Title

Synthesis And Characterization Of Cu-Doped Zno One-Dimensional Structures For Miniaturized Sensor Applications With Faster Response

Keywords

Crystal; Cu-doping; Microrod; Sensor; ZnO

Abstract

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. © 2012 Elsevier B.V.

Publication Date

1-1-2013

Publication Title

Sensors and Actuators, A: Physical

Volume

189

Number of Pages

399-408

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.sna.2012.09.006

Socpus ID

84870882614 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84870882614

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