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Dissertations / Theses on the topic 'Graphene Oxide Thin Film'

Author: Grafiati

Published: 6 September 2023

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1

Tekenya, Ronald. "Graphene-modified pencil graphite mercury-film electrodes for the determination of trace metals by cathodic adsorptive stripping voltammetry." University of the Western Cape, 2018. http://hdl.handle.net/11394/6552.

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>Magister Scientiae - MSc<br>This project focuses on the simple, fast and highly sensitive adsorptive stripping voltammetry detection of Nickel and Cobalt complexed with DMG and Nioxime respectively at a Reduced Graphene Oxide modified pencil graphite electrode in water samples. This research as well demonstrates a novel electrochemically reduced graphene oxide (ERGO)/mercury film (MF) nanocomposite modified PGE, prepared through successive electrochemical reduction of graphene oxide (GO) sheets and in-situ plated mercury film. The GO and graphene were characterized using FT-IR, HR-SEM,

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2

Sanga, Nelia Abraham. "Determination of heavy metals at the electrochemically reduced graphene oxide mercury film electrode (ERGO-HgF-PGE) using adsorptive stripping voltammetry." University of Western Cape, 2020. http://hdl.handle.net/11394/7718.

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>Magister Scientiae - MSc<br>This work reports the use of a pencil graphite electrode (PGE) as inexpensive and sensitive electrochemical sensing platform fabricated by using electrochemically reduced graphene oxide (ERGO) in conjunction with an in-situ plated thin mercury film. For the first time the ERGOHgF-PGE sensor is proposed for simultaneous detection of cadmium (Cd2+), copper (Cu2+), lead (Pb2+) and zinc (Zn2+) using N-Nitroso-N-phenylhydroxylamine (cupferron) as complexing agent by square-wave adsorptive cathodic stripping voltammetry (SW-AdCSV). The technique is based on the adso

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3

Le, Louie. "Nanocomposites and graphene oxide thin film coatings on the surface of fiber reinforced composites for enhanced flame retardancy." Thesis, Wichita State University, 2013. http://hdl.handle.net/10057/6425.

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4

Pant, Bharat Raj. "A Comparative Study on P-type Nickel Oxide and N-type Zinc Oxide for Gas Sensor Applications." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1525473245395728.

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5

Dorenkamp, Yvonne Jeannette. "Inelastic H-Atom scattering from ultra-thin films." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://hdl.handle.net/11858/00-1735-0000-002E-E49B-7.

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6

Ferrah, Djawhar. "Etude des propriétés physico-chimiques d'interfaces par photoémission." Thesis, Ecully, Ecole centrale de Lyon, 2013. http://www.theses.fr/2013ECDL0048/document.

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L'objectif de cette thèse est d'étudier les propriétés physico-chimiques des surfaces et des interfaces des couches minces par spectroscopie de photoémission (XPS), diffraction des photoélectrons (XPD), et la photoémission résolue en temps (PTR). Les expériences sont réalisées en utilisant une source standard des rayons X AlKa à l'INL ou les rayons X mous auprès du synchrotron Soleil. La première étude sur le système Pt/ Gd203/ Si(111) a montré que le transfert de charge entre le Pt et 0 à l'interface Pt/Gd203 implique un déplacement chimique de niveau Pt4f sans modification des caractéristiqu

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7

Ly, Kally Chein Sheng 1992. "Fabricação e caracterização de filme fino regenerável hidrofóbico." [s.n.], 2017. http://repositorio.unicamp.br/jspui/handle/REPOSIP/330349.

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Orientador: Antonio Riul Júnior<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin<br>Made available in DSpace on 2018-09-02T14:50:41Z (GMT). No. of bitstreams: 1 Ly_KallyCheinSheng_M.pdf: 2442128 bytes, checksum: 86716c6c19fa3a9db425b32c36463141 (MD5) Previous issue date: 2017<br>Resumo: Materiais biomiméticos são inspirados em estruturas biológicas para a obtenção de propriedades e funcionalidades específicas. Dentre os materiais biomiméticos, os que são capazes de se regenerar (self-healing) despertaram grande interesse pelo potencial de aplic

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8

Lacovig, Paolo. "Electronic structure, morphology and chemical reactivity of nanoclusters and low-dimensional systems: fast photoemission spectroscopy studies." Doctoral thesis, Università degli studi di Trieste, 2010. http://hdl.handle.net/10077/3685.

