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研究生： 吳炳寬
Bing kuan Wu
論文名稱： 以氧化鎢/石墨烯雙層結構提升電致色變元件之效能
Bi-Layer Structures of Tungsten oxide/Graphene for Improving Performance of Electrochromic Device
指導教授： 黃柏仁
Bohr-Ran Huang
口試委員: 周賢鎧
Shyankay Jou
郭鴻飛
Hungfei Kuo
林啟瑞
Chii-Ruey Lin
學位類別： 碩士
Master
系所名稱： 電資學院 - 電子工程系
Department of Electronic and Computer Engineering
論文出版年： 2014
畢業學年度： 102
語文別： 中文
論文頁數： 143
中文關鍵詞： WOx/G複合結構 、濺鍍 、電致色變
外文關鍵詞： WOx/G, bilayer structure, electrochromism
相關次數： 點閱：456  下載：7 
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    • 本研究探討將石墨烯與氧化鎢做結合並分析其電致色變特性。使用聚甲基丙烯酸甲酯(PMMA)為支撐以濕式轉移的方式將石墨烯轉移到ITO Glass和ITO PET，再利用不同比例氧氣的RF濺鍍系統濺鍍WOx於ITO Glass和ITO PET。電化學分析上得到WOx(280 nm)/2G/ITO-g 在ITO Glass中有較佳的擴散係數 (1.6×10-11 cm2/s) ，有較快的著、去色響應時間(著色時間2.57s, 去色時間2.43s)，及有差異性大的穿透率(62.92%)與光學密度(2.252)，其著色效率達到了54.66 cm2/C。
    將相同製程應用於ITO PET上，也能驗證石墨烯有助於提升電致色變元件，其中WOx(280 nm)/G/ITO-P 在ITO PET中有較佳的擴散係數 (2.2×10-11 cm2/s) ，有較快的著、去色響應時間(著色時間3.31s, 去色時間3.91s)，及有差異性大的穿透率(62.43%)與光學密度(2.457)，其著色效率達到了54.60 cm2/C。
    從結果可以得知WOx/G的複合結構有助於電致色變元件的提升電荷之進入總量和較多次的循環次數，有助於提升元件壽命之可靠性，將可應用在未來的節能科技上。

    The purpose of this research is to study the performance of WOx/Graphene bilayer structure. Graphene layer was first synthesized on the Cu foils by the thermal chemical vapor deposition technique (T-CVD). The graphene was then stacked onto ITO Glass and ITO PET respectively. Then WOx coated by sputtering deposition with different ratio of Ar/O2. Finally, the WOx/G bilayer structure was achieved.
    It was found that the WOx/G/ITO-g bilayer structure possessed a high diffusion coefficient (1.6×10-11 cm2/s), fast electrochromic response time (coloration time 2.57s, bleaching time 2.43s), good transmittance of 62.92% with coloration efficiency of 54.66 cm2/C.
    It was indicated that the graphene played an important role to enhance the charge intercalation capacity with good reversible electrochemical cycling of intercalation-deintercalation properties for EC device. The WOx/G bilayer structure which significantly improved the contrast, switch speed, coloration efficiency and the chemical stability might be suitable for energy saving in future technological applications.

    中文摘要 Ⅰ 英文摘要 Ⅱ 致謝 Ⅲ 目錄 Ⅳ 圖目錄 Ⅷ 表目錄 XIV 第一章 緒論 1.1 前言 1.2 研究動機 第二章 文獻回顧 2.1氧化鎢結構與性質 2.1.1 熱蒸鍍法 2.1.3 熔劑熱法與水熱法 2.2石墨烯結構、性質與應用 2.2.1 石墨烯成長機制與製備方法 2.2.2 機械剝離法 2.2.3 氧化石墨還原法 2.2.4 化學氣相沉積法 2.3智慧型變色玻璃簡介 2.3.1 光致色變原理 2.3.2 熱致色變原理 2.3.3 電致色變原理 2.3.4 氧化鎢薄膜之電致色變機制 2.3.4.a 價間電荷遷移理論 2.3.4.b 色心理論 2.3.4.c 能帶著色 第三章 實驗方法 3.1實驗流程 3.2 石墨烯之製備 3.2.1 銅箔前處理 3.2.2 石墨烯成長參數 3.3石墨烯之轉移 3.4 氧化鎢/石墨烯複合結構之製備 3.5 實驗分析儀器介紹 3.5.1 場發射掃描式電子顯微鏡 (FE-SEM) 3.5.2 X-ray 繞射儀 (X-ray diffractometer， XRD) 3.5.3拉曼光譜分析 (Raman Spectroscopy) 3.5.4 X射線光電子能譜儀 (XPS) 3.5.5 原子力顯微鏡 (AFM) 3.5.6紫外光/可見光光譜儀 (UV/VIS) 3.5.7 電化學分析儀 3.5.7.a循環伏安法 (Cyclic voltammetry, CV) 3.5.7.b計時安培法 (Chronoamperometry, CA) 第四章 結果與討論 4.1 氧化鎢薄膜於不同層數石墨烯智慧型玻璃之探討 4.1.1 WOx(440 nm)薄膜不同層數石墨烯智慧型玻璃之探討 4.1.1.a WOx(440 nm) /G結構特性分析 4.1.1.b WOx(440 nm) /G電致色變特性分析 4.1.1.c WOx(440 nm) /G光學穿透率分析 4.1.2 WOx( 280 nm)氧化鎢薄膜不同層數石墨烯智慧型玻璃之探討 4.1.2.a.1 WOx( 280 nm) /G結構特性分析 4.1.2.a.2 WOx( 280 nm) /G電致色變特性分析 4.1.2.a.3 WOx( 280 nm) /G光學穿透率分析 4.1.2.b.1 熱處理後之WO3( 280 nm) 結構特性分析 4.1.2.b.2 熱處理後之WO3( 280 nm)電致色變特性分析 4.1.2.b.3 熱處理後之WO3( 280 nm)光學穿透率分析 4.1.3 WOx(180 nm)氧化鎢薄膜不同層數石墨烯智慧型玻璃之探討 4.1.3.a WOx(180 nm)/G結構特性分析 4.1.3.b WOx(180 nm)/G電致色變特性分析 4.1.3.c WOx(180 nm)/G光學穿透率分析 4.1.4複合結構智慧型玻璃之比較 4.2 氧化鎢薄膜於不同層數石墨烯智慧型軟板之探討 4.2.1 WOx (440 nm)氧化鎢薄膜不同層數石墨烯智慧型軟板之探討 4.2.1.a WOx(440 nm) /G結構特性分析 4.2.1.b WOx(440 nm) /G電致色變特性分析 4.2.1.c WOx(440 nm) /G光學穿透率分析 4.2.2 WOx (280 nm)氧化鎢薄膜不同層數石墨烯智慧型軟板之探討 4.2.2.a WOx(280 nm) /G結構特性分析 4.2.2.b WOx(280 nm) /G電致色變特性分析 4.2.2.c WOx(280 nm) /G光學穿透率分析 4.2.3 WOx (180 nm)氧化鎢薄膜不同層數石墨烯智慧型軟板之探討 4.2.3.a WOx (180 nm)/G結構特性分析 4.2.3.b WOx (180 nm)/G電致色變特性分析 4.2.3.c WOx (180 nm)/G光學穿透率分析 4.2.4複合結構智慧型軟板之比較 4.3複合結構智慧型元件之比較 第五章 結論與未來研究 5-1 結論 5-2 未來研究 參考文獻

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