大面積化有機太陽能電池的製程開發與結構設計

近年來，由於有機太陽能電池具有成本低廉、製程簡單、質輕易於攜帶，且具備可撓性…等優點，所以其研究與應用越來越廣泛，此外，藉由刮刀或噴墨印刷等技術更可以使元件朝向大面積化發展，使得有機太陽能電池在未來具有很大的發展潛力。但目前的研究文獻幾乎都是以小面積的有機太陽電池為研究對象，其面積尺寸大約為幾個mm2，很少有文獻是針對大面積的元件做探討。　　而本論文研究主要方向是大面積有機太陽電池的製程開發與結構設計，重點是針對PEDOT透明電極的製程研究與柵狀電極形狀的探討。首先，利用滴定成膜的方式先在小面積元件上製作PEDOT透明電極，並透過一系列的實驗作參數最佳化，而目前最高效率可以達到1.8％左右。接著將之應用到大面積元件上並搭配ㄑ字形柵狀電極，分析不同寬度和角度的柵狀電極對有機太陽電池的特性參數影響，除了實驗數據之外，也有數值模擬結果可以驗證。　　透過本論文的研究，以期能把透明電極之製作技術應用到大面積上，降低電極的遮蔽率，增加入射光面積，並利用ㄑ字形柵狀電極結構之設計，有效將電場均勻分布於元件內，以提升Jsc和FF而進一步增加元件效率，藉此使有機太陽電池在未來更具有競爭力。

關鍵字

有機太陽能電池；透明電極；柵狀電極

並列摘要

Recently, much more attention has been put into organic solar cells due to possibilities of low materials cost, easy solution processing, light weight, and flexibility. Furthermore, the potential of scaling up to large area make it a promising alternative to inorganic solar cell. Most of the promises of the technology have been based on successful laboratory experiments on very small single devices（typically a few mm2）, and very few reports on the experimental production of large area solar cells are found in the literature. 　　In this research, the main directions focus on the PEDOT transparent electrode and metal grid patterns. First, PEDOT solution was drop-coated on small devices. Through a series of experiments for parameters optimization, the power conversion efficiency （PCE） of the device already reaches to 1.8%. Then metal grid with ㄑ shaped were applied to large area devices, analysis of different width and angle of metal grid on the characteristic parameters of organic solar cells. In addition to the experimental data, but also with numerical simulation results can be verified. 　　Through this research, it is expected to investigate the application of transparent electrode which can lower shield ratio and increase the exposure area of light, and to use metal grid patterns with ㄑ shaped structure which can effective distribute the electric field uniformity in the devices to enhance the Jsc and FF and to further increase the device efficiency. Let organic solar cells be more competitive in the future.

並列關鍵字

organic solar cell ； transparent electrode ； metal grid

參考文獻

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[2] Zhao, A. Wang, and M. A. Green, “24.5% efficiency silicon PERT cells on MCZ substrates and 24.7% efficiency PERL cells on FZ substrates,” Prog. Photovolt. : Res. Appl. 7, 471 (1999).

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大面積化有機太陽能電池的製程開發與結構設計

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