Eye readable metal hydride based hydrogen tape sensor for health applications

Title

Author

Ngene, P.
Radeva, T.
Westerwaal, R.
Schreuders, H.
Dam, B.

Faculty

Applied Sciences

Department

Chemical Engineering

Abstract

Using the change in the intrinsic optical properties of YMg-based thin films upon exposure to hydrogen, we observe the presence of hydrogen at concentrations as low as 20 ppm just by a change in color. The eye-visible color change circumvents the use of any electronics in this device, thereby making it an inexpensive H2 detector. The detector shows high selectivity towards H2 in H2-O2 - mixtures, and responds within 20 s to 0.25% H2 in the presence of 18% O2.

Subject

tape sensor
Eye readable sensor
hydrogen sensor
breath analysis
lactose intolerance
yttriumhydride
thin film

To reference this document use:

http://resolver.tudelft.nl/uuid:e6e2de79-b998-4237-9dfd-feec0732e8e8

DOI

https://doi.org/10.1117/12.2059835

Publisher

SPIE

ISSN

0277-786X

Source

Proceedings of SPIE 9202 : Photonics Applications for Aviation, Aerospace, Commercial and Harsh Environments V, San Diego (USA), August 17th, 2014