Li Kan, Wei Zhiqiang, Zhu Xueliang, Zhao Wenhua, Zhang Xudong, Jiang Jinlong
1 School of Civil Engineering, Lanzhou University of Technology, Lanzhou, China.
2 School of Science, Lanzhou University of Technology, Lanzhou, China.
J Appl Biomater Funct Mater. 2018 Jan;16(1_suppl):105-111. doi: 10.1177/2280800017751492.
A one-dimensional ZnO nanostructure is a versatile and multifunctional n-type semiconductor. In this paper, ZnO nanorods were successfully prepared by the anodic arc plasma method in an oxidizing atmosphere.
The composition, morphology, crystal microstructure, and optical properties of ZnO nanorods were characterized by using X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM) and the corresponding selected-area electron diffraction (SAED), X-ray energy dispersive spectrometry (XEDS), ultraviolet-visible (UV-VIS) spectroscopy, Raman scattering spectrum (Raman), and photoluminescence spectrum (PL).
The experiment results show that ZnO nanorods synthesized by this method possess hexagonal wurtzite crystal structure with good crystallization, no other impurity phases are observed, the crystalline size is about 18 nm, and the lattice constant distortion occurs compared to that of bulk ZnO. The morphology of the sample is a rod-like shape, the length ranges from 100 nm to 300 nm, the average diameter is approximately 20 nm, and the aspect ratio is relatively high. The UV-VIS absorption spectrum occurs red shift, The Raman spectrum further demonstrates that the major peaks are assigned to ZnO optical vibrational modes, and the PL spectrum exhibits coexistence properties of ultraviolet (UV) and green emission.
The results prove that ZnO nanorods with hexagonal wurtzite crystal structure were successfully prepared by the anodic arc plasma method in an oxidizing atmosphere.
一维氧化锌纳米结构是一种多功能的n型半导体。本文采用阳极电弧等离子体法在氧化气氛中成功制备了氧化锌纳米棒。
利用X射线衍射（XRD）、高分辨率透射电子显微镜（HRTEM）及相应的选区电子衍射（SAED）、X射线能量色散谱（XEDS）、紫外可见（UV-VIS）光谱、拉曼散射光谱（Raman）和光致发光光谱（PL）对氧化锌纳米棒的组成、形貌、晶体微观结构和光学性质进行了表征。
实验结果表明，该方法合成的氧化锌纳米棒具有六方纤锌矿晶体结构，结晶良好，未观察到其他杂质相，晶体尺寸约为18nm，与块状氧化锌相比发生了晶格常数畸变。样品形貌为棒状，长度范围为100nm至300nm，平均直径约为20nm，长径比相对较高。UV-VIS吸收光谱发生红移，拉曼光谱进一步表明主要峰归属于氧化锌的光学振动模式，PL光谱呈现紫外（UV）和绿色发射的共存特性。
结果证明，采用阳极电弧等离子体法在氧化气氛中成功制备了具有六方纤锌矿晶体结构的氧化锌纳米棒。
