Nag, Pratanu and Sujatha Devi, P (2015) SnO2 Based Ceramics for Hydrogen Sensors: Current Status and Perspectives. Transactions of the Indian Ceramic Society, 74 (3). pp. 129-147. ISSN 0371-750X

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Abstract

Significant developments have been made in the area of metal oxide semiconducting ceramic gas sensors since its invention. Currently, these sensors are extensively used for domestic, industrial and environmental applications. These are the simple type of gas sensors possessing superiority due to compact size, simple fabrication technique, durability, low cost, minimal power consumption and simple electronic circuits. Tin dioxide (SnO2) has been widely investigated as the most challenging semiconducting material for its strong gas sensing properties for more than five decades. In this review, we have focussed mainly on the response of SnO2 and SnO2 based modified materials towards hydrogen gas in the parts per million (ppm) to percentage (%) level. It is a highly challenging task to fabricate SnO2 based sensor devices exhibiting high sensitivity, stability and above all selectivity towards hydrogen. Though we have been partially successful in fabricating SnO2 based sensor units exhibiting high sensitivity and selectivity towards hydrogen, commercialization of such devices are still a distant reality.

Item Type:	Article
Subjects:	Electronics
Divisions:	Nano-Structured Materials
Depositing User:	Bidhan Chaudhuri
Date Deposited:	31 Dec 2015 12:10
Last Modified:	31 Dec 2015 12:10
URI:	http://cgcri.csircentral.net/id/eprint/3049

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