取向排列的氧化锌纳米线/纳米带作为室温一氧化氮气体传感器的应用。
Application of aligned ZnO nanowires/nanobelts as a room temperature NO gas sensor.
作者信息
Kaur Manmeet, Chauhan Shiv Veer Singh, Sinha Shivangi, Bharti Meetu, Mohan Rajneesh, Gupta S K, Yakhmi J V
机构信息
Technical Physics and Prototype Engineering Division, B.A.R.C, Mumbai 400085, India.
出版信息
J Nanosci Nanotechnol. 2009 Sep;9(9):5293-7. doi: 10.1166/jnn.2009.1118.
Gas sensing properties of devices fabricated using ZnO nanowires/nanobelts (NS) aligned between two electrodes using dielectrophoresis technique were investigated. ZnO nanostructures were synthesized by carbothermal method. The devices were characterized as gas sensors and showed high sensitivity for detection of NO gas at room temperature. Typical sensor response, defined as the relative change in resistance, due to the introduction of the gas was found to be approximately 500% for 40 ppm of NO gas. The devices showed average response and recovery times of about 30 s and 1 min respectively. The results demonstrate the potential of fabricating nanosized sensors using single nanowires/nanobelts.
研究了利用介电泳技术将氧化锌纳米线/纳米带（NS）排列在两个电极之间制造的器件的气敏特性。氧化锌纳米结构通过碳热法合成。这些器件被表征为气体传感器，在室温下对一氧化氮气体的检测显示出高灵敏度。典型的传感器响应，定义为由于气体引入导致的电阻相对变化，对于40 ppm的一氧化氮气体，发现约为500%。这些器件的平均响应时间和恢复时间分别约为30秒和1分钟。结果证明了使用单根纳米线/纳米带制造纳米尺寸传感器的潜力。
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