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후막형 에탄올 가스 감지소자의 제조 및 특성

Fabrication and ethanol gas sensing characteristics of the thick film ethanol gas sensors

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Abstract

SnO2-based thick film ethanol gas sensors were fabricated on alumina substrates and their ethanol gas sensingcharacteristics were investigated. The film sintered at 40oC for 2 hrs. showed the highest sensitivity to ethanol gas andthe sensitivity of the film to 1000 ppm ethanol gas in air was 97 % at an operating temperature of 250oC. The additionof Fe2O3 to SnO2 enhanced the sensitivity by changing the type and number of surface acidic/basic sites.

참고문헌 (9)

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