Self-assembled naphthalimide derivatives as an efficient and low-cost electron extraction layer for n-i-p perovskite solar cells

Lingchang Li; Yongzhen Wu; Erpeng Li; Chao Shen; Hao Zhang; Xiaojia Xu; Gao Wu; Molang Cai; Wei-Hong Zhu

doi:10.1039/c9cc06345e

Self-assembled naphthalimide derivatives as an efficient and low-cost electron extraction layer for n-i-p perovskite solar cells

Chem Commun (Camb). 2019 Oct 31;55(88):13239-13242. doi: 10.1039/c9cc06345e.

Authors

Lingchang Li¹, Yongzhen Wu¹, Erpeng Li¹, Chao Shen¹, Hao Zhang¹, Xiaojia Xu¹, Gao Wu², Molang Cai², Wei-Hong Zhu¹

Affiliations

¹ Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Shanghai Key Laboratory of Functional Materials Chemistry, Feringa Nobel Prize Scientist Joint Research Centre, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China. wu.yongzhen@ecust.edu.cn.
² State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, Beijing Key Laboratory of Novel Thin-Film Solar Cells, Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, Beijing 102206, P. R. China.

PMID: 31620721
DOI: 10.1039/c9cc06345e

Abstract

Based on self-assembly, novel electron extraction layers (EELs) composed of naphthalimide (NPI) derivatives are constructed for application in n-i-p perovskite solar cells. Upon molecular energy level modulation, the power conversion efficiencies have been largely improved from 5.4% to 16%. Such low-cost and highly regulable EELs are promising for future commercial applications.