A finely regulated quantum well structure in quasi-2D Ruddlesden–Popper perovskite solar cells with efficiency exceeding 20%
Jianghu Liang, Zhanfei Zhang, Qi Xue, Yiting Zheng, Xueyun Wu, Ying Huang, Xin Wang, Chaochao Qin, Zhenhua Chen, Chun‐Chao Chen
Abstract
A record power conversion efficiency of 20.1% is achieved for quasi-2D Ruddlesden–Popper perovskite solar cells. The quantum wells are reversely graded in the film, and the quantum confinement effect inside the film is significantly weakened.
Topics & Concepts
Perovskite (structure)Energy conversion efficiencyMaterials scienceQuantum efficiencyQuantumCondensed matter physicsOptoelectronicsPhysicsChemistryCrystallographyQuantum mechanicsPerovskite Materials and ApplicationsOrganic Light-Emitting Diodes ResearchOrganic Electronics and Photovoltaics