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2008/2009<br>L'obiettivo di questa tesi è l'applicazione della spettroscopia di fotoemissione allo studio di nanoparticelle supportate e di sistemi a bassa dimensionalità. Ad una primo periodo dedicato allo sviluppo del rivelatore e del software per un nuovo analizzatore d'energia per elettroni installato presso la linea di luce SuperESCA ad Elettra, è seguita una fase durante la quale ho eseguito una serie di esperimenti mirati ad esplorare le potenzialità del nuovo apparato sperimentale. Il primo risultato ottenuto riguarda la comprensione della relazione che intercorre tra le variazi

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9

Guan, Jingcheng. "Modelling zinc oxide thin-film growth." Thesis, Loughborough University, 2018. https://dspace.lboro.ac.uk/2134/36311.

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Photovoltaics have a significant role in the solution of energy supply and energy security. Research on photovoltaic devices and their production processes has been carried out for decades. The transparent conducting oxide layer, in the photovoltaic solar cell, composed of aluminium doped zinc oxide, is produced through deposition techniques. By modelling these depositions using classical molecular dynamics, a better understanding on the short term kinetics occurring on the growing surface has been achieved. Compared to the molecular dynamics, the employment of the adaptive kinetic Monte Carlo

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10

Li, Sonny X. "Nitrogen doped zinc oxide thin film." Berkeley, Calif. : Oak Ridge, Tenn. : Lawrence Berkeley National Laboratory ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2003. http://www.osti.gov/servlets/purl/821916-VLVAK9/native/.

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Thesis (M.S.); Submitted to the University of California, Berkeley, 210 Hearst Mining Memorial Bldg., Berkeley, CA 94720 (US); 15 Dec 2003.<br>Published through the Information Bridge: DOE Scientific and Technical Information. "LBNL--54116" Li, Sonny X. USDOE Director. Office of Science. Basic Energy Sciences (US) 12/15/2003. Report is also available in paper and microfiche from NTIS.

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11

Özkan, Zayim E., and N. Karamahmutoglu. "Carbon Nanotubes Doped Vanadium Oxide Thin Film." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35004.

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Vanadium oxide films were prepared by chemical coating techniques on glass and ITO coated glass substrates. Vanadium oxide films were doped with carbon nanotubes and examined their optical band gap and structures. The effects of carbon nanotubes on visible light absorbance and band gap energies were observed. Electrochemical, structural and optical studies on vanadium oxide coatings were reported in the liquid electrolyte. Optical constant such as refractive index, extinction coefficient, and band gap calculation was done by NKD analyzer. Effect of CNT into vanadium oxide films structural

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12

Meng, Keng-Yuan. "Magnetic Skyrmions in Oxide Thin Film Heterostructures." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1562856036665345.

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13

Zhang, Jiawei. "Oxide-semiconductor-based thin-film electronic devices." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/oxidesemiconductorbased-thinfilm-electronic-devices(c8cde776-b68b-47b5-ab63-382a86dbb94b).html.

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Oxide semiconductors have been envisaged to find applications in ubiquitous flexible electronics in daily life such as wearable electronic gadgets to offer novel user experiences. However, one of the bottlenecks to realise these applications is a lack of oxide-semiconductor components capable of wireless communications. As Bluetooth and Wi-Fi are the two dominant communication interfaces, fast enough front-end rectifiers must be developed to operate at their gigahertz (GHz) transmission frequencies. Furthermore, despite of significant developments of n-type oxide semiconductors in the last dec

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14

Čuboň, Tomáš. "Studium optických vlastností tenkých vrstev organických fotovoltaických článků." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2017. http://www.nusl.cz/ntk/nusl-316198.

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This master´s thesis is focused on measurement of optical properties of thin layer of materials used in organic solar cells (OSC). The usage of graphene oxides and its reduced forms as parts of hole transport layer (HLT) in OSC were studied. At the beginning of the thesis, there is described basic theory necessary to understand the optical properties of thin layers. The thin layer deposition and reduction of GO are discussed too. The experimental part is aimed to the optical characterization of prepared thin films. The results from optical microscopy, UV-VIS spectroscopy, FT-IR spectroscopy an

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15

Han, Sanggil. "Cu2O thin films for p-type metal oxide thin film transistors." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/285099.

