二氧化鈦奈米管電極應用於染料敏化太陽能 電池之研究

Applications of TiO2 Nanotube on the Electrode of Dye-Sensitized Solar Cell

陳胤維(Yin-Wei Chen)

國立虎尾科技大學/電機資訊學院/光電與材料科技研究所/碩士(2007年)

摘要

現今社會的發展，人們對石油的需求越來越大。但是石化燃料始終會耗盡，並帶來空氣污染。所以發展乾淨、應用廣泛、取之不盡、用之不竭的替代能源為目前當務之急。在1991年Grätzel教授發表關於二氧化鈦染料敏化太陽電池(Titania based Dye-Sensitized Solar cell, DSSC)的應用，開啟了太陽能電池的新紀元。
本研究我們針對二氧化鈦奈米管電極應用於染料敏化太陽能電池之研究，主要研究有(1)使用膠態電解質來改善液態電解質封裝困難和容易滲漏的問題(2)避免電解質於基板直接接觸而降低電池之效率(3)改善電子傳輸路徑其有效提升效率等問題。並且製作二氧化鈦緩衝層電極來探討染料敏化太陽能電池之影響。
我們將針對二氧化鈦光電極結構做了X光繞射，FESEM、紫外光/可見光光譜 、效率等分析。結果證明以二氧化鈦奈米管電極具有高比表面積可提供染料吸附，確實可有效提升電池整體效能。從我們研究結果可以證明二氧化鈦電極和TCPP染料接觸面積的重要性，它對於染料敏化太陽能電池效率的提昇，扮演重要關鍵的角色。

並列摘要

The life of mankind with the development of the technology becomes more convenience and comfortable. It also makes us to need more energy, and the development of new energy becomes very important in this year. Recently, a new type of solar cell based on dye-sensitized nano-crystalline titanium dioxide has been developed by Grätzel and coworkers. Dye-sensitized solar cells based on nano-crystalline TiO2 electrodes are currently attracting widespread attention as a low cost alternative to conventional inorganic photovoltaic devices.
In this research, applications of TiO2 nanotube electrode structures on Dye-Sensitized Solar Cell were investigated. The main items include (1) Use the gel polymer electrolyte to improve the difficult question and easy seepage of liquid electrolyte encapsulation. (2) Prevent the electrolyte and ITO-glass from being exposed to directly but reduce the efficiency of the solar cells.(3) Improve electrons and transmit in the route and raise the efficiency effectively.
We investigate these TiO2 photoelectrode structures by X-ray diffraction (XRD), Field Emission Scanning Electron Microscope(FE-SEM), Ultraviolet-Visible spectrophotometer (UV/Vis spectrophotometer), efficiency. These results provide clear evidence for the contact area between TiO2 electrode and TCPP sensitizer plays an important role on the efficiency of dye-sensitized solar cell.

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