Over 10％ efficiencies achieved for the PSCs with thick active layer based on D-A copolymer donors and various fullerene acceptors

• 来源期刊: 中国科学:化学（英文版）
• 年，卷（期）: 2015,（2）
• 页码范围: 188
• 页数: 1页
• 语种: 中文
• DOI: 10.1007/s11426-014-5313-6

摘要

In comparison with inorganic solar cells,polymer solar cells (PSCs) possess the advantages of light weight and potential low-cost production technology such as roll-to-roll printing production.And the power conversion efficiency (PCE) of the PSCs reached ca.10％ recently.However,the high PCE is limited to the PSCs with the low bandgap polymer PBDTTTs as donor and PC70BM as acceptor,and the optimized active layer thickness of the high efficiency PSCs is usually less than 100 nm.The dominant acceptor of PC70BM places serious limitation on the development of the polymer donor materials to match with PC70BM,and the thin active layer makes large area fabrication of the PSCs very difficult.