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The rapid progress of n-type metal oxide thin film transistors (TFTs) has motivated research on p-type metal oxide TFTs in order to realise metal oxide-based CMOS circuits which enable low power consumption large-area electronics. Cuprous oxide (Cu2O) has previously been proposed as a suitable active layer for p-type metal oxide TFTs. The two most significant challenges for achieving good quality Cu2O TFTs are to overcome the low field-effect mobility and an unacceptably high off-state current that are a feature of devices that have been reported to date. This dissertation focuses on improving

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16

Rossi, Leonardo. "Flexible oxide thin film transistors: fabrication and photoresponse." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/14542/.

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Gli ossidi amorfi semiconduttori (AOS) sono nuovi candidati per l’elettronica flessibile e su grandi aree: grazie ai loro legami prevalentemente ionici hanno una mobilità relativamente alta (µ > 10cm^2/Vs) anche nella fase amorfa. Transistor a film sottile (TFT) basati sugli AOS saranno quindi più performanti di tecnologie a base di a-Si e più economici di quelle a base di silicio policristallino. Essendo amorfi, possono essere depositati a basse temperature e su substrati polimerici, caratteristica chiave per l’elettronica flessibile e su grandi aree. Per questa tesi, diversi TFT sono stati

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17

Barnes, Jean-Paul L. P. Barnes. "TEM studies of thin film oxide/metal nanocomposites." Thesis, University of Oxford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398136.

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18

Lloyd, Adam L. "Modelling silver thin film growth on zinc oxide." Thesis, Loughborough University, 2017. https://dspace.lboro.ac.uk/2134/24860.

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Ag thin film growth on ZnO substrates has been investigated theoretically using multi-timescale simulation methods. The models are based on an atomistic approach where the interactions between atoms are treated classically using a mixture of fixed and variable charge potential energy functions. After some preliminary tests it was found that existing fixed charge potential functions were unreliable for surface growth simulations. This resulted in the development of a ReaxFF variable charge potential fitted to Ag/ZnO surface interactions. Ab initio models of simple crystal structures and surface

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19

Young, Sheng-Yu. "DLC thin film assisted zinc oxide nanowires growth." College Park, Md.: University of Maryland, 2008. http://hdl.handle.net/1903/8613.

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Thesis (M.S.) -- University of Maryland, College Park, 2008.<br>Thesis research directed by: Dept. of Materials Science and Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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20

Gavanier, Beatrice. "Stability of thin film insertion electrodes." Thesis, University of Southampton, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324003.

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21

Beckel, Daniel. "Thin film cathodes for micro solid oxide fuel cells." kostenfrei, 2007. http://e-collection.ethbib.ethz.ch/view/eth:29741.

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22

Wang, Chao-Hsiung. "The growth of thin film epitaxial oxide-metal heterostructures." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368667.

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23

Brown, J. R. "Tin oxide thin film gas sensors deposited by MOCVD." Thesis, Keele University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.434038.

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24

Lee, S. "Physics and modeling of oxide semiconductor thin film transistors." Thesis, University College London (University of London), 2013. http://discovery.ucl.ac.uk/1400467/.

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In this thesis, we present an intensive investigation on the analytical models to describe the field-effect mobility, the current-voltage (I-V) characteristics, and the instability mechanisms in oxide TFTs, e.g. amorphous In-Ga-Zn-O TFTs. Here, we considered the unique material properties and underlying physics of it, such as the localized tail states, the potential barriers, and the oxygen vacancies. The derived mobility model and the I-V relation for oxide TFTs have been proposed for the first time, yielding a physically-based transistor model for the circuit design and simulation. Also, we

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25

Barquinha, Pedro. "Transparent oxide thin-film transistors: production, characterization and integration." Doctoral thesis, Faculdade de Ciências e Tecnologia, 2010. http://hdl.handle.net/10362/5380.

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26

Flack, Natasha. "Thin film components for solid oxide fuel Cells (SOFCs)." Thesis, University of Liverpool, 2014. http://livrepository.liverpool.ac.uk/2007271/.

