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根据氧表面吸附模式、载流子穿越势垒理论和陶瓷的显微结构理论,重点讨论了SnO_2气敏元件的阻温特性.由此得出各温区中影响元件固有电阻值的主要因素,为改善SnO_2半导瓷气敏元件的性能提供了一些参考理论.
According to the adsorption mode of oxygen surface, the carrier crossing barrier theory and the microstructure theory of ceramic, the temperature-resistance characteristics of SnO_2 gas sensor are discussed emphatically.The main factors affecting the intrinsic resistance value of each element are obtained, Some reference theories are provided to improve the performance of SnO_2 semiconducting gas sensors.