Enhanced intermolecular interactions to improve twisted polymer photovoltaic performance

• 来源期刊: 中国科学:化学（英文版）
• 年，卷（期）: 2019,（3）
• 页码范围: 370-377
• 页数: 8页
• 语种: 英文

摘要

1 Introduction Bulk heterojunction (BHJ) polymer solar cells (PSCs),which are composed of a polymer donor and a small molecular acceptor,have attracted extensive research interest owing to their light weight,flexibility and large-area manufacturing compatibility [1,2].Currently,the power conversion efficiencies (PCEs) of non-fullerene (NF) PSCs have surpassed the best value of fullerene-based PSCs [3-10].