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Thin film components for solid oxide fuel cells (SOFCs) have been investigated in this thesis. This work focuses on electrolyte materials such as samarium doped ceria (SDC) and cathode materials including neodymium barium cobalt oxide (NBCO) and barium calcium yttrium iron oxide. Single layer growth of NBCO or SDC is achieved on single crystal strontium titanate (001) before these materials were grown via pulsed laser deposition as a bi-layer and multilayers. Ordered NBCO required deposition at 850°C, whereas it was found that the SDC grew with a lower surface roughness at lower temperatures o

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27

Adam, Suhare A. "Thin Film Complex Oxide Proton Conductors: Synthesis and Applications." Thesis, Harvard University, 2016. http://nrs.harvard.edu/urn-3:HUL.InstRepos:33493335.

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The performance of ultra-thin film solid oxide fuel cells (μ-SOFC) is highly dependent on the structural, microstructural and transport properties of the electrolyte. The focus of this thesis is on understanding the effect of synthesis and processing parameters of BaY0.2Zr0.8O3 (BYZ), a complex oxide proton-conducting electrolyte, on thin-film solid oxide fuel cell (SOFC) performance. The properties of BYZ thin films are highly dependent on film growth techniques and parameters. The relationship between electrolyte thickness and fuel cell performance is investigated in the ultra-thin film th

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28

Pecunia, Vincenzo. "Solution-based polymeric/metal-oxide thin-film transistors and complementary circuits." Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708401.

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29

REMONDINA, JACOPO. "Ga-rich oxide-in-oxide glass ceramics: from bulk to thin film devices." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2020. http://hdl.handle.net/10281/263429.

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In questa tesi presento il lavoro da me svolto durante il mio dottorato su film vetro-ceramici nanostrutturati contenenti ossido di gallio riguardo alla possibile uso di questa classe di materiali in geometria planare all’interno di dispositivi optoelettronici. Negli ultimi tre anni, le mie ricerche sono state rivolte alla comprensione della relazione fra la presenza delle nanostrutture – analizzate attraverso uno studio strutturale dettagliato grazie a diverse tecniche di microscopia e diffrazione in funzione delle condizioni di deposizioni e trattamenti successivi – e i meccanismi fisici di

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30

Huang, Yi-Wen, and 黃怡雯. "Low-Temperature Reduction of Thin Graphene Oxide Film." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/35869832541255533902.

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碩士<br>國立中央大學<br>化學工程與材料工程學系<br>103<br>The graphene oxide nanoparticles obtained from anodic graphite by electrochemical exfoliation, followed by electrophoretic deposition onto stainless steel or nickel substract. Another way to deposit graphene particles on non-conductive substract is used to produce graphene film, which named Evaporative Deposition(ED). By ED, graphene films can be deposit on polymer substracts like PEN and formed a flexible graphene film. The graphite film formed was reduced in two ways, vacuum treatment with heating up to 100℃ and ethanol treatment with heating up to 220℃.

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31

Wang, Guan-Ying, and 王冠穎. "Preparation of Thin Film with Reduced Graphene Oxide." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/f6fc74.

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碩士<br>逢甲大學<br>化學工程學系<br>107<br>In order to improve the interface situation that might be encountered in producing multi-layer structured device, a method using graphene oxide (GO) undergoes modification, adsorption and chemical reduction of was proposed in this study to prepare electrically conducting graphene thin films. Modified GO is able to enhance the adhesion between adjacent two layers of different materials when it is deposited as an interfacial layer. First we used a large amount of oil-water interface to graft long-chain alkyl groups to one side of GO by amidaion reaction of the -COO

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32

Yang, Chang-Ying, and 楊長穎. "Large area graphene – cobalt manganese oxide thin film for oxygen evolution reaction." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/14084524668459287138.

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碩士<br>國立中山大學<br>化學系研究所<br>104<br>It is necessary to develop clean and green energy because of the shortage of non-renewable energy. The hydrogen and oxygen generated by water splitting is one of the solution for clean energy. However, energy required for water splitting is usually greater than energy generated by water splitting. Oxygen evolution reaction (OER) is the main reason of excessive energy consumption in the splitting process, thus it is necessary to prepare a catalyst to promote the OER. In this research, by a simple redox method with heating, we successfully synthesized cobalt mang

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33

Liu, Ding-Kun, and 劉定坤. "Preparation of silk nanofibril/graphene oxide thin film nanocomposite membrane for nanofiltration." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/scxae2.

