Development of a High-Performance Donor Acceptor Conjugated Polymer: Synergy in Materials and Device Optimization

作者：Gao Mei; Subbiah Jegadesan; Geraghty Paul B; Chen Ming; Purushothaman Balaji; Chen Xiwen; Qin Tianshi; Vak Doojin; Scholes Fiona H; Watkins Scott E; Skidmore Melissa; Wilson Gerard J; Holmes Andrew B; Jones David J; Wong Wallace W H

来源：Chemistry of Materials, 2016, 28(10): 3481-3487.

DOI：10.1021/acs.chemmater.6b01194

The development of a high-performance polymer PBDT-BT for bulk heterojunction solar cell devices is summarized. The polymer was first synthesized by Stille polycondensation, and solar cell devices in conventional geometry were optimized through the use of a lithium salt cathode interlayer reaching 6% power conversion efficiency. Improvements were made to the synthesis of the polymer using Suzuki polycondensation giving high-molecular weight material in the M-n = 100 kg/mol range. Further device optimization in inverted geometry gave power conversion efficiency of over 9%. The synthesis scalability as well as the batch-to-batch reproducibility of the polymer were extensively investigated.

• 出版日期2016-5-24