本研究可分為三部分，第一部分是在聚3,4-二氧乙基噻吩與聚羥甲基3,4-二氧乙基噻吩鍍液中摻混鹼修飾之碳黑進行定電位析鍍製備其複合薄膜，根據電化學阻抗圖譜與循環伏安結果得知碳黑的摻混提升薄膜導電度，且在摻混比例為1 wt%時有最佳之電致色變性質表現。另一方面，不論碳黑摻混與否，聚羥甲基3,4-二氧乙基噻吩都比聚3,4-二氧乙基噻吩有更傑出的電致色變性質表現，根據掃描式電子顯微鏡影像可推斷聚羥甲基3,4-二氧乙基噻吩之多孔性結構使其離子在薄膜中更容易移動而導致此結果。
第二部分為光電致色變元件效能最佳化，將製備之複合薄膜作為電致色變層、塗佈1-4層染敏二氧化鈦作為光陽極搭配液態電解質組裝光電致色變元件。聚羥甲基3,4-二氧乙基噻吩/碳黑之複合薄膜組裝之元件效能均優於聚3,4-二氧乙基噻吩組裝之元件，其中以塗佈3層染敏二氧化鈦光陽極之效能為最佳。
第三部分使用前面所得之最佳化元件，以1,3:2,4-二苯亞甲基山梨醇膠態電解質取代液態電解質組裝固態光電致色變元件，其電化學操作下之性能幾乎接近液態電解質之效果，但光照操作下，因其內部阻力大且去色為擴散控制，因此去色需約10分鐘且無法達到完全去色。雖然仍有不足的地方，此固態光電致色變仍較具有應用價值，其內部阻力是最需要克服的地方。

This study can be divided into three parts, and the first part is to introduce sodium hydroxide-modified carbon black to the solution of electrodeposition of poly(3,4-ethylenedioxythiophene) or poly(hydroxymethyl 3,4-ethylenedioxythiophene) to prepare the composite thin films. According to the electrochemical impedance spectroscopy and cyclic voltammetry results, introducing carbon black would enhance the conductivity of thin films. Moreover, the thin films possess the best electrochromic properties when introduce 1 wt% carbon black. On the other hand, whatever carbon black is introduced or not, poly(hydroxymethyl 3,4- ethylenedioxythiophene)’s electrochromic properties all are better than poly(3,4- ethylenedioxythiophene)’s due to its porous microstructure.
The second part is to optimize of photoelectrochromic device. We employ the composite thin films as electrochromic layer, one to four layer of dye-sensitized TiO2¬ as photoanode, and liquid electrolyte to assemble photoelectrochromic device. The device of poly(hydroxymethyl 3,4- ethylenedioxythiophene) is better than that of poly(3,4- ethylenedioxythiophene) at all aspects. Among these, that the optimized device is constituted of poly(hydroxymethyl3,4- ethylenedioxythiophene) with three layers of dye-sensitized TiO2.
In the third part, we utilize the optimized photoelectrochromic device that was found out, and employ 1,3:2,4-Dibenzylidene sorbitol as solid electrolyte to replace the liquid one. Under electrochemical operation, it performs almost as same as the liquid one did. But under illuminated operation, it requires ten minutes to bleach and can’t reach completely bleached, due to higher internal resistance and diffusion control of bleaching. Although the improvement of this solid photoelectrochromic device is still necessary, is possesses high potential for future applications.

