28 September 2015 Detection of volatile organic compounds using optical fibre long period grating modified with metal organic framework thin films
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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96344N (2015) https://doi.org/10.1117/12.2194110
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil
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.
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Jiri Hromadka, Jiri Hromadka, Begum Tokay, Begum Tokay, Sergiy Korposh, Sergiy Korposh, Stephen James, Stephen James, Ralph P. Tatam, Ralph P. Tatam, } "Detection of volatile organic compounds using optical fibre long period grating modified with metal organic framework thin films", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96344N (28 September 2015); doi: 10.1117/12.2194110; https://doi.org/10.1117/12.2194110
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