Morphology control of organic halide perovskites by adding BiFeO3 nanostructures for efficient solar cell

Haowen Xu; Heyi Zhang; Yuhui Ma; Mao Jiang; Yewei Zhang; Yinan Wu; Haoran Zhang; Ruidong Xia; Qiaoli Niu; Xing'ao Li; Wei Huang

doi:10.1038/s41598-019-51273-y

Morphology control of organic halide perovskites by adding BiFeO₃ nanostructures for efficient solar cell

Sci Rep. 2019 Oct 28;9(1):15441. doi: 10.1038/s41598-019-51273-y.

Authors

Haowen Xu¹, Heyi Zhang¹, Yuhui Ma¹, Mao Jiang¹, Yewei Zhang¹, Yinan Wu², Haoran Zhang¹, Ruidong Xia¹, Qiaoli Niu³, Xing'ao Li⁴, Wei Huang⁵

Affiliations

¹ Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, 210023, P.R. China.
² Institute of Materials Science and Engineering, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, 210023, P.R. China.
³ Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, 210023, P.R. China. [email protected].
⁴ New Energy Technology Engineering Laboratory of Jiangsu Provence & School of Science, Nanjing University of Posts and Telecommunications (NUPT), Nanjing, 210023, P.R. China. [email protected].
⁵ Shanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xian, 710072, P.R. China.

Abstract

The morphology of perovskite light-absorption layer plays an important role in the performance of perovskite solar cells (PSCs). In this work, BiFeO₃ (BFO) nanostructures were used as additive for CH₃NH₃PbI₃ (MAPbI₃) via anti-solvent method. The addition of BFO nanostructures greatly enhanced the crystallinity, grain size and film uniformity of MAPbI₃. As a result, the charge carrier mobility and electron diffusion length increased, leading to the increase of the short circuit current (J_SC) of PSCs. This work provides a very simple but effective approach to improve the morphology of perovskite layer for efficient PSCs.