Bibliographies thématiques / FABRICATING MONOLAYER

Littérature scientifique sur le sujet « FABRICATING MONOLAYER »

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Publié le 11 septembre 2023

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Articles de revues sur le sujet "FABRICATING MONOLAYER"

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Zhang, Ting, Jun Qian, Xinlin Tuo, Jun Yuan et Xiaogong Wang. « Fabricating ordered porous monolayers from colloidal monolayer and multilayer ». Colloids and Surfaces A : Physicochemical and Engineering Aspects 335, no 1-3 (mars 2009) : 202–6. http://dx.doi.org/10.1016/j.colsurfa.2008.11.022.

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Chi, Xiannian, Jian Zhang, Jean Pierre Nshimiyimana, Xiao Hu, Pei Wu, Siyu Liu, Jia Liu, Weiguo Chu et Lianfeng Sun. « Wettability of monolayer graphene/single-walled carbon nanotube hybrid films ». RSC Adv. 7, no 76 (2017) : 48184–88. http://dx.doi.org/10.1039/c7ra09934g.

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Lei, Leyan, Xin Tang, Pingan Zhu, Zhanxiao Kang, Tiantian Kong et Liqiu Wang. « Spreading-induced dewetting for monolayer colloidosomes with responsive permeability ». Journal of Materials Chemistry B 5, no 30 (2017) : 6034–41. http://dx.doi.org/10.1039/c7tb01255a.

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Zhou, Jun, Xiaoqing Cao, Linlin Li, Xingcheng Cui et Yu Fu. « A Novel Strategy for Fabricating a Strong Nanoparticle Monolayer and Its Enhanced Mechanism ». Nanomaterials 9, no 10 (16 octobre 2019) : 1468. http://dx.doi.org/10.3390/nano9101468.

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This work presents the preparation of cross-linking Au nanoparticle (NP) monolayer membranes by the thiol exchange reaction and their enhanced mechanical properties. Dithiol molecules were used as a cross-linking mediator to connect the adjacent nanoparticles by replacing the original alkanethiol ligand in the monolayer. After cross-linking, the membrane integrity was maintained and no significant fracture was observed, which is crucial for the membrane serving as a nanodevice. TEM (Transmission Electron Microscopy), UV–Vis absorption spectrum, and GISAXS (grazing incidence small angle X-ray scattering) were performed to characterize the nanostructure before and after cross-linking. All results proved that the interparticle distance in the monolayer was controllably changed by using dithiols of different lengths as the cross-linking agent. Moreover, the modulus of the cross-linking monolayer was measured by atomic force microscopy (AFM) and the result showed that the membrane with a longer dithiol molecule had a larger modulus, which might derive from the unbroken and intact structure of the cross-linking monolayer due to the selected appropriately lengthed dithiol. This study provides a new way of producing a nanoparticle monolayer membrane with enhanced mechanical properties.
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OH, SE YOUNG, HANG SOK JIE, HYUNG SEOK CHOI et JEONG WOO CHOI. « DEEP UV PHOTOPATTERNING OF SELF-ASSEMBLED MONOLAYER AND ITS APPLICATION IN BIOELECTRONIC DEVICE ». International Journal of Nanoscience 01, no 05n06 (octobre 2002) : 611–16. http://dx.doi.org/10.1142/s0219581x02000759.

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The photopatterning process of self-assembled monolayer has been used as template for fabricating biomolecular microstructures. Alkanethiolates formed by the adsorption of 1-octanethiol molecules on a gold substrate were oxidized by the irradiation of deep UV light and then developed with deionized water. The resulting positive patterned substrate was immersed into a dilute ethanolic solution of 11-mercaptoundecanoic acid (11-MUDA). Cytochrome c monolayers were immobilized onto the patterned gold substrate by self-assembly technique and their electrochemical properties were investigated through the measurements of cyclic voltammetry. Also, I–V characteristics of biomolecular multilayers consisting of cytochrome c and green fluorescent protein (GFP) were studied with a scanning tunneling microscope (STM).
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Borodin, Bogdan R., Fedor A. Benimetskiy, Valery Yu Davydov, Alexander N. Smirnov, Ilya A. Eliseyev et Prokhor A. Alekseev. « Photoluminescence enhancement in multilayered MoSe2 nanostructures obtained by local anodic oxidation ». 2D Materials 9, no 1 (12 novembre 2021) : 015010. http://dx.doi.org/10.1088/2053-1583/ac325a.

