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研究生： 廖俊侯
Liao, Chun-Hou
論文名稱： 具方向性鍵結的二氧化鈦在染料敏化太陽能電池之應用
Dye-Sensitized Solar Cells Based on an Oriented Attachment Anatase TiO2 Secondary Structure
指導教授： 郭炳林
Kuo, Ping-Lin
學位類別： 碩士
Master
系所名稱： 工學院 - 化學工程學系
Department of Chemical Engineering
論文出版年： 2008
畢業學年度： 96
語文別： 中文
論文頁數： 71
中文關鍵詞： 方向性鍵結 、二氧化鈦 、紅汞 、染料敏化太陽能電池
外文關鍵詞： DSSC, oriented attachment, TiO2, Mercurochrome
相關次數： 點閱：59  下載：4 
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    • 本研究利用新穎的界面活性劑TEOA-C10製備出anatase二次結構的二氧化鈦，此二次結構是由許多的奈米粒子所組成，且粒子與粒子間的晶格藉著方向性鍵結(oriented attachment)的機制產生相同方向的排列，因此具有較快的電子傳遞速度。二氧化鈦的粒徑與二次結構，可藉由TEOA-C10的濃度來控制，且水熱溫度亦可調整其粒徑、二次結構及熱穩定性。
    利用本實驗所製備出的二氧化鈦製作成光電極時，其染料吸附能力為商用品P25的4~5倍；因此使用此光電極與紅汞(Mercurochrome)組裝成染料敏化太陽能電池時，在2微米厚度即可達到1.31%的轉化效率。如果將此二氧化鈦與P25製作成雙層的光電極時，則anatase TiO2層可以幫助P25層中的電子傳導至外電路，因此可使短路電流(Jsc)具有大幅度的提升，而當光電極的組成為（anatase TiO2 0.5微米 + P25 6微米）與（anatase TiO2 1.0微米 + P25 3微米）時，具有最佳的轉換效率－1.68~1.69%。最後將染料換成N719時，添加此層仍然能夠有效的增加光電流，其轉換效能可由3.91%增加至4.57%。

    In this study, a novel surfactant TEOA-C10 was synthesized to prepare anatase titania nanoparticles with secondary structures by a surfactant-assisted self-assembling process. The crystal lattice planes of the second structure were aligned with each other due to the “oriented attachment” mechanism, which is expected to increase the rate of electron transfer through the highly crystallized second structure. The grain size and secondary structure were controlled by changing the mole ratio of TEOA-C10 to titanium precursor and the temperature of the hydrothermal via control of the grain size, second structure, and thermal stability for the TiO2 second structure. A single-crystalline anatase photoelectrode adsorbed mercurochrome dye about 4~5 times higher as compared to P25.
    A light-to-electricity conversion yield of 1.31% was achieved by applying the titania nanomaterials with 2 micrometer thin film, and it can increase to 1.68~1.69%, if using double layer photoelectrode made by anatase titania nanoparticle and P25. When the dye was changed from mercurochrome to N719, double layer still can improve the light-to-electricity conversion efficiency from 3.91% to 4.57%.

    中文摘要..................................................I 英文摘要.................................................II 誌謝....................................................III 表目錄..................................................VII 圖目錄..................................................VII 第一章 緒論...............................................1 1-1 前言..................................................1 1-2 太陽能電池的種類......................................2 1-3 研究背景與目的........................................3 第二章 文獻回顧與理論說明.................................5 2-1 奈米粒子簡介..........................................5 2-2 二氧化鈦簡介..........................................6 2-2-1 二氧化鈦的晶體特性..................................6 2-2-2 二氧化鈦的合成方法.................................10 2-3 氮氣等溫吸附/脫附....................................12 2-4 DSSC的工作原理與組成結構.............................15 2-4-1 二氧化鈦電極.......................................17 2-4-2 染料...............................................21 2-4-3 電解質.............................................23 2-4-4 對電極.............................................23 第三章 實驗方法..........................................24 3-1 實驗藥品與設備.......................................24 3-1-1 實驗藥品及器材.....................................24 3-1-2 實驗設備...........................................24 3-2 TEOA-C10的合成及二氧化鈦的製備與鑑定.................26 3-2-1 TEOA-C10的合成.....................................26 3-2-2 二氧化鈦的製備.....................................26 3-2-3 TEM及AEM分析.......................................26 3-2-4 XRD分析............................................26 3-2-5 氮氣等溫吸附/脫附量測..............................27 3-3 paste的配製及光電極的製作與鑑定......................27 3-3-1 paste的配製........................................27 3-3-2 TiO2光電極製作.....................................27 3-3-3 SEM分析............................................28 3-3-4 光電極摩厚量測.....................................28 3-3-5 光電極吸附染料能力的測試...........................28 3-4 DSSC的相關組成製備與組裝及效能測試...................28 3-4-1 DSSC的相關組成製備.................................28 3-4-1-1 染料的配製.......................................29 3-4-1-2 電解質的配製.....................................29 3-4-1-3 白金對電極的製作.................................29 3-4-2 DSSC的組裝.........................................30 3-4-3 DSSC的效能測試.....................................30 第四章 結果與討論........................................32 4-1 TEOA-C10鑑定.........................................32 4-2 二氧化鈦特性分析.....................................32 4-2-1 TEM分析............................................32 4-2-1-1 TEOA-C10濃度的探討...............................32 4-2-1-2 不同水熱溫度的探討...............................33 4-2-3 AEM分析............................................33 4-2-2 XRD分析............................................34 4-2-3 氮氣吸脫附測試.....................................34 4-3 二氧化鈦光電極分析...................................35 4-3-1 SEM分析............................................35 4-3-2染料吸附量分析......................................36 4-4 DSSC的效能分析.......................................36 4-4-1 相同厚度下的TiO2光電極效能分析.....................36 4-4-2 複合層光電極的效能分析.............................37 第五章 結論與建議........................................64 5-1結論..................................................64 5-2建議..................................................64 第六章 參考文獻..........................................65

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