Spectrometer-Less Remote Sensing Image Classification Based on Gate-Tunable van der Waals Heterostructures.

ABSTRACT: Remote sensing technology, which conventionally employs spectrometers to capture hyperspectral images, allowing for the classification and unmixing based on the reflectance spectrum, has been extensively applied in diverse fields, including environmental monitoring, land resource management, and agriculture. However, miniaturization of remote sensing systems remains a challenge due to the complicated and dispersive optical components of spectrometers. Here, m-phase GaTe_0.5Se_0.5 with wide-spectral photoresponses (250-1064 nm) and stack it with WSe₂ are utilizes to construct a two-dimensional van der Waals heterojunction (2D-vdWH), enabling the design of a gate-tunable wide-spectral photodetector. By utilizing the multi-photoresponses under varying gate volta

SUBMITTER: Yu Y 

PROVIDER: S-EPMC11200008 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature