Bibliographies thématiques / Carbon Nano-structured Thin Films

Littérature scientifique sur le sujet « Carbon Nano-structured Thin Films »

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Publié le 7 septembre 2023

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Articles de revues sur le sujet "Carbon Nano-structured Thin Films"

Srivastava, Sanjay K., A. K. Shukla, V. D. Vankar et V. Kumar. « Growth, structure and field emission characteristics of petal like carbon nano-structured thin films ». Thin Solid Films 492, n^o 1-2 (décembre 2005) : 124–30. http://dx.doi.org/10.1016/j.tsf.2005.07.283.

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Lin, Jing, Tie Feng Zhang et Gui Wen Yu. « Study on the Preparation and Corrosion Resistance of Nano-Structured SiO₂ Thin Film on Carbon Steel ». Advanced Materials Research 183-185 (janvier 2011) : 1722–25. http://dx.doi.org/10.4028/www.scientific.net/amr.183-185.1722.

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Used RF magnetron sputtering method to prepare SiO2thin film on the carbon steel (Q235A) substrate, Films were characterized with the atomic force microscope (AFM) and the X-ray photoelectron spectrum (XPS). Corrosion resistance was compared of SiO2/ Q235A and Q235A. The results showed that: nano-structured thin film was smooth and dense, The thin film was constituted by compact particles of SiO2, and there was no Fe in the films. Electrochemical experiments indicated that SiO2/ Q235A had better corrosion resistant than Q235A in the sea water.

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Dwivedi, Neeraj, Sushil Kumar, Ishpal Rawal et Hitendra K. Malik. « Influence of consumed power on structural and nano-mechanical properties of nano-structured diamond-like carbon thin films ». Applied Surface Science 300 (mai 2014) : 141–48. http://dx.doi.org/10.1016/j.apsusc.2014.02.023.

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Cao, Chuanbao, Jiyu Fu et Hesun Zhu. « CARBON NITRIDE THIN FILMS DEPOSITED BY CATHODIC ELECTRODEPOSITION ». International Journal of Modern Physics B 16, n^o 06n07 (20 mars 2002) : 1138–42. http://dx.doi.org/10.1142/s0217979202011007.

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Carbon nitride thin films were prepared by cathodic electrodeposition. The dicyandiamide compound dissovled in acetone was selected as the organic precursor. Single crystal silicon wafers and conductive glass (ITO) wafers were used as substrates. XPS measurements indicated that the films composed of carbon and nitrogen elements. The nitrogen content reached 41%. The polycrystalline β-C3N4 should exit in the prepared film from TED measurements. The nano hardness of the films on ITO substrates were as high as 13 GPa. The structure and properties were studies.

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BELADI, HOSSEIN, ILANA B. TIMOKHINA, PETER D. HODGSON et YOSHITAKA ADACHI. « CHARACTERIZATION OF NANO-STRUCTURED BAINITIC STEEL ». International Journal of Modern Physics : Conference Series 05 (janvier 2012) : 1–8. http://dx.doi.org/10.1142/s2010194512001778.

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A 0.79 C -1.5 Si -1.98 Mn -0.98 Cr -0.24 Mo -1.06 Al -1.58 Co ( wt %) steel was isothermally heat treated at 200°C for 10 days to produce a nano-structured bainitic steel. The microstructure consisted of nanobainitic ferrite laths with a high dislocation density and retained austenite films having extensive twins. The crystallographic analysis using TEM and EBSD revealed that the bainitic ferrite laths are close to the Nishiyama-Wassermann orientation relationship with their parent austenite. There was only one type of packet identified in a given transformed austenite grain. Each packet consisted of two different blocks having variants with the same habit plane, but different crystallographic orientations. Atom Probe Tomography (APT) revealed that the carbon content of nanobainitic ferrite laths was much higher than expected from the para-equilibrium level. This was explained due to the long heat treatment time, which led to the formation of fine Fe - C clusters on areas with high dislocation densities in bainitic ferrite laths.

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Karimov, KH S., M. M. Ahmed, Z. M. Karieva, M. Saleem, A. Mateen et S. A. Moiz. « Humidity Sensing Properties of Carbon Nano-Tube Thin Films ». Sensor Letters 9, n^o 5 (1 octobre 2011) : 1649–53. http://dx.doi.org/10.1166/sl.2011.1727.

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Ahmad, R., M. Salina, M. H. Mamat, A. Awang Teh, M. Kara, M. Rusop et Z. Awang. « Aging Effects on Physical and Electrical Properties of Nano-Structured MgZnO Thin Films for Carbon Nanotube Applications ». Journal of Nanoscience and Nanotechnology 12, n^o 10 (1 octobre 2012) : 8153–57. http://dx.doi.org/10.1166/jnn.2012.4524.

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Chang, Fuh-Yu, Ruoh-Huey Wang, Hsiharng Yang, Yu-Hsien Lin, Tse-Min Chen et Shu-Jiuan Huang. « Flexible strain sensors fabricated with carbon nano-tube and carbon nano-fiber composite thin films ». Thin Solid Films 518, n^o 24 (octobre 2010) : 7343–47. http://dx.doi.org/10.1016/j.tsf.2010.04.108.

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Li, Dong, Yip‐Wah Chung, Ming‐Show Wong et William D. Sproul. « Nano‐indentation studies of ultrahigh strength carbon nitride thin films ». Journal of Applied Physics 74, n^o 1 (juillet 1993) : 219–23. http://dx.doi.org/10.1063/1.355304.

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Kovalchuk, A. A. « Structure and oxygen-sensitive properties of thin films of natural carbon ». Journal of Physics : Conference Series 2316, n^o 1 (1 août 2022) : 012014. http://dx.doi.org/10.1088/1742-6596/2316/1/012014.

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Abstract Thin film carbon nanomaterials are widely studied and used as functional, conductive, reflective, and sensor coatings. In this work, films of natural graphene-based carbon are studied as a sensitive material for a gas sensor operating close to room temperature. The structural features of the films were studied by scanning electron microscopy and Raman spectroscopy. It has been found that the deposition of natural carbon on substrates with a conductive coatings of indium oxide and of indium tin oxide allows to obtain a thin films, represented by homogeneous carbon nets, in the nodes of which are globular nano-sized particles. Microwave conductivity measurements were carried out using a λ/4 coaxial resonator based on a symmetric two-wire line. The results demonstrated that films on substrates with deposited indium oxide and indium tin oxide desorb oxygen from various structural levels of graphene-based carbon.

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Thèses sur le sujet "Carbon Nano-structured Thin Films"

Ahn, Hee Seok. « Heat transfer enhancement in single-phase forced convection with blockages and in two-phase pool boiling with nano-structured surfaces ». Texas A&M University, 2003. http://hdl.handle.net/1969.1/5869.

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The first study researched turbulent forced convective heat (mass) transfer down- stream of blockages with round and elongated holes in a rectangular channel. The blockages and the channel had the same cross section, and a distance equal to twice the channel height separated consecutive blockages. Naphthalene sublimation experiments were conducted with four hole aspect ratios (hole-width-to-height ratios) and two hole-to-blockage area ratios (ratios of total hole cross-sectional area to blockage area). The effects of the hole aspect ratio, for each hole-to-blockage area ratio, on the local heat (mass) transfer distribution on the exposed primary channel wall between consecutive blockages were examined. Results showed that the blockages with holes enhanced the average heat (mass) transfer by up to 8.5 and 7.0 times that for fully developed turbulent flow through a smooth channel at the same mass flow rate, respectively, in the smaller and larger hole-to-blockage area ratio (or smaller and larger hole diameter) cases. The elongated holes caused a higher average heat (mass) transfer and a larger spanwise variation of the local heat (mass) transfer on the channel wall than did the round holes. The second study explored the heat transfer enhancement for pool boiling on nano-structured surfaces. Experiments were conducted with three horizontal silicon surfaces, two of which were coated with vertically aligned multi-walled carbon nanotubes (MWCNT) with heights of 9 and 25 ÃÂ¹m, respectively, and diameters between 8 and 15 nm. The MWCNT arrays were synthesized on the two silicon wafers using chemical vapor deposition. Experimental results were obtained over the nucleate boiling and film boiling regimes under saturated and sub-cooled (5ÃÂ±C and 10ÃÂ±C) boiling conditions. PF-5060 was the test fluid. Results showed that the MWCNT array with a height of 25 ÃÂ¹m enhanced the nucleate and film boiling heat fluxes on the silicon surface by up to 380% and 60%, respectively, under saturated boiling conditions, and by up to 300% and 80%, respectively, under 10ÃÂ±C sub-cooled boiling conditions, over corresponding heat fluxes on a smooth silicon surface. The MWCNT array with a height of 9 ÃÂ¹m enhanced the nucleate boiling heat flux as much as the taller array, but did not significantly enhance the wall heat flux in the film boiling regime.

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Kukreja, Ratandeep. « Synthesis of Thin Films in Boron-Carbon-Nitrogen Ternary System by Microwave Plasma Enhanced Chemical Vapor Deposition ». University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1285688216.

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Bossard, Maxime. « Développement de moules intrinsèquement antiadhésifs pour l'étude du collage en nano-impression ». Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAT010/document.

