Development of NO2 Gas Sensor Based on Plasma Polymerized Nanostructure Polyaniline Thin Film

Abstract

The nanostructured polyaniline (PANI) thin film has been prepared by using pulsed plasma polymerization technique. The effects of substrate position, pressure and number of plasma pulses on the film growth rate were monitored and established an ideal condition. The characterization of prepared PANI thin film was performed with the ultraviolet-visible spectroscopy (UV-Vis), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM) studies. The surface of the thin film possessed three dimensional networks of the PANI belts as cauliflower like morphology with a diameter of 35-97 nm. The NO2 gas sensing behavior was studied by measuring change in electrical conductivity with respect to concentration and time. All the findings have been discussed and results would be appreciably devoted in the area of sensor technology.

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R. Kumar, S. Singh and A. Misra, "Development of NO2 Gas Sensor Based on Plasma Polymerized Nanostructure Polyaniline Thin Film," Journal of Minerals and Materials Characterization and Engineering, Vol. 9 No. 11, 2010, pp. 997-1006. doi: 10.4236/jmmce.2010.911072.

Conflicts of Interest

The authors declare no conflicts of interest.

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