Abstract
NO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> gas Sensing characteristics of thin films of Zinc oxide obtained by spray pyrolysis were studied. The film thickness was about 550nm. The effect of indium doping on the sensor performance were also studied. The sensing behavior in the temperature range of 100–225°C was measured to find out the optimal working temperature.
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