PbI₂ -DMSO Assisted In Situ Growth of Perovskite Wafers for Sensitive Direct X-Ray Detection.

ABSTRACT: Although perovskite wafers with a scalable size and thickness are suitable for direct X-ray detection, polycrystalline perovskite wafers have drawbacks such as the high defect density, defective grain boundaries, and low crystallinity. Herein, PbI₂ -DMSO powders are introduced into the MAPbI₃ wafer to facilitate crystal growth. The PbI₂ powders absorb a certain amount of DMSO to form the PbI₂ -DMSO powders and PbI₂ -DMSO is converted back into PbI₂ under heating while releasing DMSO vapor. During isostatic pressing of the MAPbI₃ wafer with the PbI₂ -DMSO solid additive, the released DMSO vapor facilitates in situ growth in the MAPbI₃ wafer with enhanced crystallinity and reduced defect densit

SUBMITTER: Liu W 

PROVIDER: S-EPMC9811467 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature