Van der Waals Heterostructures With Built-In Mie Resonances For Polarization-Sensitive Photodetection.

ABSTRACT: Few-layer transition metal dichalcogenides (TMDs) and their combination as van der Waals heterostructures provide a promising platform for high-performance optoelectronic devices. However, the ultrathin thickness of TMD flakes limits efficient light trapping and absorption, which triggers the hybrid construction with optical resonant cavities for enhanced light absorption. The optical structure enriched photodetectors can also be wavelength- and polarization-sensitive but require complicated fabrication. Herein, a new-type TMD-based photodetector embedded with nanoslits is proposed to enhance light trapping. Taking ReS₂ as an example, strong anisotropic Mie-type optical responses arising from the intrinsic in-plane anisotropy and nanoslit-enhanced anisotropy are discovered. Owin

SUBMITTER: Yan J 

PROVIDER: S-EPMC10037953 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature