నైరూప్య

Optical characteristics of ZnO single crystal grown by the hydrothermal method

Guangzhu Chen, Yin Hang, Jigang Yin, Chengchun Zhao, Lianhan Zhang, Peixiong Zhang

ZnO single crystals have been grown by the hydrothermal method. Raman scattering and Photoluminescence spectroscopy (PL) have been used to study samples of ZnO that were unannealed or annealed in different ambient gases. It is suggested that the green emission may originate from defects related to copper in our samples.