TITLE

Low voltage active pressure sensor based on polymer space-charge-limited transistor

AUTHOR(S)

Yu-Chiang Chao; Wei-Jen Lai; Chun-Yu Chen; Hsin-Fei Meng; Hsiao-Wen Zan; Sheng-Fu Horng

PUB. DATE

December 2009

SOURCE

Applied Physics Letters;12/21/2009, Vol. 95 Issue 25, p253306

SOURCE TYPE

Academic Journal

DOC. TYPE

Article

ABSTRACT

Low voltage active pressure sensor is realized by vertically stacking a pressure sensitive rubber on a polymer space-charge-limited transistor. The sensor can be turned on and off by modulating the metal-grid base voltage within the range of 3 V. The output current is irrelevant to the pressure as the sensor is off. As the sensor is turned on, the output current values can be used to monitor the pressure. Reversible pressure sensing characteristics is observed below the pressure of 7.11 psi. The response time of the sensor to the pressure is as short as 22 ms.

ACCESSION #

47132823

 

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