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Abstract Monolayers of transition metal dichalcogenides (TMDCs) exhibit attractive properties and are promising for fabricating photonic and optoelectronic devices, while bulk multilayered structures based on the same materials only recently has revealed many properties useful for nanophotonics. In this regard, the combination of monolayer and multilayer properties in one device (on a single flake) is an important and fruitful task that needs to be solved. In this work, we demonstrate the use of local anodic oxidation to improve the optical properties of multilayer MoSe2 flakes on a gold-covered substrate. Using this method, we fabricated nanostructures demonstrating extraordinarily enhanced photoluminescence (PL), with an intensity up to three orders of magnitude compared to that of the original structure. Low-frequency Raman spectroscopy showed that the nature of this PL enhancement is that the bindings between the layers inside the nanostructures are severely disrupted. This means that the nanostructures consist of quasi-monolayers, which is in good agreement with the intensity and the position of PL peak. Here, we also propose a mechanism of forming these quasi-monolayers. Therefore, this method allows using multilayer TMDC flakes on a conductive substrate to fabricate areas with quasi-monolayer optical properties, exhibiting an enhanced PL intensity.
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Zhou, Fu Fang, Qing Lan Ma, Yuan Ming Huang, Zhuo Ran She et Chun Xu Pan. « Effects of Phosphoric Acid on the Photovoltaic Properties of Photovoltaic Cells with Laminated Polypyrrole-Fullerene Layers ». Materials Science Forum 663-665 (novembre 2010) : 861–64. http://dx.doi.org/10.4028/www.scientific.net/msf.663-665.861.

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By applying phosphoric acid in dispersion of fullerene in the fabrication of polypyrrolefullerene photovoltaic cells we present laminated active structure of polypyrrole and subsequent fullerene layers, with two other reference methods to incorporate fullerene: (i) in a physically blended monolayer; and (ii) in a blend from chemical reaction. I-V characteristics show that a blend monolayer cell can display photosensitive effect however without photovoltaics; a bilayer cell displays photovoltaics either in dark or in illumination, with its VOC up to1V and its JSC up to12.5 μA cm-2 under AM1 105 mW cm-2 condition. The results demonstrate that phosphoric acid is effective in dispersion of fullerene as well as combining it with polypyrrole layer in a photovoltaic cell. The effects of phosphoric acid in fabricating a bilayered photovoltaic cell are discussed mainly in terms of H-bonding.
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Balderas-Valadez, R. F., V. Agarwal et C. Pacholski. « Fabrication of porous silicon-based optical sensors using metal-assisted chemical etching ». RSC Advances 6, no 26 (2016) : 21430–34. http://dx.doi.org/10.1039/c5ra26816h.

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Metal-assisted chemical etching was exploited for fabricating a porous silicon double beam interferometer composed of pillars with large pores on top of a monolayer with smaller pores which can act as a sensing and reference channel, respectively.
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Li, Man, Qiang Ma, Wei Zi, Xiaojing Liu, Xuejie Zhu et Shengzhong (Frank) Liu. « Pt monolayer coating on complex network substrate with high catalytic activity for the hydrogen evolution reaction ». Science Advances 1, no 8 (septembre 2015) : e1400268. http://dx.doi.org/10.1126/sciadv.1400268.

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A deposition process has been developed to fabricate a complete-monolayer Pt coating on a large-surface-area three-dimensional (3D) Ni foam substrate using a buffer layer (Ag or Au) strategy. The quartz crystal microbalance, current density analysis, cyclic voltammetry integration, and X-ray photoelectron spectroscopy results show that the monolayer deposition process accomplishes full coverage on the substrate and the deposition can be controlled to a single atomic layer thickness. To our knowledge, this is the first report on a complete-monolayer Pt coating on a 3D bulk substrate with complex fine structures; all prior literature reported on submonolayer or incomplete-monolayer coating. A thin underlayer of Ag or Au is found to be necessary to cover a very reactive Ni substrate to ensure complete-monolayer Pt coverage; otherwise, only an incomplete monolayer is formed. Moreover, the Pt monolayer is found to work as well as a thick Pt film for catalytic reactions. This development may pave a way to fabricating a high-activity Pt catalyst with minimal Pt usage.
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Milyutin, Yana, Manal Abud-Hawa, Viki Kloper-Weidenfeld, Elias Mansour, Yoav Y. Broza, Gidi Shani et Hossam Haick. « Fabricating and printing chemiresistors based on monolayer-capped metal nanoparticles ». Nature Protocols 16, no 6 (19 mai 2021) : 2968–90. http://dx.doi.org/10.1038/s41596-021-00528-y.

