

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12

Si, Peng, Nasrin Razmi, Omer Nur, Shipra Solanki, Chandra Mouli Pandey, Rajinder K. Gupta, Bansi D. Malhotra, Magnus Willander, and Adam de la Zerda. "Gold nanomaterials for optical biosensing and bioimaging." Nanoscale Advances 3, no. 10 (2021): 2679–98. http://dx.doi.org/10.1039/d0na00961j.

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13

Ge, Peng. "Study on Optical Properties of Carbon Nanoparticles." Applied Mechanics and Materials 440 (October 2013): 61–63. http://dx.doi.org/10.4028/www.scientific.net/amm.440.61.

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Carbon nanomaterials have generated a tremendous amount of attention in the scientific community. However, little or no attention has been paid to potential uses of carbon nanoparticles as optical properties of carbon nanoparticles in general. In the study reported herein, it shows the functions and properties of aqueous-suspended small carbon nanoparticles with different concentration and size.

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14

Liu, Mingling, Meiling Sun, and Zhijia Wang. "Synthesis, Optical Properties and Applications of Ternary Oxide Nanoparticles by a Microwave Technique." Journal of Nanoscience and Nanotechnology 21, no. 10 (October 1, 2021): 5307–11. http://dx.doi.org/10.1166/jnn.2021.19359.

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Nanocrystal preparation is in high demand due to the development of nanodevices. Nanostructures or microstructures of binary oxides such as TiO2, ZnO, and Al2O3 have been extensively prepared and studied. Synthesis of ternary oxide nanomaterials with controlled structures, morphologies, and sizes are of interest due to their potential applications in nanodevices caused by tunable energy level, bandgap, and structure. In this work, a solution-based method is used to prepare CaWO4 and LaPO4 ternary oxide nanomaterials by microwave technique. Controlled sizes and morphologies including nanorods and microspheres are synthesized by the microwave method, which is believed to be a facile and low-cost technique for the synthesis of ternary oxide nanomaterials. Furthermore, the (relatively) quick process enables high efficiency of the production. The structural and optical properties of the prepared nanomaterials are also investigated in this work. This work benefits nanomaterial synthesis for nanomanufacturing and applications in lighting and photodynamic activations as well as optical storage.

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15

Hanifehpour, Younes, Nazanin Hamnabard, Anita Veettikkunnu Chandran, Sang Woo Joo, and Bong-ki Min. "LnxPb1−xTe(Ln:Nd3+,Yb3+) nanomaterials: Synthesis, characterization, physical properties, and optical properties." Journal of Industrial and Engineering Chemistry 24 (April 2015): 251–58. http://dx.doi.org/10.1016/j.jiec.2014.09.038.

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16

Zachau, M., and A. Konrad. "Nanomaterials for Lighting." Solid State Phenomena 99-100 (July 2004): 13–18. http://dx.doi.org/10.4028/www.scientific.net/ssp.99-100.13.

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Luminescent and non-luminescent nano materials are used today in a variety of lighting applications. One example is the thin layer of densely packed nano alumina between glass and phosphor in fluorescent lamps that serves to increase the efficiency, to improve the maintenance and to reduce the mercury consumption of the lamps. Further, non-luminescent nano materials may be used to form a thin conformal coating around phosphor particles that protects the phosphor particles and improves the efficiency and maintenance of fluorescent lamps. Luminescent nano materials have been the subject of extensive research in the last 15 years. For particle sizes below 20 nm, the optical properties of nano phosphors change, e.g. the exciton energy increases and perhaps even more important, scattering decreases. We have synthesized nano Y2O3:Eu of particle sizes down to 10 nm, derived its optical properties, and investigated its use in Hg-free fluorescent lamps based on the Xe-excimer discharge. The possibility of using nano phosphors, e.g. semiconducting nano phosphors as CdSe or rare-earth doped phosphors as LaPO4:RE in LEDs, will be discussed.