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碩士<br>中原大學<br>化學工程研究所<br>106<br>In this study, silk nanofibril(SNF) is used as main material of nanofiltration membrane. After fibrilling and crystallizing, silk fibroin(SF) transfer itself to SNF. SNF is pressure-filtrated on HPAN substrate to form composite membrane. FT-IR, TGA and DSC were chosen to characterize the fine structure and obtain the most cocoon-like fine structure which make it have the best performance compared to the rest SF membrane. UV-vis was used for solubility test of SFs and SNF. Surface properties and NF tests of SNF composite membrane and SNF/GO nanocomposite memb

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34

Khan, Mustaque Ali. "Efficient Photodetectors Based on Reduced Graphene Oxide." Thesis, 2016. https://etd.iisc.ac.in/handle/2005/4379.

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Chapter 1: In chapter 1, we have presented a brief introduction on photodetector and its various applications. Chapter 2: Chapter 2 is the discussion about experimental methods and characterization tools. In this chapter, we have briefly discussed the experimental methods we have used for preparation of our materials. Then, we have discussed the characterization techniques we have used to characterize our prepared materials. Chapter 3: We have prepared graphene oxide thin film by spin coating. Then, we have reduced it by hydrazine vapour to obtain reduced graphene oxide thin film. We hav

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35

Zhan, Hao-Zhong, and 詹皓仲. "The Affect of Different Reducing Conditions on Graphene Oxide Thin Film Semiconductor Characteristics." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/61507988147736173449.

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碩士<br>國立中正大學<br>機械工程學系暨研究所<br>101<br>This thesis aims to analyze the structural characteristics of the graphene oxide (GO) with different degree of reduction by heating with various temperatures (from27℃ to 500℃) in a high vacuum (3 ~ 5 x10-6 torr) and different thickness are investigated.First, the use of graphene oxide aqueous of solution process is formed in two different film thickness by two ways: (1) Dip-coating, about 20 nm and (2) Spin-coating, about 1 ~ 5 nm. The reduced GO thin films were characterized by X-ray photoelectron spectroscopy, Raman spectroscopy and electrical transport m

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36

Chiang, Ju-Yun, and 姜如芸. "Feasibility of Polydopamine/Graphene Oxide Thin-Film Composite Membrane for Forward Osmosis Application." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/33tsea.

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碩士<br>國立清華大學<br>材料科學工程學系<br>105<br>In pursuance of addressing the global water shortage problem, this work was designed to fabricate carbon materials-based forward osmosis thin-film composite (FO-TFC) membranes with high flux and high salt rejection properties. In this study, a novel method has been developed which was conducted by coating the surface of a reduced graphene oxide (rGO) modified poly(ethylene terephthalate) (PET) nonwoven fabric with polydopamine/graphene oxide (PDA/GO) prior to the interfacial polymerization of trimesoyl chloride (TMC) and m-phenylenediamine (MPD). Results sho

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"Synthesis and Characterization of Thionated Reduced Graphene Oxides and Their Thin Films." Doctoral diss., 2013. http://hdl.handle.net/2286/R.I.21014.

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abstract: Thiol functionalization is one potentially useful way to tailor physical and chemical properties of graphene oxides (GOs) and reduced graphene oxides (RGOs). Despite the ubiquitous presence of thiol functional groups in diverse chemical systems, efficient thiol functionalization has been challenging for GOs and RGOs, or for carbonaceous materials in general. In this work, thionation of GOs has been achieved in high yield through two new methods that also allow concomitant chemical reduction/thermal reduction of GOs; a solid-gas metathetical reaction method with boron sulfides (BxSy)

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Chen, Yi-Shiang, and 陳奕翔. "Preparation and characterization of MnOx/graphene oxide nanocomposite thin films." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/38751880443947495543.

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碩士<br>大同大學<br>材料工程學系(所)<br>101<br>This research mainly manganese oxide / graphene oxide as a composite material, the use of graphene oxide with high specific surface area in order to enhance the reaction of manganese oxide. Scan using SEM EDS mapping graphene oxide of manganese in the distribution of the surface, namely that the addition of potassium permanganate different weight ratio will be 125% coverage is wide. The XRD and EPR, respectively, adding that the high proportion of potassium permanganate is obtained when a larger proportion of manganese (IV) and capacitance value is higher. Add

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Lee, Chun-Yuan, and 李浚源. "Properties of graphene thin films derived from high temperature reduced graphene oxide/polyethylene glycol." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/39346699920515877541.

