›› 2015, Vol. 24 ›› Issue (1): 18503-018503.doi: 10.1088/1674-1056/24/1/018503

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Excellent acetone sensing properties of porous ZnO

刘唱白, 刘星熠, 王圣蕾   

  1. College of Electronic Science & Engineering, Jilin University, Changchun 130012, China
  • 收稿日期:2014-04-18 修回日期:2014-09-07 出版日期:2015-01-05 发布日期:2015-01-05
  • 基金资助:
    Projected supported by the Project of Challenge Cup for College Students, China (Grant No. 450060497053).

Excellent acetone sensing properties of porous ZnO

Liu Chang-Bai (刘唱白), Liu Xing-Yi (刘星熠), Wang Sheng-Lei (王圣蕾)   

  1. College of Electronic Science & Engineering, Jilin University, Changchun 130012, China
  • Received:2014-04-18 Revised:2014-09-07 Online:2015-01-05 Published:2015-01-05
  • Contact: Liu Chang-Bai E-mail:liwei99@jlu.edu.cn
  • Supported by:
    Projected supported by the Project of Challenge Cup for College Students, China (Grant No. 450060497053).

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摘要： Porous ZnO was obtained by hydrothermal method. The results of scanning electron microscope revealed the porous structure in the as-prepared materials. The acetone sensing test results of porous ZnO show that porous ZnO possesses excellent acetone gas sensing properties. The response is 35.5 at the optimum operating temperature of 320 ℃ to 100 ppm acetone. The response and recovery times to 50 ppm acetone are 2 s and 8 s, respectively. The lowest detecting limit to acetone is 0.25 ppm, and the response value is 3.8. Moreover, the sensors also exhibit excellent selectivity and long-time stability to acetone.

关键词: porous ZnO, acetone, gas sensor

Abstract: Porous ZnO was obtained by hydrothermal method. The results of scanning electron microscope revealed the porous structure in the as-prepared materials. The acetone sensing test results of porous ZnO show that porous ZnO possesses excellent acetone gas sensing properties. The response is 35.5 at the optimum operating temperature of 320 ℃ to 100 ppm acetone. The response and recovery times to 50 ppm acetone are 2 s and 8 s, respectively. The lowest detecting limit to acetone is 0.25 ppm, and the response value is 3.8. Moreover, the sensors also exhibit excellent selectivity and long-time stability to acetone.

Key words: porous ZnO, acetone, gas sensor

中图分类号:  (Micro- and nano-electromechanical systems (MEMS/NEMS) and devices)

  • 85.85.+j
85.35.-p (Nanoelectronic devices) 81.07.-b (Nanoscale materials and structures: fabrication and characterization)