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17

Ling, Chuo Ann, Shahrom Mahmud, Khadijah Mohd Bakhori Siti, Sirelkhatim Amna, Mohamad Dasmawati, Hasan Habsah, Seeni Azman, and Abdul Rahman Rosliza. "Optical Properties and Antibacterial Bioactivity of ZnO Nanopowder Annealed in Different Ambient." Advanced Materials Research 626 (December 2012): 324–28. http://dx.doi.org/10.4028/www.scientific.net/amr.626.324.

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Nanomaterials have attracted much attention for their unique properties and promising performance compared to macroscopic materials. Nanotechnology refer to the cutting-edge approach of synthesis and modification of nanomaterials whose structures exhibit novel and improved physical, chemical, biological properties and functionality due to their nanoscaled size [1-2]. The ongoing revolution of the technology has imposed significant impact into several areas of biomedical research and engineering applications. Among the biomedical application include nanoparticle drug delivery, cell imaging, and cancer therapy.

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18

Lin, Huo Yang. "Communication Transmission Device Based on New Nano Material." Advanced Materials Research 722 (July 2013): 9–12. http://dx.doi.org/10.4028/www.scientific.net/amr.722.9.

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Nanomaterials is an important part of the whole field of nanoscience and nanotechnology, which involves the structure, properties and applications of nanomaterials, nanomaterials preparation technology and its detection means. All the individual nanoresearch areas, such as nanoelectronics, nanochemistry and nanobiology are all involved in the study of nanomaterials. This article briefly describes the electrical, optical and optoelectronic properties of nanomaterials, and elaborates the application of New nanomaterials in communication transmission, which is designed to strengthen the exchange of learning.

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19

Agnello, Simonpietro, and Fabrizio Messina. "Optical and Electronic Properties of Carbon-Based Nanomaterials and Composites." C — Journal of Carbon Research 6, no. 2 (May 29, 2020): 36. http://dx.doi.org/10.3390/c6020036.

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20

Zhu, Yun-Pei, Jie Li, Tian-Yi Ma, Yu-Ping Liu, Gaohui Du, and Zhong-Yong Yuan. "Sonochemistry-assisted synthesis and optical properties of mesoporous ZnS nanomaterials." J. Mater. Chem. A 2, no. 4 (2014): 1093–101. http://dx.doi.org/10.1039/c3ta13636a.

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21

Uday Kumar, M., R. Swetha, and Latha Kumari. "Synthesis, structure and optical properties of Indium filled CoSb3 nanomaterials." Journal of Physics: Conference Series 1495 (March 2020): 012006. http://dx.doi.org/10.1088/1742-6596/1495/1/012006.

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22

Huong, Tran Thu, Nguyen Thanh Huong, Lam Thi Kieu Giang, Tran Kim Anh, Witold Lojkowski, and Le Quoc Minh. "Preparation, characterization and optical properties of ZrO2:Er3+, Yb3+nanomaterials." Journal of Physics: Conference Series 187 (September 1, 2009): 012082. http://dx.doi.org/10.1088/1742-6596/187/1/012082.

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23

Chang, Haixin, and Hongkai Wu. "Graphene-Based Nanomaterials: Synthesis, Properties, and Optical and Optoelectronic Applications." Advanced Functional Materials 23, no. 16 (November 19, 2012): 1984–97. http://dx.doi.org/10.1002/adfm.201202460.

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24

Tripathi, S. K., Ramneek Kaur, and Mamta Rani. "Oxide Nanomaterials and their Applications as a Memristor." Solid State Phenomena 222 (November 2014): 67–97. http://dx.doi.org/10.4028/www.scientific.net/ssp.222.67.