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La nano-impression est une technique de lithographie qui consiste à reproduire les motifs contenus dans un moule, par pressage de celui-ci sur un film de résine. Cette technologie – rapide et peu coûteuse à mettre en oeuvre – est prometteuse mais son utilisation à l’échelle industrielle nécessite encore des améliorations notamment en termes de limitation de la défectivité des motifs reproduits. Des solutions existent pour pallier cette limitation, à travers notamment l’utilisation de traitements antiadhésifs qui se greffent en surface des moules et permettent de favoriser les étapes de démoulage. Cependant, ces traitements de moules ont une durée de vie limitée, ce qui limite la rentabilité globale du procédé de nano-impression.Ce projet de thèse s’intéresse à la question de la durabilité des moules et propose des matériaux alternatifs pour la fabrication de moules de nano-impression.Pour répondre aux exigences des acteurs de la nano-impressions, quatre matériaux (le Diamond-like carbon, le carbure de silicium et leurs versions dopées en fluor) ont été développés pour une utilisation en tant que matériaux de moules alternatifs au silicium et au quartz. La caractérisation des propriétés physiques et physico-chimiques a été réalisée de sorte à sélectionner les matériaux les plus prometteurs qui ont ensuite été structurés pour une utilisation en tant que moules fonctionnels.Les propriétés d’adhérence de ces matériaux ont ensuite été caractérisées tant en nano-impression assistée par ultraviolets qu’en nano-impression thermique. Ces essais ont permis de montrer que les matériaux développés, malgré une grande énergie de surface, présentent intrinsèquement un caractère antiadhésif lié à leur inertie chimique
Nanoimprint is a lithography technology which consists in structuring a polymer film by pressing a structured mold into it. This promising method is low-cost and has a high throughput, but its implementation in industry still requires improvements, particularly regarding the defectivity of imprinted structures. To circumvent this defectivity, the use of antiadhesive treatments, grafted to the mold surface has been developed to facilitate the demolding step. However, these treatments have a limited lifespan, thereby empeding the global nanoimprint cost-effectiveness.This thesis focuses on mold durability and suggests alternative materials for the fabrication of nanoimprint molds.To match nanoimprint requirements, four materials (Diamond-like carbon, Silicon carbide and their fluorine-doped versions) were developed to be used as alternatives to silicon and quartz. Physical and physico-chemical characterization were carried out, so as to determine the best candidates that were then patterned, leading to usable molds.Adhesion properties of these materials were then characterized both in UV-nanoimprint and thermal-nanoimprint procedures. These investigations showed that despite their high surface energies, the developed materials exhibit intrinsically antiadhesive properties, thanks to their chemical inertness

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Pastorelli, Francesco. « Light enhancements in nano-structured solar cells ». Doctoral thesis, Universitat Politècnica de Catalunya, 2013. http://hdl.handle.net/10803/145638.