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Thèses sur le sujet "FABRICATING MONOLAYER"

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McCoy, Kendra Michele. « Surface monolayer initiated polymerization a novel means of fabricating sub-100nm features / ». Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-04122004-094757/unrestricted/mccoy%5Fkendra%5Fm%5F200405%5Fphd.pdf.

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Thesis (Ph. D.)--Chemical Engineering, Georgia Institute of Technology, 2004.
Clifford L. Henderson, Committee Chair ; Peter Ludovice, Committee Member ; Laren Tolbert, Committee Member ; Dennis Hess, Committee Member ; W. Brent Carter, Committee Member. Includes bibliographical references (leaves 119-128).
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McCoy, Kendra Michele. « Surface Monolayer Initiated Polymerization : A Novel Means of Fabricating Sub - 100 nm Features ». Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5232.

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The speed of microelectronic devices is controlled by the size of the transistor gate. In order to create faster devices, the size of this transistor gate must shrink. Microlithography is the method used to define patterns in semiconductor devices, and it is optimized periodically to create smaller features. It is a subtractive process that relies on the selective removal of sections of a photosensitive polymeric film called photoresist. This photoresist is exposed to patterned ultraviolet radiation that changes the local solubility of the film and allows for the creation of relief patterns in the resist using a developing solvent. Decreasing the wavelength of the light used to expose the patterns is the primary method for decreasing the minimum feature size that can be printed by this process. There are a number of challenges associated with decreasing the exposure wavelength for conventional lithographic processes. First of all, the polymeric films must be transparent at the exposure wavelength in order to allow light to propagate through the entire thickness of the film. Secondly, there is a limit in the thickness of the photoresist films that can be used. This thickness limits the etch resistance of the film. In fact, the issues concerning etch resistance and transparency are generally in opposition. This makes designing photoresist platforms for future lithographic applications very difficult. Therefore, to overcome these limitations, we are developing an unconventional approach to microlithography. In our approach, entitled Surface Monolayer Initiated Polymerization, polymer structures are formed on a surface by polymerizing a monomer in a patterned fashion using a self-assembled monolayer that can be locally activated to initiate the reaction. This process has been demonstrated by creating patterned polystyrene films on native silicon dioxide surfaces. In these initial studies, it took more than one day to create features. This is unacceptable for a lithographic application. The kinetics of all the processes involved in making these patterned layers is described. Along with these rate constants, means of optimizing these rates are also presented. Additionally, the patterns grown in these initial studies exhibited poor uniformity. Methods of optimizing the patterns formed are also presented.
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Shen, Cai. « Self-assembled monolayers of thiolates as templates for micro/nano fabrication ». Thesis, St Andrews, 2008. http://hdl.handle.net/10023/603.

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Yang, Jeong Hyeon. « Fabrication of gold nanoparticle array on micro-nano structrued self-assembled monolayers ». 京都大学 (Kyoto University), 2012. http://hdl.handle.net/2433/157582.

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Maglione, Maria Serena. « Preparation of electro-active self-assembled monolayers for the fabrication of advanced electronic devices ». Doctoral thesis, Universitat Autònoma de Barcelona, 2018. http://hdl.handle.net/10803/565694.

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La presente Tesis Doctoral se centra en el estudio del comportamiento conmutable de monocapas auto-ensambladas (SAMs) empleando moléculas electroactivas. Así se realizaron interruptores moleculares cuyo comportamiento fue estudiado en superficies y otros dispositivos tecnológicos. Se emplearon para tales estudios cuatro familias de moléculas electroactivas, las cuales son antraquinonas (AQ), ferrocenos (Fc), tetratiafulvalenes (TTF) y derivados de policlorotrifenilmetano (PTM). La tesis está estructurada de tal manera que cada capítulo está dedicado a una familia específica de moléculas, estando la primera parte de cada capítulo centrado en la descripción, el diseño y la síntesis de las mismas. Le sigue la fabricación de SAMs en sustratos de óxido de indio y estaño (ITO) u oro, dependiendo de la funcionalidad de la molécula y, finalmente, la integración de moléculas en un dispositivo específico. Concretamente, monocapas de derivados de PTM y de TTF se fabricaron sobre superficies de ITO y oro, respectivamente. La investigación de sus propiedades de conmutación se llevó a cabo mediante voltamperometría cíclica (CV) usando como mecanismo de lectura la respuesta óptica, magnética y/o de capacitancia. Así, se lograron interruptores moleculares con múltiples estados con alto potencial de aplicabilidad en el campo de dispositivos de memoria. Además, SAMs mixtas de los derivados de Fc y AQ se fabricaron en sustratos con patrones de ITO // oro logrando sistemas con propiedades confinadas en áreas especificas. El confinamiento de las propiedades superficiales fue comprobado a través de la interacción supramolecular entre β-ciclodextrinas y las diferentes especies redox de las moléculas AQ y Fc. También, se probó la viabilidad de la integración de SAMs de AQ sobre ITO en dispositivos microfluidicos. La actividad redox de la AQ se utilizó como fuerza motriz en el desplazamiento de gotas de agua, realizando un sistema micro-electro mecánico que funciona a bajo voltaje y, por lo tanto, con alto potencial de aplicabilidad en campos biológicos. Finalmente, los derivados Fc, TTF y PTM se integraron en transistores de efecto de campo (FETs), funcionalizando el canal activo, el contacto puerata o el dieléctrico. La presencia de las moléculas electroactivas en las interfaces de los FETs demostró tener un efecto notable en la respuesta de los dispositivos, abriendo nuevas perspectivas para las futuras tecnologías en el campo de la electrónica molecular.
The present Doctoral Thesis is focused on the study of the switchable behavior on Surface of specifically designed electroactive molecules by fabricating self-assembled monolayers (SAMs). Subsequently to the study on surface, the molecules were integrated into various devices in order to investigate the effects of the electro-active switch in more sophisticated systems. Four family of electroactive molecules were employed to reach these goals, namely antraquinones (AQ), ferrocenes (Fc), tetrathiafulvalenes (TTF) and polyclorotriphenylmethy (PTM) derivatives. The thesis is structured in such a way that each chapter is dedicated to a specific family of molecules, being the first part of the chapter focused on the description, the design and the synthesis of the molecule of interest. It follows the fabrication of the SAMs on on indiumtin oxide (ITO) or gold substrates, depending on the molecule functionality and, finally, the integration of the molecule in a specific device. SAMs of PTMand TTF derivatives were fabricated on ITO and gold, respectively, and the investigation of their switching properties was carried out by cyclic voltammetry (CV) and using as read-out mechanism the optical, magnetic or capacitance response. In such a way, multi-state molecular switches with high potential in the field of memory devices were achieved. Furthermore,mixed SAMs of Fc and AQ derivatives were fabricated on patterned ITO//gold substrates, where the supramolecular interaction of the different redox species with b-cyclodextrin was used as a proof of the confinement of the surface properties. The feasibility of the integration of electroactive molecules in devices was tested incorporating SAMs of AQ derivatives on specifically designed ITO electrodes in microfluidic chips. The redox activity of the AQ moiety was used as the driving force for the water actuation, realizing a micro electro-meccanical system operating at low voltage and, hence, with high potential in biological fields. Finally, Fc, TTF and PTM derivatives were integrated in field effect transistors, by functionalizing the active channel, the gate contact or the dielectric, respectively. The presence of the electroactive molecules at the FET interfaces was proved to have a remarkable effect on the devices response, opening new perspectives for the future molecule-based technologies.
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Gardner, Timothy John. « The fabrication and characterization of surface-functionalized microstructures : monolayers as precursors to molecular wires ». Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/12484.

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Chen, Tao, Rainer Jordan et Stefan Zauscher. « Polymer brush patterning using self-assembled microsphere monolayers as microcontact printing stamps ». Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-138826.

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Self-assembled microsphere monolayers (SMMs) hold significant promise for micro- and nanopatterning. Here we exploit, for the first time, SMMs as stamps for microcontact printing (μCP) and demonstrate this to fabricate patterned initiator templates that can subsequently be amplified into polymer brushes by surface initiated atom transfer radical polymerization (SI-ATRP). SMM stamps avoid the need for expensive and sophisticated instrumentation in pattern generation, and provide a broad range of accessible surface chemistries and pitch size control.
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Chen, Tao, Rainer Jordan et Stefan Zauscher. « Polymer brush patterning using self-assembled microsphere monolayers as microcontact printing stamps ». Royal Society of Chemistry, 2011. https://tud.qucosa.de/id/qucosa%3A27784.

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Self-assembled microsphere monolayers (SMMs) hold significant promise for micro- and nanopatterning. Here we exploit, for the first time, SMMs as stamps for microcontact printing (μCP) and demonstrate this to fabricate patterned initiator templates that can subsequently be amplified into polymer brushes by surface initiated atom transfer radical polymerization (SI-ATRP). SMM stamps avoid the need for expensive and sophisticated instrumentation in pattern generation, and provide a broad range of accessible surface chemistries and pitch size control.
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Chesnau, Frédérick [Verfasser], et Michael [Akademischer Betreuer] Zharnikov. « Fabrication of Metal-Insulator-Metal assemblies for spintronic devices using self-assembled monolayers / Frédérick Chesnau ; Betreuer : Michael Zharnikov ». Heidelberg : Universitätsbibliothek Heidelberg, 2011. http://d-nb.info/1180545710/34.

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Lakbub, Jude. « Fabrication of Chemically Modified Nanometer-sized Gold Electrodes and Their Application in Electrocatalysis at Pt Nanoparticles ». Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etd/1385.

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Hydrogen evolution via proton reduction occurs at a high rate at the surface of Pt than at Au electrodes. Using cyclic voltammetry, chemically modified nanometer-sized Au electrodes, prepared by the Laser-Assisted Puller Method, were employed to examine current amplification by electrocalysis at Pt nanoparticles adsorbed on the modified Au electrode surfaces. The electrodes were modified with Self-Assembled Monolayers (SAMs) of cysteamine and soaked in Pt colloid solutions overnight. Monitoring the decrements of the characteristic steady-state catalytic current for proton reduction indicated that aggregates of Pt nanoparticles are adsorbed on the cysteamine monolayers and desorb from them particle by particle. The results also indicate that some particles are strongly attached to the modified electrode surface and do not deplete even after thorough rinsing.
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Chapitres de livres sur le sujet "FABRICATING MONOLAYER"

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Kawai, Takeshi. « Fabrication of Ordered Nanopattern Structures Using Two-Dimensional Colloidal Monolayers ». Dans Electrical Phenomena at Interfaces and Biointerfaces, 391–406. Hoboken, NJ, USA : John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118135440.ch23.

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Liu, Gang-yu, et Song Xu. « Nanometer Scale Fabrication of Self-Assembled Monolayers : Nanoshaving and Nanografting ». Dans ACS Symposium Series, 199–208. Washington, DC : American Chemical Society, 1999. http://dx.doi.org/10.1021/bk-1999-0727.ch015.

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Li, Xiuyan, Zhe Li, Fenlan Xu, Yan Yan, Wei Wang, Luhai Li, Ruping Liu et Zhou Li. « Large-Scale Fabrication of Ordered Monolayer Self-assembly of Polystyrene Submicron Spheres ». Dans Lecture Notes in Electrical Engineering, 827–32. Singapore : Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7629-9_102.

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Westcott, Nathan P., et Muhammad N. Yousaf. « Fabrication of Dynamic Self-Assembled Monolayers for Cell Migration and Adhesion Studies ». Dans Methods in Molecular Biology, 421–36. Totowa, NJ : Humana Press, 2011. http://dx.doi.org/10.1007/978-1-61779-151-2_26.

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Zhang, Jianwu, Zhongping Wang et Zengming Zhang. « Atom Lithography : Fabricating Arrays of Silicon Microstructures Using Self-Assembled Monolayer Resist and Metastable Helium Beam ». Dans Recent Advances in Nanofabrication Techniques and Applications. InTech, 2011. http://dx.doi.org/10.5772/21007.

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A. Tabbakh, Thamer, Prashant Tyagi, Deepak Anandan, Michael J. Sheldon et Saeed Alshihri. « Boron Nitride Fabrication Techniques and Physical Properties ». Dans Characteristics and Applications of Boron [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.106675.

