ReS2/MoSe2 Van der Waals Heterostructure Photodetectors for Polarization Imaging and Polarization‐Encoded Optical Communication
Year: 2025
Type: article
Abstract: Two dimensional (2D) materials with anisotropic optoelectronic properties provide a feasible solution for polarization photodetectors, however, it is challenging to achieve simultaneous high responsivity, fast photoresponse, and good anisotropic ratio of the photocurrent (Iph‐max/Iph‐min). In this work, a polarization‐sensitive photodetector based on ReS2/MoSe2 van der Waals heterostructures is constructed for type‐II energy band alignment with a clean contact interface. Under 532 nm laser irradiation, the photodetector has both high responsivity (89.4 A W−1), high‐speed response (≈30.5 µs/≈36.2 µs), and high anisotropy ratio of 3.23. The performance of the device has been enhanced for multifunctional applications, including single‐pixel polarization imaging and encrypted optical communication by combining Morse code with polarization encoding, demonstrating its potential in polarization‐related optical information applications.
Source: Small
Authors: Yufan Wang, Zijie Lai, Senyao Tang, Jiaxuan Wang, Qiyuan Zhou, Shuhan Li, Weiqi Wang, Huijuan Zhao, Yuanfang Yu, Li Gao
Institution: Nanjing University of Posts and Telecommunications
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
Funders: National Natural Science Foundation of China, Government of Jiangsu Province, Natural Science Foundation of Jiangsu Province, Nanjing University of Posts and Telecommunications, Nanjing University, Basic Research Program of Jiangsu Province, National Key Research and Development Program of China
OpenAlex ID: W4412035835