Nanocrystalline titanium dioxide coated optical fiber sensor for ammonia vapour detection

B. Renganathan; D. Sastikumar; G. Gobi; R. Srinivasan; N. Rajeshwari Yogamalar; A. Chandra Bose

doi:10.1117/12.860712

27 August 2010 Nanocrystalline Titanium dioxide coated optical fiber sensor for ammonia vapour detection

B. Renganathan, D. Sastikumar, G. Gobi, R. Srinivasan, N. Rajeshwari Yogamalar, A. Chandra Bose

Proceedings Volume 7764, Nanoengineering: Fabrication, Properties, Optics, and Devices VII; 77640U (2010) https://doi.org/10.1117/12.860712
Event: SPIE NanoScience + Engineering, 2010, San Diego, California, United States

Abstract

Fiber optic sensor is proposed based on cladding modification method for detecting ammonia emissions. Nanocrystalline titanium dioxide is used as a sensing material and spectral characteristics of the sensor are studied for different concentrations (50-500 ppm) of ammonia, methanol and ethanol. The sensor shows a linear variation in the output light intensity with the concentration. The light intensity increases for ammonia whereas it decreases for methanol and ethanol. Gas selectivity of the sensor is discussed.

Citation Download Citation

B. Renganathan, D. Sastikumar, G. Gobi, R. Srinivasan, N. Rajeshwari Yogamalar, and A. Chandra Bose "Nanocrystalline Titanium dioxide coated optical fiber sensor for ammonia vapour detection", Proc. SPIE 7764, Nanoengineering: Fabrication, Properties, Optics, and Devices VII, 77640U (27 August 2010); https://doi.org/10.1117/12.860712

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