alexa Nanostructured Ferrites As Room Temperature Humidity Sensor
ISSN: 2169-0022

Journal of Material Sciences & Engineering
Open Access

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3rd International Conference and Exhibition on Materials Science & Engineering
October 06-08, 2014 Hilton San Antonio Airport, USA

Richa Srivastava and B C Yadav
Accepted Abstracts: Material Sci Eng
DOI: 10.4172/2169-0022.S1.017
Abstract
Present paper deals synthesis and characterization of nanostructure Ferrite materials like Fe2O3, NiFe2O4 CuFe2O4 and ZnFe2O4. The sensing materials were characterized by SEM, XRD and UV-Visible spectroscopy. The powders synthesized materials were compacted in to pellets using hydraulic press. Thick and thin films of samples were prepared by screen printing and sol-gel spin coating techniques on saperate alumina substrates respectively. After it their humidity sensing properties were investigated. The variations of resistance with %RH of the sensing elements were measured. Out of all investigated material, the thin film of ZnFe2O4 gave maximum average sensitivity 47.5 MΩ/%RH with ?2% hysteresis. Best sensitivity, less hysteresis and good reproducibility identifies that fabricated humidity sensor (ZnFe2O4) is promising and challenging.
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