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Nowadays, oxide nanomaterials have received great attention due to their unique semiconducting, optical and electrical properties. Oxide nanomaterials exhibit these properties due to their small size, high surface area to volume ratio and great biocompatibility. The chemical activity of the oxide nanomaterials is highly enhanced by the presence of oxygen vacancies in these materials. This review article outlined the unique properties, synthesis techniques and applications of oxide nanomaterials.The important and unique properties of TiO2and ZnO nanomaterials with their possible crystal structures have been discussed. In application part, the oxide nanomaterials especially ZnO has been discussed for memory device applications. To control the performance of oxide nanomaterials for memristor device application, a better understanding of their properties is required.Table of Contents

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25

Tetley, Teresa D., and Andrew J. Thorley. "Health effects of nanomaterials." Biochemist 35, no. 1 (February 1, 2013): 14–20. http://dx.doi.org/10.1042/bio03501014.

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Nanotechnology is a relatively new discipline which is growing rapidly and is used in a broad-spectrum of applications such as engineering, medicine, cosmetics, sports goods and textiles. The number of consumer products that employ nanotechnology is steadily increasing. Nanomaterials have novel and diverse properties very different to those of the same materials on a macroscopic scale, exhibiting unique optical, electronic and magnetic properties. Not surprising then that these engineered materials are being used to create new products and applications, and to improve existing products.

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26

Marfin, Yu S., S. D. Usoltsev, A. V. Kazak, O. S. Vodyanova, N. E. Novikova, I. A. Verin, E. V. Rumyantsev, I. V. Kholodkov, and D. A. Merkushev. "Supramolecular organization and optical properties of BODIPY derivatives in Langmuir–Schaefer films." New Journal of Chemistry 44, no. 44 (2020): 19046–53. http://dx.doi.org/10.1039/d0nj02855j.

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27

Li, Muyang, Ragini Singh, Yiran Wang, Carlos Marques, Bingyuan Zhang, and Santosh Kumar. "Advances in Novel Nanomaterial-Based Optical Fiber Biosensors—A Review." Biosensors 12, no. 10 (October 8, 2022): 843. http://dx.doi.org/10.3390/bios12100843.

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This article presents a concise summary of current advancements in novel nanomaterial-based optical fiber biosensors. The beneficial optical and biological properties of nanomaterials, such as nanoparticle size-dependent signal amplification, plasmon resonance, and charge-transfer capabilities, are widely used in biosensing applications. Due to the biocompatibility and bioreceptor combination, the nanomaterials enhance the sensitivity, limit of detection, specificity, and response time of sensing probes, as well as the signal-to-noise ratio of fiber optic biosensing platforms. This has established a practical method for improving the performance of fiber optic biosensors. With the aforementioned outstanding nanomaterial properties, the development of fiber optic biosensors has been efficiently promoted. This paper reviews the application of numerous novel nanomaterials in the field of optical fiber biosensing and provides a brief explanation of the fiber sensing mechanism.

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28

Dengler, Stefanie, and Bernd Eberle. "Investigations on the Nonlinear Optical Properties of 0D, 1D, and 2D Boron Nitride Nanomaterials in the Visible Spectral Region." Nanomaterials 13, no. 12 (June 13, 2023): 1849. http://dx.doi.org/10.3390/nano13121849.

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In recent years, boron nitride nanomaterials have attracted increasing attention due to their unique properties such as high temperature stability and high thermal conductivity. They are structurally analogous to carbon nanomaterials and can also be generated as zero-dimensional nanoparticles and fullerenes, one-dimensional nanotubes and nanoribbons, and two-dimensional nanosheets or platelets. In contrast to carbon-based nanomaterials, which have been extensively studied during recent years, the optical limiting properties of boron nitride nanomaterials have hardly been analysed so far. This work summarises a comprehensive study on the nonlinear optical response of dispersed boron nitride nanotubes, boron nitride nanoplatelets, and boron nitride nanoparticles using nanosecond laser pulses at 532 nm. Their optical limiting behaviour is characterised by means of nonlinear transmittance and scattered energy measurements and a beam profiling camera is used to analyse the beam characteristics of the transmitted laser radiation. Our results show that nonlinear scattering dominates the OL performance of all measured boron nitride nanomaterials. Boron nitride nanotubes show a large optical limiting effect, much stronger than the benchmark material, multi-walled carbon nanotubes, which makes them promising for laser protection applications.

