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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 |
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| ABSTRACT |
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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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