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研究生： 林信偉
Lin, Hsing-Wei
論文名稱： 用石墨烯增強銀奈米線透明薄膜的抗氧化能力
Enhancing the oxidation resistance of silver nanowire TCFs by graphene
指導教授： 謝馬力歐
Mario Hofmann
學位類別： 碩士
Master
系所名稱： 工學院 - 材料科學及工程學系
Department of Materials Science and Engineering
論文出版年： 2016
畢業學年度： 105
語文別： 英文
論文頁數： 64
中文關鍵詞： 石墨烯 、銀納米線 、抗氧化 、透明導電薄膜
外文關鍵詞： Graphene, silver nanowire, anti-oxidation, TCFs
相關次數： 點閱：84  下載：2 
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    • 我們已經用噴射沉積和真空過濾，使用氧化還原石墨烯和銀納米線的不同均
    勻薄膜，並通過循環伏安法測量其薄層電阻，透光率，和它的抗腐蝕性，以氯化
    氫（水溶液）。雖然噴墨系統顯示由石墨烯增強銀納米線的抗氧化性的成效不高。
    然而，真空泵系統有助於證明氧化還原石墨烯可以保護銀納米線。

    We have used spray deposition and vacuum filtration to make different
    homogeneous films of rGO and silver nanowire, and measured its sheet resistance,
    transmittance, and its anti-corrosion property to HCl(aq)by cyclic voltammetry.
    Although the spray system doesn't show good result of enhancing the oxidation
    resistance of silver nanowire TCFs by graphene and the spray system doesn't work
    before doing more samples. However, the vacuum pump system helps proving that rGO
    can protect silver nanowire.

    Table of contents Abstract .......................................................................................................................... 1 List of Figures ................................................................................................................. 6 List of tables ................................................................................................................. 11 Chapter 1. Introduction: .............................................................................................. 12 1.1 TCFs .................................................................................................................... 12 1.1.1 What is a TCF and what is it used for .......................................................... 12 1.1.2Promise of Ag Nanowire TCFs ...................................................................... 13 1.2Graphene material .............................................................................................. 14 1.2.1Properties and applications of graphene ..................................................... 14 1.2.1.1 The foundation of graphene .................................................... 14 1.2.1.2 Application ............................................................................... 15 1.3 Silver nanowire material .................................................................................... 17 1.3.1 What are silver nanowires? ......................................................................... 17 1.3.2Silver nanowire synthesis ............................................................................. 17 1.3.2.1 Polyol process .......................................................................... 17 1.3.2.2Seed-mediated growth ............................................................. 18 1.3.2.3Soft solution process ................................................................ 18 1.3.2.4 Template-synthesized .............................................................. 18 1.4Problems with Ag Nanowires .............................................................................. 21 1.5Project: Using graphene as corrosion barrier ..................................................... 21 1.5.1 Graphene based corrosion barriers ............................................................. 21 Chapter 2.Methods: ..................................................................................................... 22 2.1Overview ............................................................................................................. 22 2.2Spray system and ultrasoinc atomization ........................................................... 24 2.3 Vacuum pump and filter system ........................................................................ 26 2.4 Characterization ................................................................................................. 28 2.4.1 Sheet resistance measurement and sheet resistance machine .................. 28 2.4.2 Scanning electron microscope..................................................................... 32 2.4.3 Transmittance measurement andlaser transmittance detector ................. 33 2.4.4 Cyclic voltammetry measurement andcyclicvoltammetry machine ........... 35 2.5 Chemicals and characterization instruments ..................................................... 39 3.Results and discussion .............................................................................................. 41 3.1.Properties of graphene/Ag-NW hybrid films ..................................................... 41 3.1.1. Morphology ................................................................................................ 41 3.1.2 Electrical transport ...................................................................................... 42 3.2 Enhanced stability of graphene/AgNW hybrid films .......................................... 44 3.3Mechanism of corrosion protection ................................................................... 48 3.3.1Electrochemical characterization ................................................................. 48 3.3.3 Diffusion coefficient .................................................................................... 52 3.3.2Impact of morphology on corrosion protection ........................................... 54 4.Conclusions ........................................................................................................... 57 4.1. Outlook ................................................................................................................. 58 5. Reference ................................................................................................................. 59

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