Achieving over 21% efficiency in inverted perovskite solar cells by fluorinating a dopant-free hole transporting material
Li Wan, Wenxiao Zhang, Wenxiao Zhang, Sheng Fu, Lijun Chen, Yueming Wang, Zhongyuan Xue, Youtian Tao, Wenjun Zhang, Wenjun Zhang, Weijie Song, Junfeng Fang
Abstract
PFDT-COOH and PFDT-2F-COOH were developed as dopant-free hole transporting materials for inverted PSCs. The PFDT-2F-COOH device obtained a high PCE of 21.68% due to the fluorination effect.
Topics & Concepts
DopantPerovskite (structure)Materials scienceEnergy conversion efficiencyOptoelectronicsChemical engineeringDopingEngineeringPerovskite Materials and ApplicationsConducting polymers and applicationsOrganic Light-Emitting Diodes Research