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    Wang Chang-Yuan, Yang Xiao-Hong, Ma Yong, Feng Yuan-Yuan, Xiong Jin-Long, Wang Wei
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    • High-quality ZnO and Cd-doped ZnO nanorods with different Cd-doping concentrations are synthesized by using the hydrothermal method. Microstructures and photoluminescence of the samples are systematically investigated by SEM, X-ray diffraction (XRD), Raman scattering spectrum and photoluminescence (PL) spectrum. Results of XRD analysis indicate that ZnO and ZnO:Cd crystallites exhibit a hexagonal wurtzite structure. SEM shows that the nanorods become smaller due to Cd doping. There is an internal tension which induces the decrease of optical band gap in Cd-doped nanorods. Cd-doping increases the intensity of violet emission peak near 2.90 eV and the blue emission peak located at 2.67 eV appears when the doping concentration is up to 2%. This study can be used for developing blue-violet-emitting devices.
        • Funds:Project supported by the Doctoral Foundation of Chongqing Normal University, China (Grant No. 10XLB001), and the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 61106129).
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      Metrics
      • Abstract views:6172
      • PDF Downloads:622
      • Cited By:0
      Publishing process
      • Received Date:11 March 2014
      • Accepted Date:08 April 2014
      • Published Online:05 August 2014

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