Charge-transfer-based Gas Sensing Using Atomic-layer MoS2
Korea Institute of Materials Science · Gwangju Institute of Science and Technology · +3 more institutions
Abstract
Two-dimensional (2D) molybdenum disulphide (MoS2) atomic layers have a strong potential to be used as 2D electronic sensor components. However, intrinsic synthesis challenges have made this task difficult. In addition, the detection mechanisms for gas molecules are not fully understood. Here, we report a high-performance gas sensor constructed using atomic-layered MoS2 synthesised by chemical vapour deposition (CVD). A highly sensitive and selective gas sensor based on the CVD-synthesised MoS2 was developed. In situ photoluminescence characterisation revealed the charge transfer mechanism between the gas molecules and MoS2, which was validated by theoretical calculations. First-principles density functional…
Citation impact
- FWCI
- 25.83
- Percentile
- 100%
- References
- 39
Authors
19Topics & keywords
- Adsorption
- Molecule
- Chemical physics
- Molybdenum
- Density functional theory
- Materials science
- Atomic layer deposition
- Chemical vapor deposition