论文部分内容阅读
The last decade has witnessed the rapid progress of bulk heterojunction(BHJ)organic solar cells and now power conversion efficiencies(PCEs)exceeding 10%have been realized in different types of organic solar cells.However,the relatively narrow absorption window of organic active layers in OSCs strongly restricts further improvement of PCE.The use of multiple materials with complementary absorptions is an effective way to broaden their absorption range and to boost the PCEs.