Understanding the Role of the Electron‐Transport Layer in Highly Efficient Planar Perovskite Solar Cells
Citations Over TimeTop 10% of 2017 papers
Abstract
Solar cells based on perovskite absorbers are rapidly emerging as attractive candidates for photovoltaics development. Understanding the role of the electron-transport layer (ETL) is very important to obtain highly efficient perovskite solar cells. Herein, the effect of the ETL on device performance in planar perovskite solar cells is investigated in detail, and the band bending in different situations is discussed. The ET barrier is shown to be responsible for the poor fill factor (FF) of J-V curves. Introduction of a thin bathocuproine interlayer increases the interface inversion and results in an increase of FF from 56 to 76 %. Some experimental and theoretical results verify these conclusions. Furthermore, this study can provide an interface-engineering strategy to improve device performance.
Related Papers
- → Structured Perovskite Light Absorbers for Efficient and Stable Photovoltaics(2020)115 cited
- → Surface-Passivated CsPbBr3 for Developing Efficient and Stable Perovskite Photovoltaics(2021)10 cited
- → ChemInform Abstract: Recent Advances in Flexible Perovskite Solar Cells(2015)1 cited
- Organic-inorganic halide perovskite photovoltaics: from fundamentals to device architectures(2016)
- → Overview of Hybrid Perovskite Solar Cells(2021)3 cited