Identification and Mitigation of Transient Phenomena That Complicate the Characterization of Halide Perovskite Photodetectors.

ABSTRACT: Halide perovskites have shown promise to advance the field of light detection in next-generation photodetectors, offering performance and functionality beyond what is currently possible with traditional inorganic semiconductors. Despite a relatively high density of defects in perovskite thin films, long carrier diffusion lengths and lifetimes suggest that many defects are benign. However, perovskite photodetectors show detection behavior that varies with time, creating inconsistent device performance and difficulties in accurate characterization. Here, we link the changing behavior to mobile defects that migrate through perovskites, leading to detector currents that drift on the time scale of seconds. These effects not only complicate reproducible device performance but also introduce char

SUBMITTER: Moseley ODI 

PROVIDER: S-EPMC10598628 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature