Efficient Two-Dimensional Perovskite Solar Cells Realized by Incorporation of Ti₃C₂T_x MXene as Nano-Dopants.

ABSTRACT: Two-dimensional (2D) perovskites solar cells (PSCs) have attracted considerable attention owing to their excellent stability against humidity; however, some imperfectness of 2D perovskites, such as poor crystallinity, disordered orientation, and inferior charge transport still limit the power conversion efficiency (PCE) of 2D PSCs. In this work, 2D Ti₃C₂T_x MXene nanosheets with high electrical conductivity and mobility were employed as a nanosized additive to prepare 2D Ruddlesden-Popper perovskite films. The PCE of solar cells was increased from 13.69 (without additive) to 15.71% after incorporating the Ti₃C₂T_x nanosheets with an optimized concentration. This improved performance is attributed to the enhanced crystallinity,

SUBMITTER: Jin X 

PROVIDER: S-EPMC8187554 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature