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Fabrication of ultra-sensitive optical fiber based humidity sensor using TiO2 thin film
Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi 110075, India.
Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi 110075, India.
Swami Shradhanand College, University of Delhi, Delhi 110036, India.
Department of Science and Technology, Technology Bhavan, Delhi 110061, India.
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2012 (English)In: Advanced Materials Letters, ISSN 0976-3961, Vol. 3, no 5, 365-370 p.Article in journal (Refereed) Published
Abstract [en]

Thin films of titanium dioxide in anatase form have been prepared using isobutyl titanate as precursor. The resulting TiO2 was coated on an U-shaped pyrex glass rod to sense the humidity of a controlled humid environment using optical fiber approach. The humidity sensing characteristics and the sensing mechanism have been investigated by measuring the output power of the sensor at different humidity. The developed humidity sensor was responded in the humidity ranging from 10 to 95% of relative humidity and exhibited the sensitivity of 0.78, response time 36s and recovery time 73s.

Place, publisher, year, edition, pages
VBRI Press , 2012. Vol. 3, no 5, 365-370 p.
Keyword [en]
Humidity sensor; titanium oxide; sensing mechanism; optical fiber
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-85580DOI: 10.5185/amlett.2012.5350OAI: oai:DiVA.org:liu-85580DiVA: diva2:571853
Available from: 2012-11-28 Created: 2012-11-25 Last updated: 2012-12-04Bibliographically approved

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Tiwari, Ashutosh

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