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研究生:鄒咏易
研究生(外文):Tsou, Yungyi
論文名稱:以微波水熱反應製備應用於染料敏化太陽能 電池之多孔珠狀二氧化鈦奈米顆粒
論文名稱(外文):Microwave-assisted Hydrothermal Synthesis of Mesoporous TiO2 Beads for Use as Photoanode in Dye-Sensitized Solar Cell
指導教授:吳宛玉
指導教授(外文):Wu, Wanyu
口試委員:丁志明何偉友
口試委員(外文):Ting, JyhmingHo, WeiYu
口試日期:2012-07-23
學位類別:碩士
校院名稱:明道大學
系所名稱:材料科學與工程學系碩士班
學門:工程學門
學類:材料工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:142
中文關鍵詞:珠狀二氧化鈦微波水熱法可撓式染料敏化太陽能電池
外文關鍵詞:TiO2 beadsmicrowave assisted hydrothermaflexible dye-sensitized solar cells
相關次數:
  • 被引用被引用:1
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  • 下載下載:12
  • 收藏至我的研究室書目清單書目收藏:0
本研究以微波水熱取代兩階段製程中之第二階段製程,製備出一種新穎形貌之珠狀二氧化鈦結構並將其試作於可撓式染料敏化電池光電極上。研究中經XRD、Raman、HRTEM、XPS、BET以及 SEM等分析儀器得知,於第一階段sol-gel法後得到之粉末皆為非晶相,而經微波水熱法後可得到純anatase相。同時也發現微波水熱法相對於傳統水熱法可於相對短時間且低溫下得到良好的結晶性 anatase結晶相。除此之外,本研究也針對微波水熱參數對珠狀二氧化鈦結構之影響進行研究與探討。而透過不同的製程參數得知,微波水熱法的反應溫度以及反應時間會影響其結晶性、晶粒大小、形貌、以及表面積。而其結果也顯示以微波水熱製備之珠狀二氧化鈦除了大量縮短製程時間外,於表面積、孔隙率與染料吸附上皆優於傳統水熱法。因此本研究更進一步將所得粉體試作於可撓性DSC光電極之用並與商用 Degussa® P25二氧化鈦粉末進行比較。
In this study, we replaced the second step in the two step processes into microwave-assisted hydrothermal method to synthesis a novel TiO2 beads structure. The application of TiO2 beads on flexible dye-sensitized solar cell was also demostrated. According to the analysis of XRD, Raman, HRTEM, XPS, BET, and SEM, the obtained TiO2 powder was amorphous after the first sol-gel process. However, the TiO2 beads exhibiting pure anatase structure was obtained after the microwave-assisted hydrothermal method. Furthermore, it was found that a shorter processing time and a lower process temperature can be achieved by using microwave-assisted hydrothermal method instead of conventional hydrothermal method. Beside, the effects of the parameters in microwave-assisted hydrothermal method on the obtained TiO2 beads were also investigated in this study. By varying reaction temperature and reaction time in the micrwave-assisted hydrothermal method, the crystallinity, grain size, morphology, and surface area of the TiO2 beads were changed. The results also show that the advantage of using microwave-assisted hydrothermal method to synthesis TiO2 beads was not only the largely reduced processing time but also the better surface area, porosity, and dye adsorption of the TiO2 beads. Therefore, the TiO2 beads were also demostrated on the optical electrode of flexible dye-sensitized solar cell and compared to the commercial P-25 TiO2 powder.
摘要..........I
Abstract..........II
致謝...............III
目錄...............V
表目錄.............X
圖目錄.............XI
第一章 緒論.........1
1-1前言.............1
1-2研究動機..........5
1-3 研究目的..........7
第二章 文獻回顧........8
2-1 染料敏化太陽能電池....8
2-1-1 發展現況..........8
2-1-2 染料敏化太陽能電池構造與基本原理.......9
2-2 光電及材料二氧化鈦.........17
2-2-1二氧化鈦構造與特性........17
2-2-2 奈米多孔性珠狀結構二氧化鈦......19
2-2-3 形成機制.......23
2-3兩階段法製備二氧化鈦之粉末..........25
2-3-1 溶膠凝膠法 (sol-gel) .........26
2-3-2 水熱法 (Hydrothermal method).....28
2-4 微波輔助水熱法合成二氧化鈦..........31
2-4-1 微波簡介.................31
2-4-2 微波加熱原理..............32
2-4-3 微波裝置組成..............38
2-4-4 微波加熱特點................38
2-4-5 傳統水熱法與微波水熱法比較.......39
第三章 實驗方法與分析儀器原理..........46
3-1 實驗藥品及器材....................47
3-2 實驗設計與流程......................48
3-2-1第一階段 sol-gel法製備二氧化鈦粉體製備流程........48
3-2-2 微波水熱法合成奈米多孔性珠狀結構二氧化鈦..........49
3-3 染料敏化太陽能電池組裝............50
3-3-1 奈米二氧化鈦顆粒paste配製.......50
3-3-2 結晶性二氧化鈦薄膜電極製備.......51
3-3-3 浸泡吸附染料敏化劑..............51
3-3-4 對電極製備.....................51
3-3-5染料敏化太陽能電池組裝............51
3-4 樣品特性分析.....................52
3-4-1 表面型態觀察...................52
3-4-2 粉末結晶結構及微結構分析.........53
3-4-3成分與化學鍵結分析................54
3-4-4比表面積分析.....................55
3-4-5光學分析.........................56
3-4-6電池效率分析.....................56
第四章 結果與討論......................58
4-1 兩階段法製備珠狀二氧化鈦形成機制.......59
4-2 珠狀二氧化鈦粉體分析................60
4-2-1 珠狀二氧化鈦形貌分析..............61
4-2-2 粉體結晶結構分析..................72
4-2-3 珠狀二氧化鈦化學鍵結分析...........106
4-2-4 珠狀二氧化鈦比表面積分析 BET 分析.....112
4-3 光電極薄膜分析......................119
4-3-1 光電極薄膜形貌分析.................119
4-3-2 光電極結晶結構分析.................121
4-3-3 光電極薄膜光學分析.................122
4-3-4 效率.............................124
第五章 結論............................126
第六章 未來展望.........................128
第七章 參考文獻.........................129
附錄.................................136

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