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碩士<br>中原大學<br>化學研究所<br>100<br>Graphene with fast electron mobility, high mechanical strength, high conductivity and transparent characteristics, therefore, becomes very wide applications in electronic components. In this study, graphene was reduced from graphene oxide (GO) by using Hummer’s methods. By adding commercially available polyethylene glycol (PEG) with molecular weight 600, 6000, 20000, and 35000 for slurry formation, we developed the graphene films on glass substrate with good conductivity for electrode applications. The characteristics of graphene/PEG films were studied by using SE

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40

Akther, Nawshad. "Development of Thin-Film Composite Membranes Incorporated With Graphene Oxide and Derivatives for Forward Osmosis Processes." Thesis, 2020. http://hdl.handle.net/10453/149327.

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University of Technology Sydney. Faculty of Engineering and Information Technology.<br>Graphene oxide (GO) has been used to improve the anti-fouling and separation performance of the thin-film composite (TFC) membranes. Nonetheless, very few studies provided an in-depth explanation of the possible interaction between GO and polymer matrix that alter the membrane properties and performance. Thus, the overall aim of this study was to develop high-performance GO-based polyamide (PA) TFC forward osmosis (FO) membranes by systematically investigating the effect of GO and its derivatives on the modi

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YANG, CHIH-PENG, and 楊志鵬. "Characteristics of Graphene-oxide Thin Film and its Bi-layer Structure for Resistance Random Access Memory Applications." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/n7d569.

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碩士<br>國立高雄應用科技大學<br>電子工程系碩士班<br>104<br>Graphene has many advantageous properties and it has been studied for many applications. Because of process integration and various promising properties, graphene oxide (GO) also attracts much interest. This thesis investigated graphene oxide for applications of resistive random access memory (RRAM). The GO film also stacked on a SiO2 layer to be a bi-layer structure for RRAM applications. The GO RRAM device can be inversely switched by dc voltages and the related characteristics were also investigated. In addition, the influence of water vapor on the GO

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Thomas, Rajesh. "Investigations on Graphene/Sn/SnO2 Based Nanostructures as Anode for Li-ion Batteries." Thesis, 2013. http://etd.iisc.ac.in/handle/2005/3460.

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Li-ion thin film battery technology has attracted much attention in recent years due to its highest need in portable electronic devices. Development of new materials for lithium ion battery (LIB) is very crucial for enhancement of the performance. LIB can supply higher energy density because Lithium is the most electropositive (-3.04V vs. standard hydrogen electrode) and lightest metal (M=6.94 g/mole). LIBs show many advantages over other kind of batteries such as, high energy density, high power density, long cycle life, no memory effect etc. The major work presented in this thesis is on the

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Thomas, Rajesh. "Investigations on Graphene/Sn/SnO2 Based Nanostructures as Anode for Li-ion Batteries." Thesis, 2013. http://etd.iisc.ernet.in/2005/3460.

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Li-ion thin film battery technology has attracted much attention in recent years due to its highest need in portable electronic devices. Development of new materials for lithium ion battery (LIB) is very crucial for enhancement of the performance. LIB can supply higher energy density because Lithium is the most electropositive (-3.04V vs. standard hydrogen electrode) and lightest metal (M=6.94 g/mole). LIBs show many advantages over other kind of batteries such as, high energy density, high power density, long cycle life, no memory effect etc. The major work presented in this thesis is on the

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Kun-ChinHsieh and 謝坤晉. "Effect of Annealing Treatment on Thin Film Microstructure, Electrical and Optical Properties in the Indium Gallium Zinc Oxide/Titanium/Graphene/Polyimide Composite Films." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/u7x3pe.

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碩士<br>國立成功大學<br>機械工程學系<br>105<br>This thesis use CVD method to create high quality graphene. First, we investigate graphene quality by Raman Analysis, Four-Point Probe and microstructure analyses. After a long test, we have made a high quality single-layer graphene successfully, and use the wetting transfer method to transfer this graphene to polyimide substrate. At last, depositing Ti and IGZO on graphene/polyimide to prepare a composite film by Magnetron Sputter. The results show that the sheet resistance of the samples with the graphene film is 10 times lower than that the samples without g

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Chen, Wei-Chun, and 陳崴群. "Influence of concentration of reduced graphene oxide on properties of sol-gel prepared Al-doped Zinc oxide thin films." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/3upq2s.

