18.01%Efficiency organic solar cell and 2.53%light utilization efficiency semitransparent organic solar cell enabled by optimizing PM6:Y6 active layer morphology

作     者：Kuibao Yu Wei Song Jinfeng Ge Kanghui Zheng Lin Xie Zhenyu Chen Yi Qiu Ling Hong Cuirong Liu Ziyi Ge 

作者机构：Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and DevicesNingbo Institute of Materials Technology&EngineeringChinese Academy of SciencesNingbo 315201China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China College of Materials Science and EngineeringTaiyuan University of Science and TechnologyTaiyuan 030024China 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2022年第65卷第8期

页      面：1615-1622页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the National Science Fund for Distinguished Young Scholars(21925506) the National Natural Science Foundation of China(U21A20331,51773212,81903743,51875384) Ningbo S&T Innovation 2025 Major Special Programme(2018B10055) CAS Key Project of Frontier Science Research(QYZDBSSW-SYS030) Ningbo Natural Science Foundation(2021J192) 

主　　题：organic solar cells solvent vapor annealing morphology optimization light utilization efficiency 

摘      要：Optimizing the photoactive layer morphology is a simple,promising way to improve the power conversion efficiencies(PCEs)of organic solar cells(OSCs).Here,we compared different post-processing treatments on PM6:Y6 blend films and relevant effects on device performances,including as-cast,thermal annealing and solvent *** solvent annealing processes can effectively improve the vertical distribution and aggregation of polymer donors and small molecule acceptors,then optimize the active layer film morphology,ultimately elevating ***,one of champion efficiencies of 18.01%was achieved based on the PM6:Y6 binary *** addition,a relatively high light utilization efficiency(2.53%)was achieved when a transparent electrode made of Cu(1 nm)and Ag(15 nm)was utilized to fabricate a semitransparent OSC with a remarkable PCE of 13.07%and 19.33%average visible-light *** results demonstrated that carefully optimizing morphology of active layer is conducive to achieving a high-performance OSC.