Light-Assisted Enhancement of Gas Sensing Property for Micro-Nanostructure Electronic Device: A Mini Review

Frontiers in Chemistry

Lingxiao Gao²  Ziying Wang²  Zongtao Ma³ 

[1] National Engineering Research Center for Technological Innovation Method and Tool, School of Mechanical Engineering, Hebei University of Technology, Tianjin, China;School of Electronics and Information Engineering, Hebei University of Technology, Tianjin, China;State Key Laboratory of Reliability and Intelligence Electrical Equipment, Hebei University of Technology, Tianjin, China;

关键词: light irradiation;    micro-nanostructure;    gas sensing devices;    sensor;    metal oxide semiconductor;   

DOI  :  10.3389/fchem.2021.811074

来源: DOAJ

【 摘 要 】

In recent years, gas sensing electronic devices have always attracted wide attention in the field of environment, industry, aviation and others. In order to improve the gas sensing properties, many micro- and nano-fabrication technologies have been proposed and investigated to develop high-performance gas sensing devices. It is worth noting that light irradiation is an effective strategy to enhance gas sensitivity, shorten the response and recovery time, reduce operating temperature. In this review, firstly, the latest research advances of gas sensors based on different micro-nanostructure materials under UV light and visible light activation is introduced. Then, the gas sensing mechanism of light-assisted gas sensor is discussed in detail. Finally, this review describes the present application of gas sensors with improved properties under light activation assisted conditions and the perspective of their applications.

【 授权许可】

Unknown