主目錄
主目錄	IV
圖目錄	VI
表目錄	XI
第一章、緒論	1
1-1、前言	1
1-2、電致色變元件 (Electrochromic device, ECD)	1
1-3、染敏太陽能電池 (Dye-Sensitized Solar Cells, DSSCs)	3
1-4、研究動機	5
第二章、文獻回顧	7
第三章、實驗設備與方法	13
3-1、儀器設備	13
3-2、實驗藥品	14
3-3、實驗方法	15
3-3-1、研究架構	15
3-3-2、導電基材前處理	16
3-3-3、製備PEDOT-Cs與PhmEDOT-Cs複合薄膜	17
3-3-4、染敏TiO2電極之製備	18
3-3-5、電解質之製備	19
3-3-6、組裝PECD	20
3-3-7、特性分析	21
第四章、結果與討論	26
4-1、電致色變薄膜之性質探討	26
4-1-1、鍍液摻混Cs之分散性測試	26
4-1-2、薄膜電鍍行為之比較	27
4-1-3、PEDOT-Cs與PhmEDOT-Cs複合薄膜之表面性質分析	29
4-1-4、PEDOT-Cs與PhmEDOT-Cs複合薄膜之電化學與電致色變性質分析	34
4-2、液態電解質PECD(l-PECD)效能最佳化	45
4-2-1、TiO2薄膜表面性質分析	46
4-2-2、l-PECD之特性分析	50
4-2-3、效能最佳化l-PECD之特性分析	61
4-3、使用PhmEDOT-Cs組裝固態電解質PECD(s-PECD)之特性分析	71
4-3-1、電化學與電致色變性質分析	71
4-3-2、電化學與光電致色變性質分析	74
4-3-3、s-PECD與l-PECD之性質比較	85
第五章、結論	87
附錄A	89
附錄B	94
參考文獻	96
 
圖目錄
圖1-1、PECD電子迴路圖	3
圖1-2、左為EDOT單體結構，右為hmEDOT單體結構	5
圖1-3、左為PEDOT分子結構式，右為PhmEDOT分子結構式	6
圖1-4、DBS結構式	6
圖2-1、分離式光電致色變元件示意圖	10
圖2-2、合併式光電致色變元件示意圖	10
圖2-3、多功能光電致色變元件示意圖	11
圖3-1、控制ITO工作面積示意圖	16
圖3-2、控制FTO工作面積示意圖	17
圖3-3、三電極系統示意圖	18
圖3-4、三明治結構元件示意圖	20
圖3-5、左為PECD俯視圖，右為PECD側視圖	20
圖3-6、著去色應答之計算	22
圖3-7、光照測試實驗裝置	23
圖3-8、光伏性質之i-V曲線	24
圖4-1、EDOT鍍液中摻混2.5 wt%之Cs分散性測試 (a) 攪拌5分鐘後        (b) 攪拌30分鐘後 (c) 攪拌3小時後 (d) 攪拌三小時並靜置30分鐘	27
圖4-2、PEDOT-Cs電聚合之i-t圖譜	28
圖4-3、PhmEDOT-Cs電聚合之i-t圖譜	28
圖4-4、PEDOT薄膜SEM影像 (a) 5k (b) 20k (c) 50k (d) 100	30
圖4-5、1wt% PEDOT-Cs薄膜SEM影像 (a) 5k (b) 20k (c) 50k (d) 100k	30
圖4-6、PhmEDOT薄膜SEM影像 (a) 5k (b) 20k (c) 50k (d) 100k	31
圖4-7、1.0 wt% PhmEDOT-Cs薄膜SEM影像 (a) 5k (b) 20k (c) 50k (d) 100k	31
圖4-8、PEDOT-Cs表面輪廓分析	32
圖4-9、PhmEDOT-Cs表面輪廓分析	33
圖4-10、PEDOT-Cs之CV測試	36
圖4-11、PhmEDOT-Cs之CV測試	36
圖4-12、PEDOT與PhmEDOT之CV比較	37
圖4-13、1.0 wt% PEDOT-Cs與PhmEDOT-Cs之CV比較	37
圖4-14、實驗模擬之等效電路圖	37
圖4-15、PEDOT-Cs之EIS測試	38
圖4-16、PhmEDOT-Cs之EIS測試	38
圖4-17、各濃度PEDOT-Cs與PhmEDOT-Cs之Rct分析	39
圖4-18、1.0 wt% PEDOT-Cs在不同電位下之吸收度圖譜	41
圖4-19、1.0 wt% PhmEDOT-Cs在不同電位下之吸收度圖譜	42
圖4-20、1.0 wt% PEDOT-Cs與PhmEDOT-Cs之著去色吸收度圖譜	42
圖4-21、PEDOT-Cs之階梯電位應答測試	43
圖4-22、PhmEDOT-Cs之階梯電位應答測試	43
圖4-23、1.0 wt% PEDOT-Cs薄膜之

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