Fluorine-substituted benzothiadiazole-based hole transport materials for highly efficient planar perovskite solar cells with a FF exceeding 80

Fei Wu; Yu Ji; Cheng Zhong; Yuan Liu; Luxi Tan; Linna Zhu

doi:10.1039/c7cc04606e

Fluorine-substituted benzothiadiazole-based hole transport materials for highly efficient planar perovskite solar cells with a FF exceeding 80

Chem Commun (Camb). 2017 Aug 11;53(62):8719-8722. doi: 10.1039/c7cc04606e. Epub 2017 Jul 20.

Authors

Fei Wu¹, Yu Ji¹, Cheng Zhong², Yuan Liu³, Luxi Tan⁴, Linna Zhu¹

Affiliations

¹ Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energy, Faculty of Materials & Energy, Southwest University, Chongqing 400715, P. R. China. lnzhu@swu.edu.cn.
² Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Wuhan University, Wuhan 430072, P. R. China.
³ School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
⁴ School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, P. R. China.

PMID: 28726867
DOI: 10.1039/c7cc04606e

Abstract

Fluorine-substituted benzothiadiazole (BT) was introduced as a core structure to construct new hole transport materials. Planar perovskite solar cells with conventional materials (CH₃NH₃PbI_3-xCl_x) were fabricated. The perovskite solar cells using monofluorinated BT exhibit a leading efficiency of 18.54% with a FF as high as 81%.