Document Type

Article

Disciplines

2.2 ELECTRICAL, ELECTRONIC, INFORMATION ENGINEERING

Publication Details

https://www.x-mol.net/paper/article/1677477520057548800

Article number134268, Number of pages 8, Journal Sensors and Actuators B: Chemical, Volume393.

DOI:10.1016/j.snb.2023.134268

Abstract

A novel high stability hydrogen sensor based on a Pt/WO3 coated single-mode tapered-no-core single-mode (STNCS) fiber interferometer is proposed and experimentally studied. The STNCS structure is treated by (3-Aminopropyl) triethoxysilane (APTES) and then coated with Pt/WO3 nanorods. Compared to the traditional method of using poly (dimethylsiloxane) (PDMS) to adhere Pt/WO3 nanorods on the fiber surface, the APTES modified fiber forms strong covalent bonds with Pt/WO3 with stronger adhesion to the fiber surface, resulting in improved long-term stability. Experimental results show that the sensitivity of the sensor varies from -31.05 nm/% to -4.30 nm/% as the hydrogen concentration increases from 0 to 1.04%. The sensor also demonstrates good reproducibility, longer term stability and repeatability.

DOI

https://doi.org/DOI:10.1016/j.snb.2023.134268

Funder

This work was supported by the National Natural Science Foundation of China (NSFC) (62175097, 62065013 and 62163029); Natural Science Foundation of Jiangxi Province (20192ACB20031 and 20212BAB202024); Royal Society International Exchanges 2020 Cost Share (NSFC) (IEC\NSFC\201015) and National Natural Science Foundation of China-Royal Society Exchange Programme (62111530153).

Creative Commons License

Creative Commons Attribution-Share Alike 4.0 International License
This work is licensed under a Creative Commons Attribution-Share Alike 4.0 International License.

Download


Share

COinS