Organic Semiconductor Interfaces and Their Effects in Organic Solar Cells  

作　　者：Chuanfei Wang Weidong Li Qi Zeng Xianjie Liu Mats Fahlman Qinye Bao 

机构地区：[1]School of Materials Science and Engineering,Ocean University of China,Qingdao,Shandong,266100 China [2]School of Materials Science and Engineering,Shanghai University of Engineering Science,Shanghai,201620 China [3]Laboratory of Organic Electronics,ITN,Linköping University,Norrköping,60174 Sweden [4]School of Physics and Electronic Science,East China Normal University,Shanghai,200241 China [5]Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and Perception,Institute of Optoelectronics,Fudan University,Shanghai,200433 China

出　　处：《Chinese Journal of Chemistry》2023年第24期3792-3805,共14页中国化学（英文版）

基　　金：supported by the National Key Research and Development Program of China(2022YFB3803300);the National Natural Science Foundation of China(22279034,52261145698);the Fundamental Research Funds for the Central Universities,China(842312010,862201013163);Shanghai Science and TechnologyInnovationActionPlan(22ZR1418900).

摘　　要：Energy levels and energy level alignment at interfaces play a decisive role in designing efficient and stable organic solar cells(OSCs).In this review two usually used technologies in organic photovoltaic communities for measuring energy levels of organic semiconductors,photoelectron spectroscopy and electrochemical methods,are introduced,and the relationships between the values obtained from the corresponding techniques are compared.The energy level and energy level alignment across the interfaces involved in solution processed organic photovoltaics are described,and the corresponding integer charge transfer model for predicting and explaining energy level alignment is presented.The effects of the interface properties in designing efficient binary and ternary OSCs were discussed.The effects of environmental factors mainly including water vapor,oxygen gas and thermal annealing on energy levels and energy level alignment involved in photoactive layers,and the subsequent effects on the corresponding OSC properties are given.

关 键 词：Organic solar cells INTERFACES Donor-acceptor systems Electron transfer Electronic Structures EFFICIENCY 

分 类 号：TM914.4[电气工程—电力电子与电力传动]