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

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

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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.

Original languageEnglish
Article number253306
JournalApplied Physics Letters
Issue number25
Publication statusPublished - 2009 Dec 1


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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