Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 134, Issue 1, Pages 166-170Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2008.04.024
Keywords
Dumbbell-like ZnO; Acetone; Ethanol; Gas sensor
Funding
- Science and Technology Office, Jilin Province,China [2006528]
- Open Project of Key Laboratory of Low Dimensional Materials & Application Technology (Xiangtan University)
- Ministry of Education, China [KF0706]
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Dumbbell-like ZnO microcrystals have been obtained through a facile solution method. The structure, morphology and optical properties of the as-prepared ZnO microcrystals have been characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy and photoluminescence. The as-prepared ZnO microcrystals exhibit excellent sensing properties against acetone at an operating temperature of 300 degrees C. The response and recovery times are found to be 1.5 and 3 s, respectively. Moreover, the sensor holds the successful discrimination between acetone and ethanol, which makes our product a good candidate in fabricating highly selective sensors in practice. (C) 2008 Elsevier B.V. All rights reserved.
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