| 研究生: |
吳震緯 Wu, Jhen-Wei |
|---|---|
| 論文名稱: |
利用微奈米壓印技術提升有機太陽能電池效率之研究 Efficiency improvement of polymer solar cells by nanoimprinting |
| 指導教授: |
施權峰
Shih, Chuan-Feng |
| 學位類別: |
碩士 Master |
| 系所名稱: |
電機資訊學院 - 電機工程學系 Department of Electrical Engineering |
| 論文出版年: | 2009 |
| 畢業學年度: | 97 |
| 語文別: | 中文 |
| 論文頁數: | 93 |
| 中文關鍵詞: | 太陽能電池 、有機 、壓印 |
| 外文關鍵詞: | organic, solar cell, nanoimprint |
| 相關次數: | 點閱:73 下載:1 |
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本論文主要的研究方向著重在奈米壓印對於有機太陽能電池的影響,我們使用P3HT和PCBM兩種高分子材料混合當作太陽能電池的主動層,製作最基本的結構(Glass/ITO/PEDOT:PSS/P3HT&PCBM/Al)。藉著調整主動層的厚度以及元件後退火的溫度和時間來找出對元件基本參數較佳的條件。
然後將一個經過蝕刻處理的Silicon基板當作模具,在室溫下對主動層做奈米壓印,並探討薄膜表面型態的變化以及壓力的影響。可以發現薄膜表面型態的變化能夠幫助光電流的增加,而壓力影響到元件的開路電壓以及填充因子,讓有機太陽能電池的效率提昇。
最後會探討在加熱的情況下,使用平坦的Si基板對元件背電極壓印。觀察在加熱結合加壓的情況下,對元件效能的提昇。藉由這種方式來讓金屬電極以及有機薄膜之間有更好的接觸,增加載子的遷移率,幫助元件的短路電流和填充因子增加。
The main research in this paper discusses the effect caused by nanoimprinting for organic solar cells. We use two types of mixed polymer materials, P3HT and PCBM, as active layer of solar cells and produce the basic structure (Glass / ITO / PEDOT: PSS/P3HT & PCBM / Al). By adjusting the thickness of active layer, temperature and time of post-annealing, the device with better performance can be achieved.
The technology of nanoimprinting is applied here. We use silicon substrate, which surface has been etched, as the stamp and apply nanoimprinting on the active layer at room temperature. Then we discuss the change of film surface and pressure effect for film. We find the change of film surface increase the photocurrent and the pressure can affect components of the open circuit voltage and fill factor. They can make the organic solar cell more efficiency.
At final, we use flat substrate of Si stamp to imprinting the back electrode of device at heating condition. And observe the improvement of device performance under both heating and pressurizing. By applying this method, better contact between metal electrode and organic film can be achieved, and the mobility of carriers is increased, too. The short-circuit current and fill factor of components are improved.
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