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In this century some of our main issues are energy shortage and pollution. This work will briefly describe these problems, proposing a plan of action combining energy saving and different sustainable energy sources. Within different types of renewable energy sources, solar energy is the most abundant one. To make solar energy a more sustainable and cost effective technology we focus on enhancing the optical characteristics of thin film solar cells. In this category, organic solar cells are good options for their exiguous amount of material and the low energy needed for the fabrication process. This technology can be lightweight, transparent, flexible and conformal in order to be applied to and integrated in various architectural solutions and consumer electronics. After a study of the physics of such devices and on how to optically enhance their performances, we will show some examples where we theoretically and experimentally collect the solar radiation with optical antennas. We report, for the first time in literature, a nanogap antenna that efficiently couples the light in our active material thin film. Finally, we elaborate on the concept of building integrated photovoltaics introducing some examples of solar façades. Based on our research, we are able to design and fabricate an organic transparent solar cell with a visible transparency above 20% and an optically enhanced photon-electron conversion efficiency remarkably similar to its opaque equivalent.
En el presente siglo, algunas de las prioridades son la escasez de la energía y la contaminación. Este trabajo describirá brevemente estos problemas y propondrá un plan de acción que combina el ahorro energético con diferentes fuentes sostenibles de energía. Dentro de estas fuentes de energía renovables, la energía solar es la más abundante. Con el objetivo de hacer la tecnología solar más sostenible y eficiente económicamente nos concentramos en aumentar las características ópticas en celdas solares de película delgada. Dentro de esta categoría, las celdas solares orgánicas son una buena opción porque su desarrollo requiere bajas cantidades de materiales y su fabricación es de baja energía embebida. Adicionalmente, esta tecnología puede ser liviana, transparente, flexible mecánicamente y modular para ser aplicada e integrada en varias soluciones arquitectónicas y de electrónica de consumo. Luego de estudiar los procesos físicos en tales dispositivos y de determinar las metodologías para aumentar ópticamente sus desempeños, mostraremos algunos ejemplos donde teórica y experimentalmente se colecta la radiación solar mediante antenas ópticas. Se reporta por primera vez, una antena de nanogap que acopla eficientemente la luz en la capa activa de la celda solar. Finalmente, se desarrolla el concepto de tecnología fotovoltaica integrada en edificaciones tras introducir algunos ejemplos de fachadas solares. Basados en nuestra investigación, fue posible diseñar y fabricar una celda solar orgánica transparente cuya transparencia en el rango visible estuvo por encima del 20% y una eficiencia de conversión foton-electron aumentada ópticamente que resulto notoriamente similar a la celda solar orgánica opaca equivalente.
La rareté grandissante des ressources en énergie associée à une augmentation de la pollution font partie des enjeux plus importants de ce siècle. Cette thèse décrira brièvement ces deux problématiques et proposera un plan d’action combinant économie d’énergie et diversité des sources d’énergies renouvelables. Parmi les formes d’énergies renouvelables disponibles, l’énergie solaire est la plus abondante. Pour faire de l’énergie solaire une ressource plus durable et plus rentable économiquement, nous proposons d’amplifier les propriétés optiques de cellules solaires en couches minces. Dans cette catégorie, les cellules solaires organiques représentent un choix pertinent de part la faible quantité de matériau nécessaire ainsi que la faible énergie nécessaire au procédé de fabrication. Cette technologie peut être légère, transparente et flexible de sorte qu’elle peut être utilisée dans différentes solutions architecturales s’adaptant à des produits électroniques pour le grand publique. Suivra la théorie sous jacente à ces dispositifs et l’explication de la manière dont leurs performances sont améliorées. Nous présenterons quelques exemples où l’on collecte la radiation solaire avec une antenne optique. Ainsi, nous faisons la toute première démonstration d’une antenne auto-assemblée qui couple efficacement la lumière dans le matériau constituant la couche mince que nous utilisons. Finalement, nous développons le concept de cellules photovoltaïques intégrées en présentant différents cas de façades solaires. Ces travaux nous ont permis de concevoir et de fabriquer une cellule solaire organique transparente avec une transparence dans le visible de 20% et une efficacité de conversion photon-électron améliorée, similaire à une cellule équivalente opaque.
La difficile reperibilità di risorse energetiche e l’inquinamento sono alcuni dei problemi più importanti di questo secolo. In questo lavoro saranno presentati brevemente questi temi proponendo un piano d’azione che abbini il risparmio energetico alle differenti fonti di energia rinnovabili. Nell’insieme delle fonti energetiche rinnovabili l’energia solare è senz’altro la più abbondante. Con l’obbiettivo di rendere lo sfruttamento di tale energia più sostenibile ed economicamente vantaggioso, ci premuriamo di migliorare le caratteristiche ottiche di celle fotovoltaiche a film sottile. In questa categoria utilizziamo, tra le diverse opzioni, le celle solari organiche in quanto la loro fabbricazione richiede una quantità di materiale minimo e un basso consumo energetico. Inoltre questi tipi di dispositivi possono essere leggeri, trasparenti, flessibili e conformabili alle superfici su cui sono applicati. Questa è una tecnologia che potrebbe essere implementata e integrata in varie soluzioni architettoniche o nell’ elettronica di consumo. Dopo aver presentato i principi fisici di tali dispositivi e determinato le metodologie ottiche per aumentarne le prestazioni, vengono illustrati alcuni esempi dove, teoricamente e sperimentalmente, riusciamo a intercettare la radiazione solare con antenne ottiche. Riportiamo, per la prima volta in letteratura, un’antenna ottica con nano-gap che accoppia efficacemente la luce solare nel nostro materiale attivo a film sottile. Nell’ultima parte sviluppiamo il concetto di tecnologia solare integrata negli edifici, introducendo alcuni esempi di facciate solari. Basando il design sulla nostra ricerca, è possibile realizzare una cella solare fotovoltaica organica trasparente, con una trasparenza superiore del 20% e un’ efficienza di conversione fotone-elettrone migliorata grazie all’ottica, che risulta molto vicina all’ equivalente cella fotovoltaica organica non trasparente.

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Fechete, Alexandru Constantin, et e54372@ems rmit edu au. « Layered Surface Acoustic Wave Based Gas Sensors Utilising Nanostructured Indium Oxide Thin Layer ». RMIT University. Electrical and Computer Engineering, 2009. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20091105.141111.

