Published Paper Details:

The undoped gas sensors are not able to sense for a particular gas in this condition to improve the sensitivity and selectivity of sensor is most important task. The sensitivity and selectivity of sensor can be improved by dopants or additives which can change the gas sensing characteristics. A suitable catalyst or dopant is often added in small percentage in the pure material to enhance the sensitivity and selectivity. Nanocomposite term contain mixture of two or more nano oxide materials like binary oxide, ternary oxide, etc. Nanocomposite films consists of nanocrystalline or amorphous phase of a least two different materials In2O3:MoO3 binary oxide thin films were prepared by using spray pyrolysis technique on glass substrate at 4000C temperature. In2O3 as dopant and MoO3 as a functional material in film. The precursor InCl3 and MoCl5 of concentrations 0.3N:0.3N. The changes in parameters like sensitivity, selectivity, response time, grain size, surface area, and stability of the gas sensors which were improved by addition of different dopants, and the results of the analysis are presented in the paper.