کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
751720 | 895256 | 2007 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Ozone sensing properties of ZnO nanostructures grown by the aqueous chemical growth technique Ozone sensing properties of ZnO nanostructures grown by the aqueous chemical growth technique](/preview/png/751720.png)
ZnO nanostructures were deposited on glass substrates by the aqueous chemical growth technique at mild temperatures (95 °C). In general, flowerlike nanostructures are formed, their morphology and dimensions depending on deposition time. Under ultraviolet irradiation and subsequent exposure to ozone atmosphere, the ZnO samples show electrical current changes of three up to six orders of magnitude at room temperature, depending on surface morphology, substrate coverage and average thickness. Samples deposited for 5 h exhibit the highest ozone sensor response, i.e. 106, due to their high surface-to-volume ratio. It is concluded that the ZnO nanostructured samples grown by aqueous chemical growth at low temperatures are promising candidates for semiconductor room temperature ozone sensors.
Journal: Sensors and Actuators B: Chemical - Volume 124, Issue 1, 10 June 2007, Pages 187–191