Optimizing the Performance of CsPbI₃-Based Perovskite Solar Cells via Doping a ZnO Electron Transport Layer Coupled with Interface Engineering.

ABSTRACT: Interface engineering has been regarded as an effective and noninvasive means to optimize the performance of perovskite solar cells (PSCs). Here, doping engineering of a ZnO electron transport layer (ETL) and CsPbI₃/ZnO interface engineering via introduction of an interfacial layer are employed to improve the performances of CsPbI₃-based PSCs. The results show that when introducing a TiO₂ buffer layer while increasing the ZnO layer doping concentration, the open-circuit voltage, power conversion efficiency, and fill factor of the CsPbI₃-based PSCs can be improved to 1.31 V, 21.06%, and 74.07%, respectively, which are superior to those of PSCs only modified by the TiO₂ buffer layer or high-concentration doping of ZnO layer. On the one h

SUBMITTER: Yue M 

PROVIDER: S-EPMC7770773 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature