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Vol. 101, Issue 2, February 2009, pp.82-89

 

 

Bullet

 

Metal Oxides Doped PPY-PVA Blend Thin Films Based Gas Sensor

 

*D. B. DUPARE, 1M. D. SHIRSAT and *A. S. ASWAR

*Department of Chemistry S.G.B. Amravati University Amravati. 444602 (M.S.) India

1Optoelectronics and Sensors Research laboratory, Department of Physics

Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, 431004 (M.S.) India

*E-mail: dharamdupare@yahoo.co.in, aswaranand@g-mail.com

 

 

Received: 30 December 2008   /Accepted: 20 February 2009   /Published: 28 February 2009

 

Abstract: Synthesis of metal oxides doped polypyrrole–polyvinyl alcohol blend thin films by in situ chemical oxidative polymerization, using microwave oven on glass substrate for development of Ammonia and Trimethyl ammine hazardous gas sensor. The all experimental process carried out at room temperature(304 K). These polymer materials were characterized by Chemical analyses, spectral studies (UV-visible and IR) and conductivity measurement by four –probe technique. The surface morphology as observed in the SEM image was observed to be uniformly covering the entire substrate surface. The sensor was used for different concentration (ppm) of TMA and Ammonia gas investigation at room temperature (304 k). This study found to possess improved electrical, mechanical and environmental stability metal oxides doped PPY-PVA films.

 

Keywords: Polymer blend, Thin film, Ammonia, TMA-Gas sensor, Polypyrrole, Metal oxides polyvinyl alcohol

 

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