Research status of gas sensing performance of MoTe2-based gas sensors: A mini review

Jingyu Wang; Wen Zeng; Qu Zhou

doi:10.3389/fchem.2022.950974

Research status of gas sensing performance of MoTe₂-based gas sensors: A mini review

Front Chem. 2022 Jul 22:10:950974. doi: 10.3389/fchem.2022.950974. eCollection 2022.

Authors

Jingyu Wang¹, Wen Zeng¹, Qu Zhou²

Affiliations

¹ College of Materials Science and Engineering, Chongqing University, Chongqing, China.
² College of Engineering and Technology, Southwest University, Chongqing, China.

Abstract

Transition metal dichalcogenides (TMDs) have been widely explored for their excellent gas sensing properties, especially high sensitivity and stability at room temperature. MoTe₂ exhibits good sensitivity and selectivity to some nitrogen-containing gases (i.e., NO₂, NH₃) and has received extensive attention in gas sensing. In addition, increasingly complex production environments place demands on high-quality gas sensors. Therefore, worldwide efforts are devoted to designing and manufacturing MoTe₂-based gas sensors with faster response and recovery speed. This paper summarizes the research progress of MoTe₂-based gas sensing, focuses on the practical measures to improve the response and recovery speed of MoTe₂-based sensors, and discusses the mechanism. This provides guidance for exploring higher performance MoTe₂ sensors.

Keywords: MoTe2; UV activation; additive doping; gas sensing; transition metal dichalcogenide.

Publication types

Review