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Fabrication of electro-chemical humidity sensor based on zinc oxide/polyaniline nanocomposite
Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi 10075, India.
Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi 10075, India.
Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi 10075, India.
(Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi 10075, India)
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2012 (English)In: Advanced Materials Letters, ISSN 0976-3961, Vol. 3, no 5, 421-425 p.Article in journal (Refereed) Published
Abstract [en]

The present work reports the synthesis of nano size zinc oxide encapsulated polyanaline by wet-chemical method at ambient condition. The prepared composite was characterized by XRD, SEM, TGA and UV-Vis spectroscopy. The results revealed the formation of the crystalline homogenous ZnO centered composite with electrical conductance in the range of 10-2scm-1 andthermal stability up to 280 0C. Further, electrical resistance of a ZnO/PANi film of ~200 nm thickness was monitored against humidity to use as humidity sensitive element. The observed sensing parameters were response time, 32 sec; and recovery time,45 sec; sensor has exhibited better sensing characteristics than pure PANi and other reported humidity sensors.

Place, publisher, year, edition, pages
Vinova Bhave Research Institute , 2012. Vol. 3, no 5, 421-425 p.
Keyword [en]
ZnO/PANi nanocomposite; electrical properties; conduction mechanism; humidity sensing.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-85581DOI: 10.5185/amlett.2012.5349OAI: oai:DiVA.org:liu-85581DiVA: diva2:571854
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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