High Performance Micro-Structure Sensor Based on TiO2 Nanofibers for Ethanol Detection

Liu Li; Zhang Tong; Wang Zhi-Jun; Li Shou-Chun; Tian Yun-Xia; Li Wei

doi:10.1088/0256-307X/26/9/090701

Chinese Physics Letters

High Performance Micro-Structure Sensor Based on TiO₂ Nanofibers for Ethanol Detection

Liu Li^1,2, Zhang Tong³, Wang Zhi-Jun^1,2, Li Shou-Chun^1,2, Tian Yun-Xia^1,2 and Li Wei^1,2

2009 Chinese Physical Society and IOP Publishing Ltd
Chinese Physics Letters, Volume 26, Number 9 Citation Liu Li et al 2009 Chinese Phys. Lett. 26 090701 DOI 10.1088/0256-307X/26/9/090701

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liuli_teacher@163.com

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¹ College of Physics, Jilin University, Changchun 130012

² National Laboratory of Superhard Materials, Jilin University, Changchun 130012

³ State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012

Dates

Received 10 June 2009

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Abstract

TiO₂ nanofibers are synthesized via a simple electrospinning method and coated on a silicon substrate with Pt electrodes to fabricate a micro-structure sensor. This sensor exhibits high ethanol sensing properties at 300 °C. The sensitivity is up to 4 when the sensor is exposed to 1 ppm ethanol, the response time is about 3 s, and the recovery is about 5 s.

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