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The III-nitride semiconductors are known for their excellent extrinsic properties like direct bandgap, low electron affinity, and chemical and thermal stability. Among III-nitride semiconductors, boron nitride has proven to be a favorable candidate for common dimension materials in several crystalline forms due to its sp2- or sp3-hybridized atomic orbitals. Among all crystalline forms, hexagonal (h-BN) and cubic (c-BN) are considered as the most stable crystalline forms. Like carbon allotropes, the BN has been obtained in different nanostructured forms, e.g., BN nanotube, BN fullerene, and BN nanosheets. The BN nanosheets are a few atomic layers of BN in which boron and nitrogen are arranged in-planer in hexagonal form. The nanostructure sheets are used for sensors, microwave optics, dielectric gates, and ultraviolet emitters. The most effective and preferred technique to fabricate BN materials is through CVD. During the growth, BN formation occurs as a bottom-up growth mechanism in which boron and nitrogen atoms form a few layers on the substrate. This technique is suitable for high quality and large-area growth. Although a few monolayers of BN are grown for most applications, these few monolayers are hard to detect by any optical means as BN is transparent to a wide range of wavelengths. This chapter will discuss the physical properties and growth of BN materials in detail.
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S. Bhat, Ramesh. « Fabrication of Multi-Layered Zn-Fe Alloy Coatings for Better Corrosion Performance ». Dans Liquid Metals [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99630.

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Zn-Fe compositionally modulated multilayer alloy (CMMA) coatings were developed onto low carbon steel from acid sulphate bath; and their corrosion resistance was calculated using Tafel polarization and impedance methods. The deposit layers were formed galvanostatically by single bath technique (SBT), using square current pulses. An optimal configuration for the growth of most corrosion resistant Zn-Fe coating was proposed and discussed. At maximum switching cathode current density (SCCD) (2.0–5.0 A dm−2), the deposit with 300 layers showed ~43 times superior corrosion resistance than the same thickness of monolayer coating. The improved corrosion resistance of multilayered coatings is due to small change in iron content, leading to change the phase structure of the alternate-layers of the alloy coatings. The surface morphology and structure of film and roughness of the deposit were assessed using Scanning Electron Microscopy and Atomic Force Microscopy. Thus, superior corrosion resistance of Zn-Fe multilayer coatings was used for industrial applications including defense, machinery and automobile etc.
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Netzer, Falko P., et Claudine Noguera. « Two-dimensional oxides ». Dans Oxide Thin Films and Nanostructures, 127–65. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198834618.003.0005.

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The novel physical and chemical properties and functionalities of two-dimensional (2-D) oxide materials are assessed. The synthesis of one unit-cell thick 2-D oxides poses particular challenges, since in contrast to other 2-D materials, which can be fabricated by exfoliation of layered bulk compounds, the majority of oxides do not occur in layered bulk structures. Most 2-D oxides are therefore prepared by thin-film deposition methods on substrates. However the fabrication of free-standing quasi-2-D oxide nanosheets, with less restrictive several monolayer thickness, has been successfully achieved by wet chemical procedures. New geometry concepts and electronic properties are observed in 2-D oxides, due to quantum confinement and interface proximity effects. Atomic geometries, electronic structure, ferroic properties and catalytic behaviour of 2-D oxides are discussed, together with promising prototypical proof-of-concept experiments for prospective applications. The edge states in oxide nanoribbons, 2-D objects of limited width, and their polarity aspects are discussed.
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« Surface Patterning Using Self-Assembled Monolayers : A Bottom-Up Approach to the Fabrication of Microdevices ». Dans Nanoengineering of Structural, Functional and Smart Materials, 363–74. CRC Press, 2005. http://dx.doi.org/10.1201/9780203491966-22.

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Actes de conférences sur le sujet "FABRICATING MONOLAYER"

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Lu, Ying-Chou, Yi-Chen Lai, Jia-Han Li et Chun-Hway Hsueh. « Fabrication of periodic bowtie structure on vanadium dioxide by nanosphere lithography for smart window applications ». Dans JSAP-OSA Joint Symposia. Washington, D.C. : Optica Publishing Group, 2017. http://dx.doi.org/10.1364/jsap.2017.5p_a410_9.

