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Author Seon-Jeen Kim ♦ Byung-Hyun Jeon ♦ Kyu-Seong Choi
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1990
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Silicon ♦ Temperature sensors ♦ Capacitive sensors ♦ Capacitance measurement ♦ Gas detectors ♦ Chemical sensors ♦ Ethanol ♦ Electric variables measurement ♦ Lighting ♦ Chemical technology
Abstract A capacitance-type alcohol gas sensor using porous silicon as a sensitive layer is developed to measure low alcohol concentration at room temperature. Although the sensor using porous silicon layer shows some sensitivity at room temperature by large internal surface area, but there is still much room for improvement. In this work, we measured the variation of capacitance of the sensor under illumination of 254 nm UV light. As the result, the increase in the slope was observed, and it is supposed that UV light activates the response of the oriental polarization which has a slow relaxation time for AC field.
Description Author affiliation: Sch. of Electr. & Electron. Eng., Kyungnam Univ., Masan, South Korea (Seon-Jeen Kim)
ISBN 0780351398
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1999-10-05
Publisher Place Romania
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 203.36 kB
Page Count 4
Starting Page 475
Ending Page 478

Source: IEEE Xplore Digital Library