一维纳米结构氧化锌的水热法制备及紫外光敏特性研究

Hydrothermal Synthesis of One Dimensional Nanostructure ZnO and Its Ultraviolet Photosensitivity Characteristics

在陶瓷衬底上制作叉指状金电极,采用低温水热法生长一维纳米结构氧化锌,制得氧化锌紫外光电导型探测器。探讨了反应溶液的浓度对氧化锌纳米结构形貌及紫外光电导特性的影响。X射线衍射分析表明,产物为六方纤锌矿结构的ZnO。扫描电镜观察显示,产物为一维纳米结构,因反应溶液浓度的不同直径介于80～500nm。光电测试表明,一维纳米结构氧化锌的紫外光电导特性受其表面形貌的影响显著。

Comb-shaped Au electrodes are prepared on ceramic substrate firstly, and then the one dimensional nanostructure is synthesised by hydrothermal method in order to get ZnO UV detector. The effect of the concentration of solution on the growth of nanostructure ZnO and UV sensitivity has been studied. X-ray diffraction patterns indicate that the product is pure phase zinc oxide. The morphology of one dimensional nanostructure is characterized by SEM. The diameter of one dimensional nanostructure ZnO obtained is 80～500nm. Test shows that the UV conductivity properties of ZnO are affected by their surface topography.