Phase-segregation free quasi-2D perovskite/organic tandem solar cells with low <i>V</i><sub>oc</sub> loss and efficiency beyond 21%
Haotian Wu, Tianyi Chen, Yaokai Li, Shitao Guan, Lin Zhang, Tingjun Chen, Yang Liu, Yizheng Jin, Lijian Zuo, Weifei Fu, Gang Wu, Hongzheng Chen
Abstract
By interface modification, low V oc loss below 0.4 V was realized for quasi-2D perovskites which is free of phase-segregation and able to fabricate perovskite/organic tandem devices with a PCE of 21.3% and T 90 over 500 hours under the MPP condition.
Topics & Concepts
TandemPerovskite (structure)Materials sciencePhase (matter)Energy conversion efficiencyChemical engineeringOptoelectronicsCrystallographyChemistryComposite materialOrganic chemistryEngineeringPerovskite Materials and ApplicationsConducting polymers and applicationsOrganic Electronics and Photovoltaics