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Proceedings Paper

Investigation of nanozeolite-doped holographic structures for sensing volatile organic compounds (Conference Presentation)
Author(s): Graceson Antony; Dervil Cody; Svetlana Mintova; Izabela Naydenova

Paper Abstract

Development of sensors for detection of volatile organic compounds (VOC) have a high demand in food storage applications, medical industries and in detection of leaks in industrial distribution lines. In this work, theoretical and experimental studies of a sensor based on transmission volume and surface holograms functionalized with MFI type nanozeolites studies towards different VOCs such as methanol, ethanol, toluene and acetone are presented. The gas sensing response of the different hologram configurations has been investigated using a custom-designed optical gas sensor setup suitable for different gas exposure conditions. The role of the zeolite nanoparticles has been studied by measuring the spectral response and diffraction efficiency changes under exposure to analytes with different molecular size and polarizability. This allows an optimum sensitivity, response time, selectivity, repeatability and reversibility of the sensors to be achieved.

Paper Details

Date Published: 1 April 2020
PDF
Proc. SPIE 11354, Optical Sensing and Detection VI, 1135412 (1 April 2020); doi: 10.1117/12.2554967
Show Author Affiliations
Graceson Antony, School of Physics & Clinical & Optometric Sciences, TU Dublin (Ireland)
Ctr. for Industrial and Engineering Optics, TU Dublin (Ireland)
Dervil Cody, School of Physics & Clinical & Optometric Sciences, TU Dublin (Ireland)
Ctr. for Industrial and Engineering Optics, TU Dublin (Ireland)
Svetlana Mintova, Univ. de Caen Basse-Normandie, CNRS (France)
Izabela Naydenova, School of Physics & Clinical & Optometric Sciences, TU Dublin (Ireland)
Ctr. for Industrial and Engineering Optics, TU Dublin (Ireland)


Published in SPIE Proceedings Vol. 11354:
Optical Sensing and Detection VI
Francis Berghmans; Anna G. Mignani, Editor(s)

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