Selective Enhancement of Photoresponse with Ferroelectric-Controlled BP/In₂ Se₃ vdW Heterojunction.

ABSTRACT: Owing to the large built-in field for efficient charge separation, heterostructures facilitate the simultaneous realization of a low dark current and high photocurrent. The lack of an efficient approach to engineer the depletion region formed across the interfaces of heterojunctions owing to doping differences hinders the realization of high-performance van der Waals (vdW) photodetectors. This study proposes a ferroelectric-controlling van der Waals photodetector with vertically stacked two-dimensional (2D) black phosphorus (BP)/indium selenide (In₂ Se₃ ) to realize high-sensitivity photodetection. The depletion region can be reconstructed by tuning the polarization states generated from the ferroelectric In₂ Se₃ layers. Further, the energy bands

SUBMITTER: Wang J 

PROVIDER: S-EPMC10104633 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature