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J. Korean Ceram. Soc. > Volume 29(7); 1992 > Article
Journal of the Korean Ceramic Society 1992;29(7): 565.
ZnO와 CuO의 접촉형 세라믹스의 일산화탄소 가스 감응특성
전석택, 최경만
포항공과대학 재료금속공학과
Co Gas Sensing Property of ZnO/CuO Hetero-Contact Ceramics
ABSTRACT
Gas sensing properties of P-N contact ceramics, composed of ZnO and CuO pairs sintered at different temperatures, were studied for 1% CO gas. Between 10$0^{circ}C$ and 32$0^{circ}C$ temperature range, it was observed that 2-probe current-voltage (I-V) characteristics, temperature and voltage dependence of sensivities were dependant largely upon ZnO samples. Pairs including a ZnO sample sintered at 110$0^{circ}C$ showed maximum senitivity of 9 and 13 depending upon counterpart CuO samples, at 260~29$0^{circ}C$. On the other hand, pairs including a ZnO samples sintered at 90$0^{circ}C$ showed increasing sensitivity within in the measured temperature range and maximum sensitivities were about 4.
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