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Review
. 2021 Feb;33(7):e2003309.
doi: 10.1002/adma.202003309. Epub 2020 Dec 21.

Low-Dimensional Metal Halide Perovskite Photodetectors

Affiliations
Review

Low-Dimensional Metal Halide Perovskite Photodetectors

Hsin-Ping Wang et al. Adv Mater. 2021 Feb.

Abstract

Metal halide perovskites (MHPs) have been a hot research topic due to their facile synthesis, excellent optical and optoelectronic properties, and record-breaking efficiency of corresponding optoelectronic devices. Nowadays, the development of miniaturized high-performance photodetectors (PDs) has been fueling the demand for novel photoactive materials, among which low-dimensional MHPs have attracted burgeoning research interest. In this report, the synthesis, properties, photodetection performance, and stability of low-dimensional MHPs, including 0D, 1D, 2D layered and nonlayered nanostructures, as well as their heterostructures are reviewed. Recent advances in the synthesis approaches of low-dimensional MHPs are summarized and the key concepts for understanding the optical and optoelectronic properties related to the PD applications of low-dimensional MHPs are introduced. More importantly, recent progress in novel PDs based on low-dimensional MHPs is presented, and strategies for improving the performance and stability of perovskite PDs are highlighted. By discussing recent advances, strategies, and existing challenges, this progress report provides perspectives on low-dimensional MHP-based PDs in the future.

Keywords: bandgap engineering; carrier transport; low-dimensional perovskites; photodetectors; stability.

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