研究生: |
周佳璋 JIA-JHANG JHOU |
---|---|
論文名稱: |
ITO陽極微結構對有機光電異質接面元件在功率轉換效率的改善 The improvement in the power conversion efficiency of organic heterojunction photovoltaic device by patterning ITO electrode |
指導教授: |
李志堅
Chih-Chien Lee |
口試委員: |
劉舜維
SHUN-WEI LIOU 范慶麟 CHING-LIN FAN 徐世祥 SHR-SHIANG SHIU |
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: | 2012 |
畢業學年度: | 100 |
語文別: | 中文 |
論文頁數: | 88 |
中文關鍵詞: | 太陽能電池 |
外文關鍵詞: | spolar |
相關次數: | 點閱:332 下載:0 |
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本論文利用黃光微影蝕刻技術製備出具有線或點狀微結構ITO基板,並將此基板應用於有機太陽能電池,觀察不同的蝕刻深度對元件特性所造成的影響。當元件結構為ITO/subphthalocyanine /C60/bathocuproine/Al,2 nm深的線狀ITO可使元件效率從4.01%提升至4.64%。此外,藉由原子力顯微鏡的觀察,在最佳的蝕刻深度下, ITO的表面較為平滑,使得有機層與ITO的介面接觸性更佳,造成接面電阻下降和短路電流的提升,因而大幅的改善元件的效率。
In this thesis, the performances of subphthalocyanine (SubPc)/C60 heterojunction organic photovoltaic (OPV) devices were studied as a function of the micropattering produced by photolithography. The effects of the photolithography patterned indium-tin-oxide (ITO) films, including line-shape and dot-shape, with various heights were thoroughly investigated. With the OPV device consists of ITO/SubPc/C60/bathocuproine/Al, an optimum height of 2 nm of the line-shape ITO film can significantly enhance the device efficiency from 4.01% to 4.64%. Moreover, the surface roughness of the patterned ITO examined by atomic force microscopy exhibited the smoother morphology at the optimum height, leading to the improved physical contact between the organic layer and ITO film. As a result, it achieved a lower contact resistance at the anode interface and increased extraction of photocurrent, which dominates the improved device performance.
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