Carrier dynamic identification enables wavelength and intensity sensitivity in perovskite photodetectors.

ABSTRACT: Deciphering the composite information within a light field through a single photodetector, without optical and mechanical structures, is challenging. The difficulty lies in extracting multi-dimensional optical information from a single dimension of photocurrent. Emerging photodetectors based on information reconstruction have potential, yet they only extract information contained in the photoresponse current amplitude (responsivity matrix), neglecting the hidden information in response edges driven by carrier dynamics. Herein, by adjusting the thickness of the absorption layer and the interface electric field strength in the perovskite photodiode, we extend the transport and relaxation time of carriers excited by photons of different wavelengths, maximizing the spectrum richness of the edg

SUBMITTER: Min L 

PROVIDER: S-EPMC11439907 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature