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Browse Journals & Magazines > Sensors Journal, IEEE ...> Volume:12 Issue:9 Help

Surface Modified {\rm CaTiO}_{3} Loaded in Polyaniline by Sodium Dodecyl Benzene Sulphonic Acid for Humidity Sensor

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3 Author(s)
Parveen, A. ; Dept. of Phys., Gov. First Grade Coll., Yadgir, India ; Koppalkar, A.R. ; Roy, A.S.

Polyaniline-CaTiO3 nanocomposites with their various weight percentages were prepared by chemical oxidative in situ polymerization technique. The prepared composites were characterized by Fourier transform infrared spectroscopy, scanning electronic microscope, and X-ray diffraction. The temperature-dependent dc conductivity of polyaniline-CaTiO3 nanocomposite was studied within the range of 40-200°C and found that 50 wt% shows high conductivity compared to other composites. Humidity sensor properties of polyaniline-CaTiO3 nanocomposite show better sensing properties and exhibit good linearity in sensing response curve, which discuss the implications of distortions and nonstoichiometry on their physical properties. Among all composites, 50 wt% of polyaniline-CaTiO3 nanocomposites show high sensitivity up to ~ 90% and their response-recovery times are 500 and 453 s, respectively.

Published in:
Sensors Journal, IEEE  (Volume:12 ,  Issue: 9 )

Date of Publication: Sept. 2012

Page(s):
2817 - 2823
ISSN :
1530-437X
INSPEC Accession Number:
12883725
Digital Object Identifier :
10.1109/JSEN.2012.2203455
Product Type:
Journals & Magazines
Date of Publication :
07 June 2012
Date of Current Version :
24 July 2012
Issue Date :
Sept. 2012
Sponsored by :
IEEE Sensors Council

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