The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.
UV-Activated MoS2 Based Fast and Reversible NO2 Sensor at Room Temperature
Abstract
Two-dimensional materials have gained considerable attention in chemical sensing owing to their naturally high surface-to-volume ratio. However, the poor response time and incomplete recovery at room temperature restrict their application in high-performance practical gas sensors. Herein, we demonstrate ultrafast detection and reversible MoS 2 gas sensor at room temperature. The sensor’s performance is investigated to NO 2 at room temperature, under thermal and photo energy. Incomplete recovery and high response time of ∼249 s of sensor are observed at room temperature. Thermal energy is enough to complete recovery, but it is at the expense of sensitivity. Further, under photo excitation, MoS 2 exhibits an enhancement in sensitivity with ultrafast response time of ∼29 s and excellent recovery to NO 2 (100 ppm) at room temperature. This significant improvement in sensitivity (∼30%) and response time (∼88%) is attributed to the charge perturbation on the surface of the sensing layer in the context of NO 2 /MoS 2 interaction under optical illumination. Moreover, the sensor shows reliable selectivity toward NO 2 against various other gases. These unprecedented results reveal the potential of 2D MoS 2 to develop a low power portable gas sensor.
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Cites
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Cited by
Recent Advances in Emerging 2D Material‐Based Gas Sensors: Potential in Disease Diagnosis
Zhang, L., Khan, K., Zou, J., Zhang, H., & Li, Y. (2019) · Advanced Materials Interfaces · doi:10.1002/admi.201901329 · Cited by 281
Functionalized Hydrogel-Based Wearable Gas and Humidity Sensors.
Luo, Y., Li, J., Ding, Q., Wang, H., Liu, C., & Wu, J. (2023) · Nano-Micro Letters · doi:10.1007/s40820-023-01109-2 · Cited by 236
Bai, X., Lv, H., Liu, Z., Chen, J., Wang, J., Sun, B., Zhang, Y., Wang, R., & Shi, K. (2021) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2021.125830 · Cited by 213
Ding, Q., Zhou, Z., Wang, H., Wu, Z., Tao, K., Yang, B., Xie, X., Fu, J., & Wu, J. (2023) · SmartMat · doi:10.1002/smm2.1141 · Cited by 72
Metadata
- Authors
- Kumar, R., Goel, N., & Kumar, M.
- Venue
- ACS Sensors
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-11-08
- Volume
- 2
- Issue
- 11
- Pages
- 1744-1752
- ISSN
- 2379-3694 (ISSN-L)
- OpenAlex
- W2765441459
- Cited by
- 490
- References
- 42
- FWCI
- 14.66
- Type
- journal article
- Language
- en
- Open access
- closed
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