中文摘要：

在房间温度的做 Cu 的 ZnO nanosheets 的合成在我们的以前的纸被报导。退火的效果做 Cu 的 ZnO nanosheets 上的温度在这份报纸被学习。做 Cu 的 ZnO nanosheets 在空中在 200 –500°C 被退火。退火的标本被扫描电子显微镜学(SEM ) 描绘， X 光检查衍射(XRD ) 和传播电子显微镜学(TEM ) 。结果在与增加退火的温度减少的做 Cu 的 ZnO nanosheets 显示出那 Cu 集中。当退火时，温度比融化点(410 °C ) 的 Zn 低，做 Cu 的 ZnO nanosheets 的形态学在退火前与那一样将近留下了。当退火的温度在 Zn 上融化点时，做 Cu 的 ZnO nanosheets 不管多么改变了到 nanowires， wormlike nanosheets 或没变化。在做 Cu 的 ZnO nanosheets 的 Cu 集中的变化被氧化热力学解释。一个物理模型被建议解释做 Cu 的 ZnO nanosheets 的形态学变化，基于在做 Cu 的 ZnO nanosheets 下面的 Cu 富有的层的存在。

英文摘要：

The synthesis of Cu-doped ZnO nanosheets at room temperature was reported in our previous paper. The effects of annealing temperature on Cu-doped ZnO nanosheets were studied in this paper. Cu-doped ZnO nanosheets were annealed at 200-500℃ in air. The annealed specimens were characterized by scanning electron microscopy （SEM）, X-ray diffraction （XRD） and transmission electron microscopy （TEM）. The results show that Cu concentration in Cu-doped ZnO nanosheets reduced with increasing annealing temperature. When annealing temperature was lower than Zn melting point （410℃）, the morphologies of the Cu-doped ZnO nanosheets remained nearly the same as that before annealing. However, when the annealing temperature was over Zn melting point, Cu-doped ZnO nanosheets changed to nanowires, wormlike nanosheets or did not change. The change of Cu concentration in Cu-doped ZnO nanosheets is explained by oxidation thermodynamics. A physical model is suggested to explain the morphology changes of Cu-doped ZnO nanosheets, based on the existence of Cu-rich layer beneath Cu-doped ZnO nanosheets.