Microstructure and photoluminescence of ZnO:Cd nanorods synthesized by hydrothermal method

作者：Wang Chang-Yuan; Yang Xiao-Hong^*; Ma Yong; Feng Yuan-Yuan; Xiong Jin-Long; Wang Wei

来源：Acta Physica Sinica, 2014, 63(15): 157701.

DOI：10.7498/aps.63.157701

• hydrothermal method
• ZnO:Cd nanorods
• microstructures
• photoluminescence (PL) spectrum

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.

• 出版日期2014-8
• 单位重庆师范大学