Siddiq, Nur Abdillah and Chong, Wu Yi and Pramono, Yono Hadi and Muntini, Melania Suweni and Asnawi, Asnawi and Ahmad, Harith (2020) All-Optical Humidity Sensor Using SnO2 Nanoparticle Drop Coated on Straight Channel Optical Waveguide. Photonic Sensors, 10 (2). pp. 123-133. ISSN 1674-9251, DOI https://doi.org/10.1007/s13320-019-0563-8.
Full text not available from this repository.Abstract
The straight channel optical waveguide coated with the SnO2 nanoparticle is studied as an all-optical humidity sensor. The proposed sensor shows that the transmission loss of the waveguide increases with increasing relative humidity (RH) from 56% to 90% with very good repeatability. The sensitivity to changes in relative humidity is ∼2 dB/% RH. The response time of the humidity sensor is 2.5 s, and the recovery time is 3.5 s. The response to humidity can be divided into 3 different regions, which are correlated to the degree of water adsorption in the SnO2 nanoparticle layer. Compared with the previous all-optical humidity sensor based on SnO2, the proposed sensor exhibits more rapid response, simpler fabrication process, and higher sensitivity. The proposed sensor has a potential application in the long distance, remote agriculture, and biological humidity sensing. © 2019, The Author(s).
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Humidity measurement; optical sensors; SnO2 nanoparticle |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 23 Jun 2020 07:08 |
| Last Modified: | 23 Jun 2020 07:08 |
| URI: | http://eprints.um.edu.my/id/eprint/24946 |
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