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29

Shimakawa, Koichi. "Electrical properties of nanocrystalline media: Optical conductivity and non-Drude behavior in the terahertz frequency range." Canadian Journal of Physics 92, no. 7/8 (July 2014): 696–99. http://dx.doi.org/10.1139/cjp-2013-0553.

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It is known that deviation from the Drude law is dramatic in most electronically conductive nanomaterials. A brief review of this topic is given, and it is shown that a series sequence of transport involving grains and grain boundaries produces a type of Lorentz resonance (non-Drude behavior) in nanomaterials. The physical parameters deduced from this model are reasonably good.

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30

Paredes, Patricio, Erwan Rauwel, and Protima Rauwel. "Surveying the Synthesis, Optical Properties and Photocatalytic Activity of Cu3N Nanomaterials." Nanomaterials 12, no. 13 (June 28, 2022): 2218. http://dx.doi.org/10.3390/nano12132218.

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This review addresses the most recent advances in the synthesis approaches, fundamental properties and photocatalytic activity of Cu3N nanostructures. Herein, the effect of synthesis conditions, such as solvent, temperature, time and precursor on the precipitation of Cu3N and the formation of secondary phases of Cu and Cu2O are surveyed, with emphasis on shape and size control. Furthermore, Cu3N nanostructures possess excellent optical properties, including a narrow bandgap in the range of 0.2 eV–2 eV for visible light absorption. In that regard, understanding the effect of the electronic structure on the bandgap and on the optical properties of Cu3N is therefore of interest. In fact, the density of states in the d-band of Cu has an influence on the band gap of Cu3N. Moreover, the potential of Cu3N nanomaterials for photocatalytic dye-degradation originates from the presence of active sites, i.e., Cu and N vacancies on the surface of the nanoparticles. Plasmonic nanoparticles tend to enhance the efficiency of photocatalytic dye degradation of Cu3N. Nevertheless, combining them with other potent photocatalysts, such as TiO2 and MoS2, augments the efficiency to 99%. Finally, the review concludes with perspectives and future research opportunities for Cu3N-based nanostructures.

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31

Fidelus, Janusz D., Witold Łojkowski, Donats Millers, Larisa Grigorjeva, Krishjanis Smits, and Robert R. Piticescu. "Zirconia Based Nanomaterials for Oxygen Sensors – Generation, Characterisation and Optical Properties." Solid State Phenomena 128 (October 2007): 141–50. http://dx.doi.org/10.4028/www.scientific.net/ssp.128.141.

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Microwave driven hydrothermal synthesis and hydrothermal synthesis were used to obtain ZrO2 nanopowders. Their production with varying phase composition, the characterisation and selected optical properties concerning their potential use as luminescence oxygen sensors are reported. It was found that the powders obtained by the microwave driven hydrothermal method and annealed at 750 0C in air show experiment repeatability within an accuracy of 6 %.

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32

John, Bincy, G. Genifer Silvena, and A. Leo Rajesh. "THE POST ANNEALED EFFECT ON THE OPTICAL PROPERTIES OF Cu2ZnSnS4 NANOMATERIALS." International Journal on Applied Bio-Engineering 9, no. 2 (2015): 49–53. http://dx.doi.org/10.18000/ijabeg.10136.

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33

Fadil, Dalal, Ridwan H. Fayaz, and Anupama B. Kaul. "Electronic and Optical Properties Characterization of MoS2 Two-Dimensional Exfoliated nanomaterials." MRS Advances 1, no. 47 (2016): 3223–28. http://dx.doi.org/10.1557/adv.2016.523.

