臺灣博碩士論文加值系統

電致色變(electrochromism，簡稱EC)的應用在近年來已受到廣泛的注意，它可以應用在數字顯示器或調節光線入射量的車窗與房屋的窗戶，以及反強光後視鏡和安全眼鏡等等。電致色變材料可分為有機(organic)及無機(inorganic)兩大類，無機材類如ITO，WO3，NiOx等等，它的最大優點在於具有不受環境影響的優勢，其中氧化鎢具有高穿透率之對比。
本實驗是以溶膠凝膠(sol-gel)方法來進行製備鍍膜，它具有低成本的優勢，且可鍍於大面積之底材。首先以溶膠凝膠(sol-gel)法製備氧化鎢鍍液，以不同的前驅物(氯氧化鎢及氯化鎢),加上不同的催化劑，ITO玻璃為底材進行旋轉塗佈(spin-coating)，最後以紅外線(IR) 熱處理，以形成氧化鎢薄膜。分別探討以酸及鹼為催化劑對鍍膜之影響，以及變色效果之優劣。最後以SEM及XRD觀察其表面結構及表面晶型，再利用循環伏安與UV 紫外線光譜測試變色能力及穿透率。

Electrochromism is currently attracting more attentions from the academia and industries. There are many commercial applications for the electrochromic devices, such as sunroof window in a car, smart windows in order to balance the lighting in a house, antiglare mirror and electrochromic displays. Electrochromic materials include two types that are inorganic and organic ones. Especially for the inorganic type it can tolerate the dramatic environmentally changes, the typical materials are ITO, WO3 and NiOx, etc. The WO3 is the most investigated inorganic material, cause of its high transmittance difference.
In this study sol-gel method is main concerned for the preparations of the tungsten oxide. The method has some advantages, which are low cost, easy to scale up to the large surface area and even the different aspect. At first, the solutions of sol-gel were prepared by using different precursor and catalyst (precursor : WOCl4 , WCl6), and spin-coating process used to deposit tungsten oxide film on the ITO glass, then conducted with the IR heat treatment. The deposited films were characterized by X-ray diffraction, scanning electronic microscopy and α-step film thickness. Several tungsten precursors were investigated in this study. The acid and base sol-gel solutions are also tested to observe the coloration of electrochromical films.
From the CV/UV-VIS spectra we found that the sol-gal method is promising and WCl6 precursor is the better one.

目錄
摘要 ………………………………………………………………Ⅰ
Abstract …………………………………………………………Ⅱ
目錄 ………………………………………………………………Ⅲ
圖目錄 ……………………………………………………………Ⅶ
表目錄 ……………………………………………………………Ⅹ
第一章 序論 ………………………………………………………1
1-1.前言 …………………………………………………………1
1-2.文獻回顧 ……………………………………………………4
1-3.研究目的 ……………………………………………………7
第二章 實驗原理 …………………………………………………8
2-1.溶膠凝膠法(Sol-Gel)的歷史 ……………………………..8
2-2.溶膠凝膠法(Sol-Gel)的原理 …………………………….9
2-3.電致色變原理 …………………………………………….12
2-4.電致色變方法 …………………………………………….16
第三章 實驗方法 ……………………………………………….19
3-1.藥品 ……………………………………………………….19
3-2.儀器 ………………………………………………………..21
3-3.溶凝膠法實驗裝置 ………………………………………23
3-4. 溶凝膠法實驗程序 ………………………………………25
3-4-1. 溶凝膠法之程序 …………………………………25
3-4-1-1.氧化鎢電致色變材料製備及檢測程…….….……26
3-4-2.銦錫氧化物導電玻璃 …………………………………27
3-4-2-1.銦錫氧化物導電玻璃之底材 ……………………..27
3-4-2-2.銦錫氧化物導電玻璃之前處理 ………………….27
3-4-3.不同之鍍液組成 ………………………………………28
3-4-4.試片鍍覆之步驟 ………………………………………28
3-5.尋找最佳化之鍍膜條件 ………………………………….29
3-5-1.不同前趨物對鍍膜之影響 ……………………………29
3-5-2.旋轉塗佈轉速及時間對鍍膜之影響 …………………29
3-5-3.熱處理對鍍膜的影響 …………………………………29
3-6.鍍膜之晶相分析 …………………………………………..29
3-7.鍍膜之表面結構 ………………………………………….29
3-8.鍍膜之電致色變性質 ……………………………………..30
3-8-1.電致色變裝置 …………………………………………30
3-8-2.循環伏安圖 ……………………………………………30
3-8-2-1.氧化還原測試 …………………………………….30
3-8-2-2.壽命週期測試 …………………………………….30
3-9.紫外線光譜分析 ………………………………………….31
3-10.膜厚測量 ………………………………………………31
第四章 結果與討論 …………………………………………….32
4-1.溶膠凝膠法中成份對鍍膜之影響 ………………………..32
4-1-1.不同配方製備氧化鎢對鍍膜之影響 ………………32
4-1-2.不同配方所製氧化鎢鍍膜之SEM 圖 ………………...33
4-1-3.不同配方製備氧化鎢薄膜之XRD 分析 …………...36
4-1-4.不同配方製備氧化鎢薄膜之循環伏安圖分析 …..…38
4-1-5.不同配方製備氧化鎢薄膜穿透率比較 ……………41
4-1-6.不同配方製備氧化鎢薄膜之附著力測試 …………42
4-2.旋轉塗佈之條件 ………………………………………….44
4-2-1.轉速對鍍膜膜厚之影響 ………………………………44
4-2-2.時間對鍍膜膜厚之影響 ………………………………46
4-3.壽命週期測試 …………………………………………….47
4-4.熱處理溫度對鍍膜表面之影響 …………………………..49
4-5.電致色變裝置結果展示 ………………………………….52
第五章 結論 ………………………………………………….53
第六章 參考文獻 …………………………………………….55
附錄一. 不同配方之薄膜之XRD分析圖 ………………………59
附錄二. 不同配方之薄膜穿透率 ………………………………62
附錄三. 旋轉塗佈不同操作條件之膜厚 ………………………65
附錄四. 薄膜附著力測驗方法 …………………………………69
附錄五. 氧化銦錫玻璃之規格 …………………………………71

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