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Nanophotonics has been extensively researched in the past decades owing to the rapid development of the precision nanofabrication techniques, such as focused-ion beam milling and electron-beam lithography. However, it was limited by some disadvantages, such as high cost and low productivity. Therefore, a facile and economics method, nanosphere lithography (NSL) [1], for fabricating multiple nanostructures has been reported. Polystyrene nanospheres, with diameters of several hundred nanometers, were aligned into a monolayer. By using close-packed polystyrene nanospheres array as a mask, periodic metal bowties can be fabricated after metal evaporation and nanospheres lift-off.
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Choi, Chiwoong, Cheol Huh, Dongeok Kim et Moohwan Kim. « Wettability Effect on Flow Boiling in an MEMS-Based Single Glass Microchannel ». Dans ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2008. http://dx.doi.org/10.1115/icnmm2008-62254.

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Many studies have investigated boiling heat transfer in microchannels; however, such phenomena are not yet fully understood, and conflicting results have been reported. There are many important parameters that govern behavior in microsystems, including channel shape, roughness, and choice of material. One potentially important parameter is hydrophobicity of the microchannel surface, as interfacial forces play an increasing role at microscales. We developed a new method of fabricating a single glass rectangular microchannel and microheater using the MEMS (Micro-Electro-Mechanical System) fabrication technique. The glass was used as a hydrophilic surface, and a self-assembled monolayer was coated with OTS (Octadecyl-Trichloro-Silane) to obtain a hydrophobic surface. We conducted an experiment of boiling heat transfer in a microchannel using two surfaces of contrasting hydrophobicity. The resulting flow was observed using a long-distance microscope and a high-speed camera. This approach enables a qualitative analysis of the hydrophobicity effect on the flow regime.
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Popat, Ajay M., et Chad B. O’Neal. « Process Optimization for Releasing of MEMS/NEMS Devices and Coating of Anti-Stiction SAM ». Dans ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-43820.

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Micro electromechanical systems (MEMS) or nano electromechanical systems (NEMS) have higher surface-to-volume ratio, and hence they are susceptible to unintentional adhesion and subsequent failure to function. Although there are many classes of liquid phase anti-stiction coatings for silicon MEMS / NEMS, alkene based monolayer films with hydrogen terminated silicon coatings were chosen since this process has some important advantages over other SAM processes, such as fluorine or chlorine based films. An engineering challenge of scaling up liquid-phase anti-stiction and release processes is met by designing and fabricating a semi-automated and portable MEMS release station, which enables 20 – 40 dice or a wafer up to 100 mm in diameter to be released and coated at one time. This optimized release and coating process reduces processing time and chemical processing volume drastically compared to releasing and coating dice individually. The simultaneous processing of multiple dice was enabled through an inert FEP - Teflon dice-holder-clamp. The clamp is adaptable to hold varied sizes of dice with no lost die. The successful elimination of the secondary HF rinse for hydrogen termination has resulted in additional saving of expensive HF, additional saving of process time, and reduced exposure to the dangerous chemical - HF. The increase in hydrophobicity resulted from the optimized release and SAM coating process was confirmed through the average increase, from 68.2° to 109.3°, in water contact angle of SAM coated Si (100). The increase in the average surface roughness from 0.4 nm for source procedure to ∼ 4 nm using optimized release and SAM coating process became evident through the AFM scanned images. The increase in hydrophobicity and surface roughness using the optimized release and SAM coating process play vital roles in preventing the stiction of MEMS / NEMS devices. This scalable process has good yield and is easier to use and train personnel than a typical SAM coating process.
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Oguchi, Maria Vanessa, Norihiko Hayazawa et Takuo Tanaka. « Characterization of monolayer graphene wrinkles via tip-enhanced Raman spectroscopy ». Dans Plasmonics : Design, Materials, Fabrication, Characterization, and Applications XX, sous la direction de Yu-Jung Lu, Takuo Tanaka et Din Ping Tsai. SPIE, 2022. http://dx.doi.org/10.1117/12.2633229.

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Wu, Zilong, et Yuebing Zheng. « Modulating valley dynamics in a monolayer semiconductor with active chiral metamaterials ». Dans Plasmonics : Design, Materials, Fabrication, Characterization, and Applications XVIII, sous la direction de Takuo Tanaka et Din Ping Tsai. SPIE, 2020. http://dx.doi.org/10.1117/12.2567833.

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Beresnev, Leonid A., Mu-San Chen, Charles Dulcey et Ranganathan Shashidhar. « Twisted nematic device fabrication using photoalignment monolayers ». Dans Optical Science and Technology, SPIE's 48th Annual Meeting, sous la direction de Iam-Choon Khoo. SPIE, 2003. http://dx.doi.org/10.1117/12.508644.

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Li, DeQuan, Xiaoguang Yang et Duncan McBranch. « Molecular Architectural Approaches to Nonlinear Optical Materials ». Dans Nonlinear Optics : Materials, Fundamentals and Applications. Washington, D.C. : Optica Publishing Group, 1996. http://dx.doi.org/10.1364/nlo.1996.nthe.12.

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The design and construction of artificial supramolecular architectures on surfaces is of great current interest and represents an important aspect of molecular self-assembly, because self-assembly offers highly ordered mesoscale structures with desired chemical functionalities and physical properties. The fabrication of polar molecular superstructures proves particularly challenging since polar molecular materials are essential to second-order nonlinear optical (NLO) technologies. Several approaches such as the Langmuir-Blodgett technique and liquid crystals have been reported to generate molecular-based materials with organized polar structures. However, the orientation in these materials is maintained by weak bonding or steric hindrance, which lose the polar alignment over time. Recent developments in self-assembly and host-guest chemistry offer a novel route to ordered materials through the design and synthesis of new molecular building blocks that can be organized into supramolecular assemblies. The synthetic approach here is to fix dipole orientation by structural interlocking of NLO chromophores into cone conformation, and then to utilize them to build polar self-assembled monolayers. In this report, we discuss the molecular design of calixarene-based, NLO molecular "pyramids", their monolayer self-assemblies on oxide surfaces, and their spectroscopic second order NLO properties.
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Masuda, Y., S. Seo, W. S. Seo et K. Koumoto. « ARRANGEMENT OF INORGANIC MATERIALS ON SELF-ASSEMBLED MONOLAYERS USING CHEMICAL REACTIONS ». Dans Processing and Fabrication of Advanced Materials VIII. WORLD SCIENTIFIC, 2001. http://dx.doi.org/10.1142/9789812811431_0045.

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Agonafer, Damena D., Edward Chainani, Muhammed E. Oruc, Ki Sung Lee et Mark A. Shannon. « Surface Characterization Studies of Thiols as a Blocking Mechanism for Specific Adsorption for Application of Charge Selective Membrane Transport ». Dans ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer Meeting and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ht2012-58573.

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This paper proposes the use of electrochemical impedance spectroscopy (EIS) to measure characteristics of gold (Au)-coated membranes and their inherent limitations. In this work, the fabrication of a membrane permeate flow cell is described with the aim of subsequently studying the transport of ions through conductive polycarbonate track etched membrane (PCTE) by interrogating the system using EIS and CV measurements. In particular, we would like to ascertain the voltage range that can be applied to the Au-coated membrane without getting a considerable faradaic activity; the difference between platinum and Au electrode; the effects of different electrolyte concentrations and various applied DC potentials. We extend our previous work done [1] by studying the differences of using a hrydroxyl and methyl terminated self assembled monolayer (SAM). We also extend the quality of the monolayer with respect to the amount of time in which the monolayer is grown. Finally, finding the voltage in which a ‘defect free’ monolayer transforms from insulative to ‘leaky’ behavior extends a detailed analysis of the critical voltage of an alkane thiol.
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Olorunsola, Oluwatobi, Desalegn T. Debu, David French, Stephen J. Bauman et Joseph B. Herzog. « Localized surface plasmons on periodic monolayer black phosphorene nanoribbons tuned in the infrared region with a dielectric substrate ». Dans Plasmonics : Design, Materials, Fabrication, Characterization, and Applications XVI, sous la direction de Takuo Tanaka et Din Ping Tsai. SPIE, 2018. http://dx.doi.org/10.1117/12.2321339.

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Rapports d'organisations sur le sujet "FABRICATING MONOLAYER"

1

Sukenik, Chaim N. Fabrication of Functional Ceramic Composites - Zinc Oxide of Organic Self-Assembled Monolayers. Fort Belvoir, VA : Defense Technical Information Center, octobre 1997. http://dx.doi.org/10.21236/ada336808.

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Mattigod, S. V., J. Liu, G. E. Fryxell, S. Baskaran, M. Gong, Z. Nie, X. Feng et K. T. Klasson. Fabrication and testing of engineered forms of self-assembled monolayers on mesoporous silica (SAMMS) material. Office of Scientific and Technical Information (OSTI), septembre 1998. http://dx.doi.org/10.2172/663547.

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