高等学校化学学报2018，Vol.39Issue(3)：545-551,7.DOI:10.7503/cjcu20170285
裂纹缺陷对钙钛矿太阳电池性能的影响
Influence of Crack-defect on Perovskite Solar Cells Performance
摘要
Abstract
The influences of crack-defect on the quality of perovskite light absorber and the photovoltaic performance of(FAPbI3)0.85(MAPbBr3)0.15 perovskite solar cells(PSC)were investigated.The scanning elec-tron microscopy, X-ray diffraction, UV-Vis absorption and transient absorption, static photoluminescence spectroscopies were carried out to study the differences in the devices with and without crack-defect. The ex-perimental results show that, when there are obvious cracks on the surface, the films have worse crystallinity and weaker absorption,which could lead to the decrease of carrier extraction efficiency and increase of internal electron-hole recombination. As a result, the power conversion efficiency(PCE)of PSC with crack-defect is only 15.74%,while that of PSC without crack-defect show the highest PCE of 18.22%. Therefore,acquiring high quality of pe-rovskite thin film without crack-defect can reduce internal electron-hole recombination,im-prove carrier extraction efficiency and be beneficial to further enhance the photovoltaic performance of perovs-kite solar cells.关键词
钙钛矿太阳电池/裂纹缺陷/光伏性能Key words
Perovskite solar cell/Crack-defect/Photovoltaic performance分类
化学化工引用本文复制引用
刘国震,叶加久,侯昭升,陈双宏,胡林华,潘旭,戴松元..裂纹缺陷对钙钛矿太阳电池性能的影响[J].高等学校化学学报,2018,39(3):545-551,7.基金项目
国家高技术研究发展计划项目(批准号:2015AA050602)、国家自然科学基金(批准号:61404142)和中国科学院BIC国际合作局对外合作重点项目(批准号:GJHZ1607)资助.Supported by the National High Technology Research and Development Program of China(No.2015AA050602),the National Natural Science Foundation of China(No.61404142)and the External Cooperation Program of BIC,Chinese Academy of Sciences(No.GJHZ1607). （批准号:2015AA050602）
