Fabrication of electro-chemical humidity sensor based on zinc oxide/polyaniline nanocomposite
2012 (English)In: Advanced Materials Letters, ISSN 0976-3961, Vol. 3, no 5, 421-425 p.Article in journal (Refereed) Published
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.
ZnO/PANi nanocomposite; electrical properties; conduction mechanism; humidity sensing.
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-85581DOI: 10.5185/amlett.2012.5349OAI: oai:DiVA.org:liu-85581DiVA: diva2:571854