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碩士<br>國立中興大學<br>光電工程研究所<br>101<br>The addition of reduced graphene oxide (RGO) to aluminum doped zinc oxide was studied and analysis conducted on film for its electrical and optical characteristics. Sol-gel was applied in a circular pattern on glass substrate with the weight concentration of 0.0 wt%, 1.0 wt%, 1.5 wt% and 3.0 wt% as the proportion of mixing. A gaseous mixture of Ar:H2=9:1 was passed through furnace pipe and the substrate was annealed in 500℃ for an hour. In electric measurement, the resistivity was 1.11ⅹ10-1 Ω-cm for RGO-free AZO film, and the lowest resistivity was 8.11ⅹ10-3

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Zbeda, Salma Gumaa Amar. "Multilayer graphene modified metal film electrodes for the determination of trace metals by anodic stripping voltammetry." 2013. http://hdl.handle.net/11394/3802.

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Magister Scientiae - MSc<br>In this study multilayer graphene nanosheets was synthesize by oxidizing graphite to graphene oxide using H2SO4 and KMnO4 followed by reduction of graphene oxide to graphene using NaBH4. The graphene nanosheets were characterized by Fourier Transform Infrared (FTIR) and Raman spectroscopy, high resolution transmission electron microscopy (HRTEM), Scanning electron microscopy (SEM) and X-ray diffraction (XRD). HRTEM images showed that the multilayer graphene were obtained. The graphene was immobilized directly onto a glassy carbon electrode using the drop coating tec

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Chiou, Chuang-Fu, and 邱創富. "Electrical and humidity sensing properties of reduced graphene oxide thin film fabricated by layer-by-layer covalently anchoring on flexible substrate." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/06803273987508265099.

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碩士<br>中國文化大學<br>化學系應用化學碩士班<br>102<br>Novel flexible humidity sensors were fabricated by layer-by-layer (LBL) covalently bonding graphene oxide (GO) to a gold electrode on a plastic substrate using a peptide chemical protocol and then reducing in-situGO film to a partially reduced GO film. The effect of the duration of reduction of GO film on the electrical and humidity propertiesof the reduced GO film was investigated. This flexible impedance-type humidity sensor exhibited a strong water resistance, a wide working range of humidities, a short response/recovery time, a weak dependence on temper

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Yang, You-Hao. "Processing and Gas Barrier Behavior of Multilayer Thin Nanocomposite Films." Thesis, 2012. http://hdl.handle.net/1969.1/ETD-TAMU-2012-08-11685.

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Thin films with the ability to impart oxygen and other types of gas barrier are crucial to commercial packaging applications. Commodity polymers, such as polyethylene (PE), polycarbonate (PC) and polyethylene terephthalate (PET), have insufficient barrier for goods requiring long shelf life. Current gas barrier technologies like plasma-enhanced vapor deposition (PECVD) often create high barrier metal oxide films, which are prone to cracking when flexed. Bulk composites composed of polymer and impermeable nanoparticles show improved barrier, but particle aggregation limits their practical utili

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CHEN, CHIAO-YI, and 陳喬毅. "A Study of the Electrophoretic Deposition of Graphene Oxide Thin Films in Asymmetrical AC Electric Fields." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/63tay6.

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碩士<br>大葉大學<br>醫療器材設計與材料碩士學位學程<br>106<br>In the present study, graphene oxides (GrO) were synthesized by the Modified Hummer method with natural graphite powder as the raw material. The chemical structures and the surface morphology of the as-synthesized GrO were characterized by Raman and FE-SEM, respectively where aqueous GrO dispersions were prepared by adding aliquots of alcohol as solvent. The GrO thin films were prepared by electrophoretic deposition (EPD) over Indium Tin Oxide (ITO) glass substrates in asymmetric alternating current (AAC) and direct current (DC) electric fields, respecti

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WANG, YIN-YIN, and 王尹吟. "A Study on Hybrid Thin Film of Ag Nanowire and Reduced Graphene Oxide Prepared by H2-Low Damage Plasma as Flexible Transparent Electrode." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/13806060659432834588.

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