Benzotriazole based polymers with different side chains employed as dopant-free hole-transporting materials for high-efficiency perovskite solar cells
Lu Yao, Guofeng You, Xuelin Wang, Zhichao He, Zhonggao Zhou, Kan Li, Hongyu Zhen, Qidan Ling
Abstract
Two benzotriazole based polymers with different side chains are developed as dopant-free hole-transporting materials for n–i–p perovskite solar cells. PBTA-26 bearing ethylhexyl side chains endow the device with an efficiency of 19.83%.
Topics & Concepts
BenzotriazoleDopantMaterials sciencePerovskite (structure)PolymerSide chainChemical engineeringPolymer chemistryDopingOptoelectronicsComposite materialMetallurgyEngineeringPerovskite Materials and ApplicationsConducting polymers and applicationsOrganic Electronics and Photovoltaics