Unraveling the relationship between the phenethylammonium-induced 2D phase on the perovskite surface and inverted wide bandgap perovskite solar cell performance
Xiaomin Huo, Silvia Mariotti, Yaoyao Li, Ting Yue Guo, Chenfeng Ding, Penghui Ji, Shuai Yuan, Tongtong Li, Ning Meng, Xiaomin Liu, Jiahao Zhang, Ilhem Nadia Rabehi, Yu Zhang, Suling Zhao, Hengyuan Wang, Dandan Song, Luis K. Ono, Zheng Xu, Yabing Qi
Abstract
We studied the impact of phenethylammonium chloride on PIN-structured wide bandgap perovskite solar cells. Elimination of the 2D phase results in a champion efficiency of 20.61% and a V OC loss of only 410 mV with hysteresis-free J–V curves.
Topics & Concepts
Perovskite (structure)Materials scienceBand gapPerovskite solar cellSolar cellPhase (matter)OptoelectronicsCrystallographyPhysicsChemistryQuantum mechanicsPerovskite Materials and ApplicationsConducting polymers and applications