Self-powered, ultrasensitive, room temperature humidity sensors using SnS2 nanofilms

Humidity monitoring has become extremely vital in various technological fields such as environment control, biomedical engineering, and so on. Therefore, a substantial interest lies in the development of fast and highly sensitive devices with high figures of merit. Self-powered and ultrasensitive hu...

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Bibliographic Details
Published in:Scientific reports 2020-09, Vol.10 (1), p.14611-14611, Article 14611
Main Authors: Rambabu, A., Singh, Deependra Kumar, Pant, Rohit, Nanda, K. K., Krupanidhi, S. B.
Format: Article
Language:English
Subjects:
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639/301/1005
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Adipocytes
Adipogenesis
Cell proliferation
Enzyme-linked immunosorbent assay
Glucocorticoids
Humanities and Social Sciences
Methylation
multidisciplinary
Myostatin
Pork
Relative humidity
Science
Science (multidisciplinary)
Sensors
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Summary:Humidity monitoring has become extremely vital in various technological fields such as environment control, biomedical engineering, and so on. Therefore, a substantial interest lies in the development of fast and highly sensitive devices with high figures of merit. Self-powered and ultrasensitive humidity sensors based on SnS 2 nanofilms of different film thicknesses have been demonstrated in this work. The sensing behavior has been investigated in the relative humidity (RH) range of 2–99%. The observed results reveal a remarkable response and ultrafast detection even with zero applied bias (self-powered mode), with response and recovery times of ~ 10 and ~ 0.7 s, respectively. The self-powered behavior has been attributed to the inhomogeneities and the asymmetry in the contact electrodes. The highest sensitivity of ~ 5.64 × 10 6 % can be achieved at an applied bias of 5 V. This approach of fabricating such highly responsive, self-powered and ultrafast sensors with simple device architectures will be useful for designing futuristic sensing devices.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-020-71615-5