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ABSTRACTFor optoelectronic application, two-dimensional materials such as molybdenum disulfide (MoS2) are very promising candidate with their interesting electronic and optical properties. The layered structure of these materials makes them amenable to mechanical exfoliation to form scalable 2D atomic crystals. For width range of applications, liquid phase exfoliation using sonication and centrifugation in appropriate solvent is needed. This simple and scalable technique gives high quality of exfoliation of 2D materials without chemical reactions. In this paper, we report an example of the optical and electronic characterizations on MoS2 synthesized by liquid exfoliation in specific solvent.

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34

CUI, QiuHong, YongSheng ZHAO, and JianNian YAO. "Optical properties of one-dimensional nanomaterials based on small organic molecules." SCIENTIA SINICA Chimica 41, no. 8 (August 1, 2011): 1240–56. http://dx.doi.org/10.1360/032011-184.

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35

Zhang, Xuanyu, Xian Gao, Guotao Pang, Tingchao He, Guichuan Xing, and Rui Chen. "Effects of Material Dimensionality on the Optical Properties of CsPbBr3 Nanomaterials." Journal of Physical Chemistry C 123, no. 47 (November 4, 2019): 28893–97. http://dx.doi.org/10.1021/acs.jpcc.9b08606.

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36

Diroll, Benjamin T., Matthew S. Kirschner, Peijun Guo, and Richard D. Schaller. "Optical and Physical Probing of Thermal Processes in Semiconductor and Plasmonic Nanocrystals." Annual Review of Physical Chemistry 70, no. 1 (June 14, 2019): 353–77. http://dx.doi.org/10.1146/annurev-physchem-042018-052639.

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This article reviews thermal properties of semiconductor and emergent plasmonic nanomaterials, focusing on mechanisms through which hot carriers and phonons are produced and dissipated as well as the related impacts on optoelectronic properties. Elevated equilibrium temperatures, of particular relevance for implementation of nanomaterials in devices, affect absorptive and radiative transitions as well as emission efficiency that can present reversible and irreversible changes with temperature. In noble metal or doped semiconductor/insulator nanomaterials, hot carriers and lattice heating can substantially influence localized surface plasmon resonances and yield large ultrafast changes in transmission or strongly oscillatory coherences. Transient optical and diffraction characterizations enable nonequilibrium investigations of phonon dynamics and cooling such as lattice expansion and crystal phase stability. Timescales of nanoparticle thermalization with surroundings and transport of heat within films of such materials are also discussed.

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37

Abu Owida, Hamza, Nidal M. Turab, and Jamal Al-Nabulsi. "Carbon nanomaterials advancements for biomedical applications." Bulletin of Electrical Engineering and Informatics 12, no. 2 (April 1, 2023): 891–901. http://dx.doi.org/10.11591/eei.v12i2.4310.

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The development of new technologies has helped tremendously in delivering timely, appropriate, acceptable, and reasonably priced medical treatment. Because of developments in nanoscience, a new class of nanostructures has emerged. Nanomaterials, because of their small size, display exceptional physio-chemical capabilities such as enhanced absorption and reactivity, increased surface area, molar extinction coefficients, tunable characteristics, quantum effects, and magnetic and optical properties. Researchers are interested in carbon-based nanomaterials due to their unique chemical and physical properties, which vary in thermodynamic, biomechanical, electrical, optical, and structural aspects. Due to their inherent properties, carbon nanomaterials, including fullerenes, graphene, carbon nanotubes (CNTs), and carbon nanofibers (CNFs), have been intensively studied for biomedical applications. This article is a review of the most recent findings about the development of carbon-based nanomaterials for use in biosensing, drug delivery, and cancer therapy, among other things.

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38

Qu, Juntian, and Xinyu Liu. "Recent Advances on SEM-Based In Situ Multiphysical Characterization of Nanomaterials." Scanning 2021 (June 9, 2021): 1–16. http://dx.doi.org/10.1155/2021/4426254.

