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http://dx.doi.org/10.5369/JSST.2009.18.6.456

Characteristics of perovskite-structure Sr(Ti1-xFex)O3 thick film gas sensors  

Jin, Guang-Hu (Department of Advanced Materials Engineering, Chosun University)
Lee, Woon-Young (Education Center of Mold Technology for Advanced Materials & Parts all Rights Reserved, Chosun University)
Lee, Hyun-Gyu (Department of Advanced Materials Engineering, Chosun University)
Park, Jin-Seong (Department of Advanced Materials Engineering, Chosun University)
Publication Information
Journal of Sensor Science and Technology / v.18, no.6, 2009 , pp. 456-461 More about this Journal
Abstract
Perovskite-structure $Sr(Ti_{1-x}Fe_x)O_3$ thick films, in which x is 0.4 or 0.6, were prepared by normal ceramic process on alumina substrate. Electrical resistance was measured as a function of thermal treatment condition including atmosphere, time, and temperature. The resistance of $Sr(Ti_{1-x}Fe_x)O_3$ films is lower than those of $SrTiO_3$ or $SrFeO_3$ films. The temperature coefficient of resistance over $550^{\circ}C$ was measured to be 0 for the $Sr(Ti_{1-x}Fe_x)O_3$ films after thermal treatment at $1100^{\circ}C$ in air. The sensing property of the films was also measured as a function of temperature and gas such as $O_2$, CO, $CO_2$, NO and $NO_2$. $Sr(Ti_{1-x}Fe_x)O_3$ films showed a good sensing property for $O_2$, but no sensing signal for CO, $CO_2$, NO and $NO_2$.
Keywords
$Sr(Ti_{1-x}Fe_x)O_3$; perovskite structure; resistive sensor; gas sensor;
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Times Cited By KSCI : 1  (Citation Analysis)
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