Aris, Aisyah Mohamad and Rahman, Husna Abdul and Irawati, Ninik and Harun, Sulaiman Wadi and Lim, Kok Sing and Ahad, Irma Zulaykha Mohamad (2017) Enhanced Relative Humidity Sensing Based on a Tapered Fiber Bragg Grating with Zinc Oxide Nanostructure-Embedded Coatings. Advanced Science Letters, 23 (6). pp. 5452-5456. ISSN 1936-6612, DOI https://doi.org/10.1166/asl.2017.7398.
Full text not available from this repository.Abstract
A novel concept for an intrinsic relative humidity (RH) sensor that uses a tapered fiber Bragg grating (FBG) with zinc oxide nanostructure-embedded coatings is presented. Tests in a controlled environment indicate that the sensor has a linear and stable response behavior at 55% to 80% RH. The tapered FBG is fabricated using a chemical etching method followed by the coating of zinc oxide (ZnO) nanostructures onto the surface of the taper. Experimental results show that the ZnO coated FBG produced a better sensitivity of 2.51 pm/% in comparison to only 1.36 pm/% for the uncoated FBG in terms of its Bragg wavelength shift. The performance of the humidity sensor in regards to the reflected output power is also presented, showing a significant improvement in sensitivity from 0.0012 dBm/% for bare tapered fiber to 0.089 dBm/% with the ZnO coating. These results indicate the potential of ZnO nanostructures coating in enhancing the performance of the sensor for relative humidity sensing.
| Item Type: | Article |
|---|---|
| Funders: | Universiti Teknologi MARA Internal Research Grant ARAS (Grant No. 600-RMI/DANA 5/3/ARAS (2/2015)) and LESTARI (Grant No. 600-RMI/DANA 5/3/LESTARI (27/2015) |
| Uncontrolled Keywords: | Fiber bragg grating (FBG); Humidity sensor; Tapered FBG; Zinc oxide; ZnO nanostructures |
| Subjects: | Q Science > QD Chemistry T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering Faculty of Science > Department of Chemistry |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 27 Dec 2018 03:04 |
| Last Modified: | 27 Dec 2018 03:04 |
| URI: | http://eprints.um.edu.my/id/eprint/19822 |
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