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Functional nanomaterials possess exceptional mechanical, electrical, and optical properties which have significantly benefited their diverse applications to a variety of scientific and engineering problems. In order to fully understand their characteristics and further guide their synthesis and device application, the multiphysical properties of these nanomaterials need to be characterized accurately and efficiently. Among various experimental tools for nanomaterial characterization, scanning electron microscopy- (SEM-) based platforms provide merits of high imaging resolution, accuracy and stability, well-controlled testing conditions, and the compatibility with other high-resolution material characterization techniques (e.g., atomic force microscopy), thus, various SEM-enabled techniques have been well developed for characterizing the multiphysical properties of nanomaterials. In this review, we summarize existing SEM-based platforms for nanomaterial multiphysical (mechanical, electrical, and electromechanical) in situ characterization, outline critical experimental challenges for nanomaterial optical characterization in SEM, and discuss potential demands of the SEM-based platforms to characterizing multiphysical properties of the nanomaterials.

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39

Upadhyay, S. B., and P. P. Sahay. "Structure, Optical and Formaldehyde Sensing Properties of Co-Precipitated Fe-Doped WO3 Nanomaterials." Nano 10, no. 08 (November 23, 2015): 1550113. http://dx.doi.org/10.1142/s1793292015501131.

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Co-precipitated undoped and Fe-doped WO3 nanomaterials have been investigated by X-ray diffraction, Raman spectroscopy and scanning electron microscopy in order to study the influence of Fe doping in their structural and morphological properties. The synthesized WO3 nanomaterials have been found to possess monoclinic structure having average crystallite sizes 15–20[Formula: see text]nm. The diffuse reflectance spectroscopy shows the optical bandgap [Formula: see text]2.85[Formula: see text]eV. The 1.8 at.% Fe-doped WO3 exhibits selective high response to formaldehyde over methanol, ethanol, propan-2-ol and acetone. It exhibits the maximum response ([Formula: see text]80%) to formaldehyde at the operating temperature of 225[Formula: see text]C for 50[Formula: see text]ppm concentration in air.

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40

Duyen, Pham Thi Hong, and Anh Tien Nguyen. "Optical and magnetic properties of orthoferrite NdFeO3 nanomaterials synthesized by simple co-precipitation method." Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases 23, no. 4 (November 24, 2021): 600–606. http://dx.doi.org/10.17308/kcmf.2021.23/3680.

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In this work, orthoferrite NdFeO3 nanomaterials with particle sizes 20-40 nm have been successfully synthesized via a simple co-precipitation method through the hydrolysis of Nd (III) and Fe (III) cations in hot water with 5% NaOH as a precipitating agent. Single-phase NdFeO3 was generated after calcination of the as-prepared powder at 700, 800, and 900 °C for 1 hour. The UV-Vis spectra at room temperature presented strong absorption in the UV-Vis regions (l = 200–400 nm and 400–600 nm) with small band gap energy (Eg = 2.2÷2.5 eV). The obtained NdFeO3 nanomaterials exhibited a hard ferromagnetic behavior with high coercivity (Hc = 600–1600 Oe).

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Wu, Sainan, Xiao Wei, Hao Li, Honglei Shen, Jiaojiao Han, Xi Kang, and Manzhou Zhu. "Ligand Effects on Intramolecular Configuration, Intermolecular Packing, and Optical Properties of Metal Nanoclusters." Nanomaterials 11, no. 10 (October 9, 2021): 2655. http://dx.doi.org/10.3390/nano11102655.

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Surface modification has served as an efficient approach to dictate nanocluster structures and properties. In this work, based on an Ag22 nanocluster template, the effects of surface modification on intracluster constructions and intercluster packing modes, as well as the properties of nanoclusters or cluster-based crystallographic assemblies have been investigated. On the molecular level, the Ag22 nanocluster with larger surface steric hindrance was inclined to absorb more small-steric chlorine but less bulky thiol ligands on its surface. On the supramolecular level, the regulation of intramolecular and intermolecular interactions in nanocluster crystallographic assemblies rendered them CIEE (crystallization-induced emission enhancement)-active or -inactive nanomaterials. This study has some innovation in the molecular and intramolecular tailoring of metal nanoclusters, which is significant for the preparation of new cluster-based nanomaterials with customized structures and enhanced performances.

