کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
737315 | 1461911 | 2013 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and characterization of Cu-doped ZnO one-dimensional structures for miniaturized sensor applications with faster response Synthesis and characterization of Cu-doped ZnO one-dimensional structures for miniaturized sensor applications with faster response](/preview/png/737315.png)
Detection of chemicals and biological species is an important issue to human health and safety. In this paper, we report the hydrothermal synthesis at 95 °C of Cu-doped ZnO low-dimensional rods for room-temperature (RT) sensing applications and enhanced sensor performances. X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, Raman and photoluminescence are used to characterize the material properties. To demonstrate the suitability of the Cu-doped ZnO rods for gas sensor applications and for comparison with pure ZnO, we fabricated a double rod device using Focused Ion Beam. The responses of pure-ZnO and Cu-doped ZnO rods studied in exactly the same condition are reported. We found that Cu-ZnO sensors have enhanced RT sensitivity, faster response time, and good selectivity. Miniaturized Cu-ZnO rod-based sensors can serve as a good candidate for effective H2 detectors with low power consumption.
Journal: Sensors and Actuators A: Physical - Volume 189, 15 January 2013, Pages 399–408