Highly efficient inverted rapid-drying blade-coated organic solar cells

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• 作者：Jung-Hao Chang^a ; Yi-Hong Chen^a ; Hao-Wu Lin^a ; ^{hwlin@mx.nthu.edu.tw} ; Yu-Ting Lin^a ; Hsin-Fei Meng^b ; En-Chen Chen^c
• 关键词：Inverted organic solar cells ; Blade coating ; Bulk hetero-junction
• 刊名：Organic Electronics
• 出版年：2012
• 期刊代码：137_15661199
• 类别：et
• 出版时间：April, 2012
• 卷：13
• 期：4
• 页码：705-709
• 文件大小：697 K

摘要

Efficient inverted bulk-heterojunction (BHJ) poly(3-hexylthiophene):[6,6]-phenyl C61 butyric acid methyl ester (P3HT:PCBM) organic solar cells fabricated by rapid-drying blade-coated were demonstrated. Optimized self-organization interpenetration networks and donor/acceptor domain sizes were obtained while maintaining the smooth surface morphology. By integrating with low-temperature-processed sol-gel ZnO electron extraction layer, power conversion efficiency (PCE) up to 4.4%under AM1.5G 1 sun illumination is achieved, compared to fast drying but low efficiency (1.2%) and high efficiency but with long-time solvent annealing treatment (4.3%) control cells deposited by spin coating in chlorobenzene (CB) and 1,2-dichlorobenzene (DCB) solution, respectively. The novel deposition technique reveals a promising process for highly efficient, high throughput, stable morphology organic solar cells fabrication.