研究生: |
廖啟鈞 Chi-Jiun Liao |
---|---|
論文名稱: |
改變陰極對有機薄膜太陽能電池之研究 Investigation of the cathode variation of organic thin-film solar cell |
指導教授: |
李志堅
Chih-Chien Lee |
口試委員: |
王俊凱
Juen-Kai Wang 范慶麟 Ching-Lin Fan 蔡枝松 none |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電子工程系 Department of Electronic and Computer Engineering |
論文出版年: | 2007 |
畢業學年度: | 95 |
語文別: | 中文 |
論文頁數: | 72 |
中文關鍵詞: | 太陽能電池 、熱退火 、短路電流 、開路電壓 、填充因子 、功率轉換效率 |
外文關鍵詞: | thermal annealing, short circuit-cur |
相關次數: | 點閱:260 下載:1 |
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本篇論文主要探討改變不同的陰極電極(metal cathode)以及熱退火(thermal annealing)處理的方式對於元件之短路電流(short circuit-current)、開路電壓(open circuit-voltage)、填充因子(Fill factor)的變化,進而提供一個有效製程以提升有機共軛高分子太陽能電池之光電轉換效率(Power conversion efficiency)。實驗中我們利用電容-電壓曲線(Capacitance-voltage; CV)量測分析有機太陽能電池,可發現退火對於元件內部的感光層載子移動率是有影響的。此外,對於元件改變不同的陰極電極,從電容-電壓曲線分析可以發現低功函數的電極對於內部感光層可產生較大的能帶彎曲,使得有機層接面的電荷堆積量產生明顯不同,造成光電轉換效率隨著功函數能階降低而變化,最後藉由電容-電壓曲線分析和元件電流電壓量測結果我們可找出改變陰極電極功函數對於元件效率影響的關聯性。
In this study, we investigate that the influence of the metal cathode variation and the thermal annealing on the short circuit-current, open circuit-current and fill factor. By providing a effective fabrication to enhance the power conversion efficiency of the organic conjugated polymer solar cell. In CV measurements, thermal annealing affects the carrier mobility . In addition, metal cathodes with low work function can produce broader energy-band bending in its intrinsic photosensitive layers. Hence, the different charge accumulation makes power conversion efficiency varies with the work function decreasing. Finally, we can find the relationship between the work function of metal cathodes variation and efficiency of devices by measuring of capacitance-voltage and current-voltage of devices.
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