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Proceedings Paper

Detection of volatile organic compounds using optical fibre long period grating modified with metal organic framework thin films
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Paper Abstract

An optical fibre long period grating (LPG) modified with a thin film of ZIF-8, a zeolitic immidazol framework (ZIF) material, a subgroup of the metal organic framework (MOF) family, was employed for the detection of organic vapours. ZIF-8 film was deposited onto the surface of the LPG using an in-situ crystallization technique. The sensing mechanism is based on the measurement of the refractive index (RI) change induced by the penetration of the chemical molecules into the ZIF-8 pores. An LPG modified with 5 growth cycles of ZIF-8 responded to exposure to methanol and ethanol vapours.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96344N (28 September 2015); doi: 10.1117/12.2194110
Show Author Affiliations
Jiri Hromadka, Univ. of Nottingham (United Kingdom)
Charles Univ. in Prague (Czech Republic)
Begum Tokay, Univ. of Nottingham (United Kingdom)
Sergiy Korposh, Univ. of Nottingham (United Kingdom)
Cranfield Univ. (United Kingdom)
Stephen James, Cranfield Univ. (United Kingdom)
Ralph P. Tatam, Cranfield Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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