Design and Fabrication of Micro Oxygen Sensor

Abstract:

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In the study, a MEMS-based gas sensor is presented, which consists of a sensing thin film deposited by RF sputtering and annealed at 375°C. The structure and surface pattern of the thin film are analyzed by XRD and SEM. The sensor consists of a substrate, Pt interdigitated electrodes and an SnO2 sensing layer. As concentration of oxygen changes, a change in the electrical conductivity of the SnO2 film is caused. The experimental results show that the measured resistance increases as the concentration of oxygen increases at a working temperature of 300°C. A good oxygen sensing performance is presented in the study.

Info:

Periodical:

Edited by:

Xiaohao Wang

Pages:

237-242

DOI:

10.4028/www.scientific.net/KEM.483.237

Citation:

C. Y. Lee et al., "Design and Fabrication of Micro Oxygen Sensor", Key Engineering Materials, Vol. 483, pp. 237-242, 2011

Online since:

June 2011

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Price:

$35.00

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