Visible-Light Self-Powered Photodetector with High Sensitivity Based on the Type-II Heterostructure of CdPSe3/MoS2
Release time:2024-06-27
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Impact Factor8.3
DOI number:10.1021/acsami.4c01183
Journal:ACS Appl. Mater. Interfaces
Abstract:Transition metal thiophosphates (MTPs) are a group of emerging van der Waals materials with widely tunable band gaps. In the MTP family, CdPSe3 is demonstrated to possess a wide energy band gap and high carrier mobility, making it a potential candidate in optoelectronic applications. Here, we reported photoelectric response behaviors of both CdPSe3- and CdPSe3/MoS2-based photodetectors (noted as CPS and CM, respectively); these showed prominent photoelectric performances, and the latter proved to be significantly superior to the former. These devices exhibited ultralow dark current at a magnitude order of 10–12 A and fine cycle and air stabilities. Compared with CPS, CM demonstrated the highest responsivity (91.12 mA/W) and detectivity (1.74 × 1011 Jones) at 5 V under 425 nm light illumination. Besides, CM showed self-powered photoelectric responses at zero bias, which was attributed to the improved separation efficiency of photogenerated carriers by the built-in electric field at the interface of the p–n junction. This work proves a prospect for the CM device in portable, self-powered optoelectronic device applications.
Indexed by:Journal paper
Document Type:J
Volume:16
Issue:25
Page Number:32334–32343
Translation or Not:no
Date of Publication:2024-06-11
Included Journals:SCI
Links to published journals:https://pubs.acs.org/doi/full/10.1021/acsami.4c01183
First Author:Juanjuan Yang
First Author:Jiaming Song
All the Authors:Xin Zhao
All the Authors:Linghao Zong
All the Authors:Shuxian Wang
All the Authors:Bingda Li
All the Authors:Yuting Li
All the Authors:Guoshuai Ban
All the Authors:Zhuo Wang
All the Authors:Zijuan Ma
All the Authors:Peng Hu
All the Authors:Feng Teng