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Planar two-dimensional (2-D) nanostructured indium oxide (InOx) and one-dimensional (1-D) tin oxide (SnO2) semiconductor metal-oxide layers have been utilised for gas sensing applications. Novel layered Surface Acoustic Wave (SAW) based sensors were developed consisting of InOx/SiOxNy/36°YXLiTaO3, InOx/SiNx/SiO2/36°YXLiTaO3 and InOx/SiNx/36°YXLiTaO3 The 1 µm intermediate layers of silicon oxynitride (SiOxNy), silicon nitride (SiNx) and SiO2/SiNx matrix were deposited on lithium tantalate (36°YXLiTaO3) substrates by r.f. magnetron sputtering, electron-beam evaporation and plasma enhanced chemical vapour deposition (PECVD) techniques, respectively. As a gas sensitive layer, a 100 nm thin layer of InOx was deposited on the intermediate layers by r.f. magnetron sputtering. The targeted gases were ozone (O3) and hydrogen (H2). An intermediate layer has multiple functions: protective role for the interdigital transducers' electrodes as well as an isolating effect from InOx sensing layer, thereby improving the sensor performance. The developed SAW sensors' exhibited high response magnitudes with repeatable, reversible and stable responses towards O3 and H2. They are capable of sensing concentrations as low as 20 parts-per-billion for O3 and 600 parts-per-million for H2. Additionally a conductometric type novel sensing structure of SnO2/36°YX LiTaO3 was also developed by depositing a thin layer of SnO2 nanorods by PECVD. The gas sensing performance exhibited repeatable, reversible, stable responses towards NO2 and CO. The surface morphology, crystalline structure and preferred orientation of the deposited layers were investigated by Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD). A polycrystalline, oxygen deficient non-stoichiometric InOx with grain sizes of 20-40 nm was revealed. The 1-D nanostructures were characterised by Transmission Electron Microscopy (TEM) showing nanorods with needle-like shape , diameters of 10-20 nm a t the top and 30-40 nm at the base as well as a preferential growth orientation of [ ] on the LiTaO3 substrate. The developed sensors are promising for O3, H2 and CO sensing.

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Chen, Jie-Shin, et 陳潔心. « Growth of novel micro-structured carbon thin films by using ultrashort-pulse laser deposition ». Thesis, 2011. http://ndltd.ncl.edu.tw/handle/49585548783325366091.

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碩士
國立中正大學
物理學系暨研究所
99
Pulsed laser deposition is a versatile method for growing thin films, composed of widely various materials, with and without nanostructures. Its great capability lies in its ability to non-thermally and congruently transfers material from a multi-component target onto a substrate on a layer-by-layer basis. Furthermore, ultrafast-pulse laser deposition provides much higher tunability in the ionization state and momentum of the plasma ions in the plume, offering more control factors for guiding film growth. 　　With this technique, unknown and novel carbon thin films, composed of nano-particles self-organized into regular micrometer-scale patterns, were produced successfully by deposition of laser-ablated graphite on glass substrates. A systematic study by varying laser duration, fluence, on-target beam size, film thickness, distance between target and substrate, substrate material, and substrate temperature was conducted. The dependence of the micrometer-scale organization on laser parameters reveals the unexploited potential of ultrashort-pulse laser deposition for controlled growth of novel nano- and micro-structured thin films.

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WU, Yao-Hsuan, et 巫耀玄. « Studies of photophysical properties of solid-state carbon nano-dot thin films for greener luminescent solar concentrators ». Thesis, 2018. http://ndltd.ncl.edu.tw/handle/nx66pf.

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碩士
中原大學
奈米科技碩士學位學程
106
A luminescent solar concentrator (LSC) is consisted of the luminophores and a waveguide that can be used to spatially concentrate both direct and diffused sunlight without the need of complex and expensive solar-tracking and cooling systems. Recently, colloidal quantum dots (CQDs) with some unique photophysical properties have attracted much attention as the luminophores in LSCs. However, most of mature CQDs contain heavy metals and need to be synthesized in the hazardous organic solvent. In addition, they also suffered from concentration-induced quenching (CIQ), thus the loading concentration of luminophores doped in LSCs is restricted. Unfortunately, this would reduce the light-absorbing efficiency, leading to large transmission losses. To address all the issues mentioned previously, organosilane-functionalized carbon nanodots (Si-CNDs) were synthesized based on cost-effective, earth-abundant precursors using a simple hydrothermal method. Such Si-CNDs exhibit some unique photophysical properties, including large absorption coefficient, high PL quantum yields (PL-QYs) and resistance to CIQ effect. Due to good film-forming properties, greener LSCs with different loading concentrations can be simply fabricated by directly cross-linking Si-CNDs on the glass waveguide. The LSCs are highly transparent even under high loading concentration up to 75 wt%, indicating high uniformity of Si-CND distribution. The LSCs with 25 wt% loading contents still possess high solid-state PL-QYs up to ~41% upon the calibration of reabsorption losses and high internal quantum efficiency of ~23% due to low scattering losses. We expect our demonstration can pave a way to further design efficient greener LSCs after further reducing the reabsorption losses.

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Jun-YiWu et 吳俊逸. « Fabrication of nano-carbon/PEDOT:PSS hybrid thin films for flexible transparent conductive electrodes and all-solid-state supercapacitors ». Thesis, 2016. http://ndltd.ncl.edu.tw/handle/36eb6g.

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碩士
國立成功大學
化學工程學系
104
This thesis concerns the developments of flexible transparent conductive electrodes and supercapacitors using carbon nanotube (CNT), reduced graphene oxide, and their hybrids with conducting polymer poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS). At first, the CNT and rGO-based thin films were fabricated as flexible transparent conductive electrodes by the blade-coating of CNT or graphene oxide (GO) dispersion on polyethylene terephthalate (PET) and the followed GO reduction with hydroiodic acid for the case of GO. The decreases of transmittance and sheet resistance with the increase of layer numbers have been described. Secondly, CNT or GO (0~0.1wt%) was added to the equal volume mixture of PEDOT:PSS and dimethyl sulfoxide (DMSO) to yield homogeneous dispersions. For the case of GO, the dispersion was further microwave-treated to obtain the rGO dispersion. Then, the CNT or rGO dispersion was blade-coated on PET to form the CNT/PEDOT:PSS or rGO/PEDOT:PSS hybrid thin films as flexible transparent conductive electrodes. It was found that the appropriate addition of CNT or rGO indeed could effectively enhance the conductivity via the formation of conductive network. The lowest sheet resistance around 1000 Ω with a transmittance above 80% was obtained for both the hybrid thin films. Finally, it was demonstrated that both the CNT/PEDOT:PSS and rGO/PEDOT:PSS hybrid thin films also could be used as the electrodes for supercapacitors. The capacitance could be raised by appropriately increasing the thickness of hybrid thin films. Furthermore, the flexible transparent all-solid-state supercapacitors were fabricated with polyvinyl alcohol/sulfuric acid (PVA/H2SO4) gel electrolyte between two CNT/PEDOT:PSS or rGO/PEDOT:PSS hybrid thin film-based electrodes. It was found that both the resulting supercapacitors had transmittances above 56% and could be quickly charged and discharged. Also, their electrochemical performance could be retained while bending. All the results revealed that both the CNT/PEDOT:PSS and rGO/PEDOT:PSS hybrid thin films could be developed as good electrode materials for flexible transparent supercapacitors.

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Jou, Jing-Tien, et 周敬添. « Study on opto-electronic properties of nano-scale carbon material and metal-doped zinc-oxide composite thin films ». Thesis, 2018. http://ndltd.ncl.edu.tw/handle/4c58c3.

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博士
國立中興大學
電機工程學系所
106
In this study, first of all, we made a composite thin film with multi wall carbon nanotubes and AZO. The ratio of the MWCNT in sol–gel solution ranges from 0.01 to 1.0 wt.%. This study investigates the effects of MWCNT ratio on structural, electrical, and optical properties of AZO:MWCNT thin films. The XRD analysis showed a strong (0 0 2) peak along the c axis at 2θ ~ 34.4o indicating a hexagonal wurtzite structure for the AZO:MWCNT thin films. The intensity of (0 0 2) peak decreased with the increasing MWCNT ratio, revealing that AZO were bounding with the MWCNTs. The sheet resistance of AZO:MWCNT thin films significantly decreased from 1.38 × 104 to 10.5 Ω/□ with increasing the MWCNT ratio from 0.01 to 1.0 wt.%; meanwhile, the optical transmittance in the visible wavelength region decreased from 87.9% to 12.1%, respectively.Second, a reduced graphene oxide and AZO thin film had been made. The sheet resistance of the films was reduced when the rGO ratio increased from 0 to 3.0 wt%. The optical transmittance of the composite film decreasedwith increasing the rGO ratio from 0 to 3.0 wt%. The average optical transmittance (400–700 nm) of the AZO/rGO composite thin film within 1.0 wt% rGO was above 81% and the sheet resistance was 430Ω/□. Finally, .a highly stable, transparent, and flexible composite electrode was developed using reduced graphene oxide (rGO)/AgNWs/Ga–doped zinc oxide (GZO) composite thin films. TherGOfilm was first spin　coated on flexible substrates and used as an adhesion enhancement layer.　The AgNWs, which were used as a primary conductor, formed a random percolating network embedded between the rGO and GZO films. TheGZO film was sputtered on the surface of the AgNWsand was used as a protective layer to prevent the oxidation of　the AgNWs. The rGO/AgNWs/GZO composite thin film exhibited excellentelectrical conductivity and superior stability to a monolayer or a bilayer TCF. The sheet resistance of the composite film was 5.5±0.5 Ω/□ when exposed to the atmosphere for 60 days. The rGO/AgNWs/GZO composite film exhibited an optical transmittance of approximately 84% at a wavelength of 550 nm. A bending test was conducted for 600 cycles with a curvature radius of 1 cm, and the test results revealed that sheet resistance of the composite film varied by less than 10%. The developed rGO/AgNW/GZO transparent conducting thin films have potential for use in future flexible optoelectronic devices.

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XIANG, JIAN-YING, et 向建穎. « Fabrication and Characterization of Nano-structured MoN Thin Films ». Thesis, 2017. http://ndltd.ncl.edu.tw/handle/42dmn6.

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碩士
國立聯合大學
材料科學工程學系碩士班
105
In this study, the molybdenum nitride, MoN, multilayer coatings modulated by single layer molybdenum nitride with distinguished structure was proposed. The microstructures with crystalline, preferred orientation and featureless structure, respectively, are fabricated by magnetization sputtering with the input power and gas inlet control. Three kinds of multilayer coatings were successfully prepared by stacking of MoN single layer coating of above mentioned three structural features. The structure of the multilayer coatings were controlled at a total of 20 layers and 1 um, while each building layer was 50 nm. Sample M1-2, which is formed by alternately stacking of the crystalline and the preferred orientation structure, exhibits a strong suppression on formation of the preferred orientation, and the columnar crystalline structure is confined to each of the building layers. On the other hand, the continuous columnar crystalline structure are observed in the microstructure of M1-7and M2-7 which are made of crystalline/amorphous, and preferred orientation/amorphous structures, respectively. The atoms in the amorphous layer are easily to grow along the grain in the previous layer. In particular, the continuous columnar crystalline structure with (111) preferred orientation grown through several layers is observed in the M2-7 coating. The multilayers showed excellent adhesion as compared to the single layer coatings. M1-7 exhibited the superior adhesion, strength with almost no peeled coating fragments around the edges of the pit. The tribological behavior of multilayer and single layer was also discussed.

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Chapitres de livres sur le sujet "Carbon Nano-structured Thin Films"

Chu, K., et Yao Gen Shen. « Nano-Structured TiN/TiBN Multilayer Thin Films ». Dans Advances in Composite Materials and Structures, 889–92. Stafa : Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-427-8.889.

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Lee, J. G., et S. P. Lee. « Nano-Structured Carbon Nitride Films for Microsensor Applications ». Dans Solid State Phenomena, 1199–202. Stafa : Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-30-2.1199.

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Chang, Choong W., Ju N. Kim, Yoen H. Jeong, Young J. Seo, S. Chowdhury et Sung P. Lee. « Surface Analysis of Nano-Structured Carbon Nitride Films for Microsensors ». Dans Ceramic Transactions Series, 79–87. Hoboken, NJ, USA : John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470528990.ch10.

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Que, Wen Xiu, M. Sun, C. Y. Jia, L. Cheng, Z. Sun, L. L. Wang et X. Hu. « Titania/Ormosils Organic-Inorganic Hybrid Thin Films Doped with Azobenzene Small Molecules for Optical Switch Applications ». Dans Semiconductor Photonics : Nano-Structured Materials and Devices, 11–13. Stafa : Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-471-5.11.

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Bogdanov, Ž., N. Popović, M. Zlatanović, B. Goncić, Z. Rakočević et S. Zec. « Nano-Structured TiN Thin Films Deposited by Single Ion Beam Reactive Sputtering ». Dans Materials Science Forum, 303–8. Stafa : Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-441-3.303.

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de Hosson, Jeff Th M., et Hans A. De Raedt. « Nano-Structured Thin Films : A Lorentz Transmission Electron Microscopy and Electron Holography Study ». Dans Materials Science Forum, 4241–50. Stafa : Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-960-1.4241.

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Sancakoglu, Orkut. « Technological Background and Properties of Thin Film Semiconductors ». Dans 21st Century Surface Science - a Handbook. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.91751.

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Especially with the development of nanotechnology and polymer science, interest in research and production of both efficient and lower-cost semiconductor thin film materials is increasing day by day. The use of nano-structured thin films for efficient use of solar cells in production of n-type semiconductor materials is one of the most important sources of energy and new-generation energy. Considering the indicated trends and energy requirements, it has been important to transfer this technology in detail regarding the surface technologies related to the semiconductor materials produced with thin film technologies instead of bulk materials. With this aim, this book chapter “Technological Background and Properties of Thin Film Semiconductors” includes a brief story about semiconductors, band gap theory, thin film applications, and besides traditional thin film processing methods finally a new technology called aerosol deposition technique which allows room temperature processing of several materials for semiconductor applications, respectively. It is thought that it will make important contributions to the relevant field and bring a new perspective and direct scientific research in “process-structure–property-performance” relation.

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Srivastava, A. « Nanomaterials in the Lubricant Industry ». Dans Emerging Nanomaterials and Their Impact on Society in the 21st Century, 32–39. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902172-2.

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Nanomaterials in lubricants are solid particles having nanometer size (particle size ranging between 1-100 nm) and possessing intriguing tribological properties. When these nanoparticles are incorporated in the lubricating base oil, they have an add-on effect on diminishing friction, wear and tear of the two interacting surfaces in relative motion. Ideally the shape of nano-lubricants is spherical which is encountered in C60 fullerenes, carbon onions, inorganic fullerenes of metal oxides, sulphides, etc. On the other hand, they can have a cylindrical (carbon nanotubes), disc or wire shape also. Nanomaterials have arisen as environmentally-benign lubricant additives to elevate the tribological properties of the traditional lubricants utilized in the fields of automobiles and various industries. The presence of nanoparticles in lubricants enhances the mechanistic aspects of thin film (boundary film), thick film and extreme pressure lubrication. When the layer of lubricating oil is disrupted, for example, the solid nanoparticles in it can take up the load without decomposing and provide essential backup. Other advantages include excellent mechanical strength due to their compact size and stability at high temperatures and pressures. They also have the ability to adsorb on the surfaces of metal machines, preventing direct metal-to-metal contact and thereby wear and tear. These benefits include increased equipment usage, improved fuel efficiency, and increased maintenance intervals. As a result, the current chapter examines several types of nanomaterials as lubricant additives, as well as their applications and benefits in various automotive/engine/industrial lubricants.

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Gillain, Anne. « The Man Who Loved Women (1977) ». Dans Totally Truffaut, 201–16. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780197536308.003.0018.

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Played by the same actor as in The Bride wore Black, this film depicts the routine of a womanizer who is undertaking to write his memoirs. Structured as a flashback, the narrative ties up past and present through an extensive use of the voice-over. It also draws analogies between the hero’s compulsion and his early relationship with his mother. An accurate description of the inner process that triggers fetishism, the narrative concentrates on its two vectors in the film: women’s legs and books. Shot-to-shot analysis: A chance encounter with a woman from the past and the portrayal of a relationship that eludes any pathological configuration. Leslie Caron plays the object of this past love in role evocative of Catherine Deneuve.

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Actes de conférences sur le sujet "Carbon Nano-structured Thin Films"

Zhang, Feifei. « Ultrasonic Characterization of the Mechanical Properties of Nano-Structured Diamond-Like Carbon Thin Films ». Dans REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION. AIP, 2005. http://dx.doi.org/10.1063/1.1916803.

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Qiao, Junfeng, Lingfeng Li, Xiyuan Liu, Yongzhi Wu, Zanxiang Nie, Xiaozhi Wang et Hang Zhou. « Carbon nanotube thin films as photoemissive ionization source ». Dans 2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO). IEEE, 2017. http://dx.doi.org/10.1109/nano.2017.8117276.

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Toshinari Isono, Masahiro Fujita, Takahide Oya et Toshio Ogino. « Fabrication of carbon nanotube thin films by surface engineering ». Dans 7th IEEE International Conference on Nanotechnology. IEEE, 2007. http://dx.doi.org/10.1109/nano.2007.4601307.

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Bhatt, Vijay Deep, Katharina Melzer, Alaa Abdellah, Paolo Lugli, Shokoufeh Teymouri et Zeno Guttenberg. « Biocompatibility tests on spray coated carbon nanotube and PEDOT:PSS thin films ». Dans 2015 IEEE 15th International Conference on Nanotechnology (IEEE-NANO). IEEE, 2015. http://dx.doi.org/10.1109/nano.2015.7388842.

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Soyoun Jung, Taeksoo Ji, Jining Xie et Vijay K. Varadan. « Flexible Strain Sensors Based on Pentacene-Carbon Nanotube Composite Thin Films ». Dans 7th IEEE International Conference on Nanotechnology. IEEE, 2007. http://dx.doi.org/10.1109/nano.2007.4601212.

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Akhtar, Muhammad Shahrukh, Zhonglie An, Masaya Toda et Takahito Ono. « Electrodeposition and characterization of nickel-carbon nanotube composite thin films with high carbon nanotube content ». Dans 2016 IEEE 16th International Conference on Nanotechnology (IEEE-NANO). IEEE, 2016. http://dx.doi.org/10.1109/nano.2016.7751464.

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Sinha, N., Y. Sun et J. T. W. Yeow. « Field Emission Properties of Carbon Nanotube Thin Films Grown on Different Substrate Materials ». Dans 2008 8th IEEE Conference on Nanotechnology (NANO). IEEE, 2008. http://dx.doi.org/10.1109/nano.2008.86.

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Fadzilah, A. N., K. Dayana et M. Rusop. « Deposition of amorphous carbon thin films by aerosol-assisted CVD method ». Dans 8TH INTERNATIONAL CONFERENCE ON NANOSCIENCE AND NANOTECHNOLOGY 2017 (NANO-SciTech 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5036888.

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Lian, Hongcheng, Jun Luo, Xianming Zhang, Lehua Qi et Huaiyuan Qu. « Development of a droplet generation equipment for nano carbon thin films printing ». Dans 2016 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO). IEEE, 2016. http://dx.doi.org/10.1109/3m-nano.2016.7824913.

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Numata, Hideaki, Kazuki Ihara, Takeshi Saito et Fumiyuki Nihey. « Printing technology and advantage of purified semiconducting carbon nanotubes for thin film transistor fabrication on plastic films ». Dans 2011 IEEE 11th International Conference on Nanotechnology (IEEE-NANO). IEEE, 2011. http://dx.doi.org/10.1109/nano.2011.6144627.

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