Article
Hydrogen Gas Sensor Based On Seven-core Fiber Interference And Pt-WO3 Film
Materials Letters
Abstract
Tungsten oxide (WO3) typically owns the characteristics of electrochemical, photo-chromic, and gas-chromic. The seven-core fiber (SCF) generates a strong interference signal that comprises super-modes. The thermo-optic and thermo-expansion characteristics of SCF were utilized with an aid of Pt-WO3 film that makes the sensor highly sensitive to the H2 gas environment. The sensor with spiral micro grooves by femtosecond-laser ablation considerably enhanced the H2 sensitivity from 3.28 nm% to 4.0 nm%, and obtained a response and recovery time < 90 s.
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
- Ellipsoidal balls,
- Fiber optic sensor,
- Pt-WO thin film 3,
- Spiral micro-grooves
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2023 Elsevier, All rights reserved.
Publication Date
6-15-2023
Publication Date
15 Jun 2023
Disciplines
Citation Information
You Wang, Farhan Mumtaz and Yutang Dai. "Hydrogen Gas Sensor Based On Seven-core Fiber Interference And Pt-WO3 Film" Materials Letters Vol. 341 (2023) ISSN: 1873-4979; 0167-577X Available at: http://works.bepress.com/farhan-mumtac/15/
National Natural Science Foundation of China, Grant 51975442