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.
Recommended Citation
Y. Wang et al., "Hydrogen Gas Sensor Based On Seven-core Fiber Interference And Pt-WO3 Film," Materials Letters, vol. 341, article no. 134245, Elsevier, Jun 2023.
The definitive version is available at https://doi.org/10.1016/j.matlet.2023.134245
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Ellipsoidal balls; Fiber optic sensor; Pt-WO thin film 3; Spiral micro-grooves
International Standard Serial Number (ISSN)
1873-4979; 0167-577X
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2023 Elsevier, All rights reserved.
Publication Date
15 Jun 2023
Comments
National Natural Science Foundation of China, Grant 51975442