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Munyebvu, Neal, Julia Nette, Stavros Stavrakis, Philip D. Howes, and Andrew J. DeMello. "Transforming Nanomaterial Synthesis with Flow Chemistry." CHIMIA 77, no. 5 (May 31, 2023): 312. http://dx.doi.org/10.2533/chimia.2023.312.

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Microfluidic methods for the synthesis of nanomaterials allow the generation of high-quality products with outstanding structural, electronic and optical properties. At a fundamental level, this is engendered by the ability to control both heat and mass transfer in a rapid and precise manner, but also by the facile integration of in-line characterization tools and machine learning algorithms. Such integrated platforms provide for exquisite control over material properties during synthesis, accelerate the optimization of electronic and optical properties and bestow new insights into the optoelectronic properties of nanomaterials. Herein, we present a brief perspective on the role that microfluidic technologies can play in nanomaterial synthesis, with a particular focus on recent studies that incorporate in-line optical characterization and machine learning. We also consider the importance and challenges associated with integrating additional functional components within experimental workflows and the upscaling of microfluidic platforms for production of industrial-scale quantities of nanomaterials.

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Koryakina, Irina, S. Bikmetova, K. Arabuli, A. Evstrapov, A. Pushkarev, S. Makarov, and M. V. Zyuzin. "Continuous-Flow Synthesis of Perovskite Particles for Optical Application." Journal of Physics: Conference Series 2015, no. 1 (November 1, 2021): 012072. http://dx.doi.org/10.1088/1742-6596/2015/1/012072.

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Abstract Conventional chemical synthesis methods for nanomaterials fabrication do not always provide precise reproducible synthesis with controllable physicochemical parameters. A better control over the resultant properties of nanomaterials can be achieved by scaling down the synthesis approach to the microlevel. This can be realized by means of microfluidics. In this work, a microfluidic approach is applied for the controllable synthesis of perovskite particles with defined cubic morphology. The structural characterization of perovskite particles is performed using scanning electron microscopy and X-ray diffraction. All the synthesized particles demonstrate photoluminescence.

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LV Shao-zhe, 吕少哲, 张家骅 ZHANG Jia-hua, 张继森 ZHANG Ji-sen, 鄂书林 E Shu-lin, 骆永石 LUO Yong-shi, and 赵海峰 ZHAO Hai-feng. "Synthesis and Spectroscopy Properties of La3PO7∶Eu3+Nanomaterials." Chinese Journal of Luminescence 33, no. 4 (2012): 366–70. http://dx.doi.org/10.3788/fgxb20123304.0366.

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Wang, Li-Yuan, Meng-Qi Wang, Cheng-Bao Yao, Hai-Tao Yin, Xiao-Jie Liu, and Bing-Yin Shi. "Two-step strategy, growth mechanism and optical properties of plasmonic Ag-modified ZnO nanomaterials." RSC Advances 12, no. 5 (2022): 3013–26. http://dx.doi.org/10.1039/d1ra09457b.

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Fakhouri, Hussein, Martina Perić, Franck Bertorelle, Philippe Dugourd, Xavier Dagany, Isabelle Russier-Antoine, Pierre-François Brevet, Vlasta Bonačić-Koutecký, and Rodolphe Antoine. "Sub-100 nanometer silver doped gold–cysteine supramolecular assemblies with enhanced nonlinear optical properties." Physical Chemistry Chemical Physics 21, no. 23 (2019): 12091–99. http://dx.doi.org/10.1039/c9cp00829b.

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Wang Xinda, 王欣达, 廖嘉宁 Liao Jianing, 姚煜 Yao Yu, 郭伟 Guo Wei, 康慧 Kang Hui, and 彭鹏 Peng Peng. "Nanojoining and Electrical Properties of Silver Nanomaterials." Chinese Journal of Lasers 48, no. 8 (2021): 0802016. http://dx.doi.org/10.3788/cjl202148.0802016.

