Record number :
Title of article :
Characteristic responses of a semiconductor gas sensor depending on the frequency of a periodic temperature change
Author/Authors :
Satoshi Nakata*، نويسنده , , Hirokazu Okunishi، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Pages :
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Abstract :
A novel gas-sensing system based on a dynamic nonlinear response is reported to enhance the selectivity toward sample gases using a single detector. A periodic temperature change was applied to a semiconductor gas sensor and the resulting conductance of the sensor was evaluated by fast Fourier transformation (FFT). The dynamic nonlinear response to the sample gases was further characterized depending on the frequency of the temperature change. The characteristic sensor response under the application of a temperature change was theoretically simulated by considering the kinetics of gas molecules on the semiconductor surface.
Keywords :
Gas sensor , temperature change , Tin dioxide , Semiconductor , Nonlinear
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science
Serial Year :
Link To Document :