Ternary polythiophene enables over 17% efficiency organic solar cells
Qi Ai, Zhihui Lin, Xiangxi Wu, Yufan Zhu, Ke Wang, Xiaojun Li, Jianqi Zhang, Dan He, Yongfang Li, Fuwen Zhao
Abstract
Two ternary polythiophenes (PTs), PT-CN and PT-2CN, as donors are developed to deepen energy levels, reduce miscibility and regulate crystallinity. PT-CN:BTP-eC9 based OSCs gain an impressive PCE of 17.27%, which is the record for PT-based OSCs.
Topics & Concepts
PolythiopheneTernary operationCrystallinityMiscibilityOrganic solar cellMaterials scienceChemical engineeringConductive polymerPolymerComputer scienceComposite materialEngineeringProgramming languageOrganic Electronics and PhotovoltaicsConducting polymers and applicationsPerovskite Materials and Applications