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Ansari, Mohammad Omaish, Kalamegam Gauthaman, Abdurahman Essa, Sidi A. Bencherif, and Adnan Memic. "Graphene and Graphene-Based Materials in Biomedical Applications." Current Medicinal Chemistry 26, no. 38 (January 3, 2019): 6834–50. http://dx.doi.org/10.2174/0929867326666190705155854.

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: Nanobiotechnology has huge potential in the field of regenerative medicine. One of the main drivers has been the development of novel nanomaterials. One developing class of materials is graphene and its derivatives recognized for their novel properties present on the nanoscale. In particular, graphene and graphene-based nanomaterials have been shown to have excellent electrical, mechanical, optical and thermal properties. Due to these unique properties coupled with the ability to tune their biocompatibility, these nanomaterials have been propelled for various applications. Most recently, these two-dimensional nanomaterials have been widely recognized for their utility in biomedical research. In this review, a brief overview of the strategies to synthesize graphene and its derivatives are discussed. Next, the biocompatibility profile of these nanomaterials as a precursor to their biomedical application is reviewed. Finally, recent applications of graphene-based nanomaterials in various biomedical fields including tissue engineering, drug and gene delivery, biosensing and bioimaging as well as other biorelated studies are highlighted.

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Schrittwieser, Stefan, Michael J. Haslinger, Tina Mitteramskogler, Michael Mühlberger, Astrit Shoshi, Hubert Brückl, Martin Bauch, Theodoros Dimopoulos, Barbara Schmid, and Joerg Schotter. "Multifunctional Nanostructures and Nanopocket Particles Fabricated by Nanoimprint Lithography." Nanomaterials 9, no. 12 (December 16, 2019): 1790. http://dx.doi.org/10.3390/nano9121790.

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Nanostructured surfaces and nanoparticles are already widely employed in many different fields of research, and there is an ever-growing demand for reliable, reproducible and scalable nanofabrication methods. This is especially valid for multifunctional nanomaterials with physical properties that are tailored for specific applications. Here, we report on the fabrication of two types of nanomaterials. Specifically, we present surfaces comprising a highly uniform array of elliptical pillars as well as nanoparticles with the shape of nanopockets, possessing nano-cavities. The structures are fabricated by nanoimprint lithography, physical and wet-chemical etching and sputter deposition of thin films of various materials to achieve a multifunctional nanomaterial with defined optical and magnetic properties. We show that the nanopockets can be transferred to solution, yielding a nanoparticle dispersion. All fabrication steps are carefully characterized by microscopic and optical methods. Additionally, we show optical simulation results that are in good agreement with the experimentally obtained data. Thus, this versatile method allows to fabricate nanomaterials with specific tailor-made physical properties that can be designed by modelling prior to the actual fabrication process. Finally, we discuss possible application areas of these nanomaterials, which range from biology and medicine to electronics, photovoltaics and photocatalysis.

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SIRGHIE, Alexandru, Mihai OPROESCU, Gabriel Vasile IANA, and Adriana Gabriela PLAIASU. "Nanostructured materials for CBRNdetection." University of Pitesti. Scientific Bulletin - Automotive Series 30, no. 1 (November 1, 2020): 1–8. http://dx.doi.org/10.26825/bup.ar.2020.009.

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Nanomaterials are gaining significance in technological applications due to their chemical, physical, and mechanical properties and enhanced performance when compared with their bulkier counterparts. The synthesis of nanostructured materials has led to a significant increase in properties (thermal, optical, electrical, magnetic, mechanical) as well as the discovery of materials with new properties due the fact that at the nanoscale the materials have a high surface area Most applications of nanomaterials in sensors are related to their synthesis. In this paper we report recent trends in applications of various nanomaterials such as nanoparticles, carbon nanotubes, nanowires andgraphene to detect CBRN agents.

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