Efficient P3HT:PC61BM solar cells employing 1,2,4-trichlorobenzene as the processing additives

详细信息    查看全文

• 作者：Wei-chao Chen ; Man-jun Xiao ; Chun-peng Yang 杨春鹏…
• 关键词：Organic solar cells ; Crystallinity ; Additive ; Morphology
• 刊名：Chinese Journal of Polymer Science
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：35
• 期：2
• 页码：302-308
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Polymer Sciences; Industrial Chemistry/Chemical Engineering; Characterization and Evaluation of Materials; Condensed Matter Physics;
• 出版者：Chinese Chemical Society and Institute of Chemistry, CAS
• ISSN：1439-6203
• 卷排序：35

文摘

The efficiency of the poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C₆₁-butyric acid methyl ester (PC₆₁BM) based organic solar cells was enhanced by using 1,2,4-trichlorobenzene (TCB) as a processing additive to control the blend morphology. The addition of TCB improved the arrangement of P3HT which resulted in good phase separated blend films. Correspondingly, the optimized solar cells showed a power conversion efficiency (PCE) of 4.17% with a fill factor (FF) of 0.69, which were higher than those of common thermal annealing devices (PCE 3.84%, FF 0.67). The efficiency was further improved to 4.74% by thermal annealing at 150 °C for 10 min with a higher FF of 0.74.