11.2% Efficiency all-polymer solar cells with high open-circuit voltage

论文摘要

Herein,we fabricated all-polymer solar cells（all-PSCs）based on a fluorinated wide-bandgap p-type conjugated polymer PM6 as the donor,and a narrow bandgap n-type conjugated polymer PZ1 as the acceptor.In addition to the complementary absorption and matching energy levels,the optimized blend films possess high cystallinity,predominantly face-on stacking,and a suitable phase separated morphology.With this active layer,the devices exhibited a high Vocof 0.96 V,a superior Jscof 17.1 mA cm-2,a fine fill factor（FF）of 68.2%,and thus an excellent power conversion efficiency（PCE）of 11.2%,which is the highest value reported to date for single-junction all-PSCs.Furthermore,the devices showed good storage stability.After 80 d of storage in the N2-filled glovebox,the PCE still remained over 90%of the original value.Large-area devices（1.1 cm2）also demonstrated an outstanding performance with a PCE of 9.2%,among the highest values for the reported large-area all-PSCs.These results indicate that the PM6:PZ1 blend is a promising candidate for scale-up production of large area high-performance all-PSCs.

论文目录

• 1 Introduction
• 2 Results and discussion
• 3 Conclusions

文章来源

类型: 期刊论文

作者: Yuan Meng,Jingnan Wu,Xia Guo,Wenyan Su,Lei Zhu,Jin Fang,Zhi-Guo Zhang,Feng Liu,Maojie Zhang,Thomas P.Russell,Yongfang Li

来源: Science China(Chemistry) 2019年07期

年度: 2019

分类: 工程科技Ⅰ辑,工程科技Ⅱ辑

专业: 电力工业

单位: State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Laboratory of Advanced Optoelectronic Materials,College of Chemistry, Chemical Engineering and Materials Science, Soochow University,Department of Physics and Astronomy and Collaborative Innovation Center of IFSA, Shanghai Jiao Tong University,CAS Research/Education Center for Excellence in Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry,Chinese Academy of Sciences,Polymer Science and Engineering Department, University of Massachusetts,Materials Sciences Division, Lawrence Berkeley National Laboratory

基金: supported by the National Natural Science Foundation of China (51773142,51573120,21734009,91633301),T. P. Russell was supported by the U.S. Office of Naval Research (N0001415-1-2244)

分类号: TM914.4

页码: 845-850

总页数: 6

文件大小: 648K

下载量: 26