Pyro-Phototronic Effect Induced Circularly Polarized Light Detection with a Broadband Response.

ABSTRACT: Photopyroelectric-based circularly polarized light (CPL) detection, coupling the pyro-phototronic effect and chiroptical phenomena, has provided a promising platform for high-performance CPL detectors. However, as a novel detection strategy, photopyroelectric-based CPL detection is currently restricted by the short-wave optical response, underscoring the urgent need to extend its response range. Herein, visible-to-near-infrared CPL detection induced by the pyro-phototronic effect is first realized in chiral-polar perovskites. Specifically, chiral-polar multilayered perovskites (S-BPEA)₂FAPb₂I₇ (1-S, S-BPEA = (S)-1-4-Bromophenylethylammonium, FA = formamidinium) with spontaneous polarization shows intrinsic pyroelectric and photopyroelectric performance. Str

SUBMITTER: Guan Q 

PROVIDER: S-EPMC11423216 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature