Selective acetone sensor based on dumbbell-like ZnO with rapid response and recovery |
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| Authors: | Qi Tong Li Xuejun Qingjiang Yi Haibin |
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| Affiliation: | aState Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China;bKey Laboratory of Low Dimensional Materials & Application Technology, Ministry of Education, Xiangtan 411105, PR China;cCollege of Physics, Jilin University, Changchun 130012, PR China;dNational Laboratory of Superhard Materials, Jilin University, Changchun 130012, PR China |
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| Abstract: | 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 °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. |
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| Keywords: | Dumbbell-like ZnO Acetone Ethanol Gas sensor |
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