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- Title
Defect Engineering in Transition Metal Dichalcogenide-Based Gas Sensors.
- Authors
Fu, Xiaqing; Qiao, Zirui; Zhou, Hangyu; Xie, Dan
- Abstract
Since the discovery of innovative two-dimensional (2D) materials, significant efforts have been dedicated to exploring their intriguing properties and emerging applications. Among all candidates, transition metal dichalcogenides (TMDs) have proven to be exceptional for gas sensing, while defects engineering has been introduced to modify the pristine TMDs for better gas sensing performances. In this review, we systematically summarize types of defects, advanced characterization techniques, and state-of-the-art controllable synthetic methods. Various types of defects in TMDs can induce diverse changes in chemical and electron structures, which are closely correlated with gas sensing ability. Therefore, connections between defects and gas sensing mechanisms and performances have been addressed based on both defect categories and electron affinity of gases. This review will be a guide for researchers in defective materials and open up the field of precisely synthesis chemistry and deepen the understanding of the underlying effects of defects in other 2D materials.
- Subjects
GAS detectors; ELECTRON affinity; ELECTRON gas; RESEARCH personnel; ENGINEERING
- Publication
Chemosensors, 2024, Vol 12, Issue 6, p85
- ISSN
2227-9040
- Publication type
Article
- DOI
10.3390/chemosensors12060085