Mg掺杂对ZnO纳米棒阵列的形貌及光学性能的影响  

Effect of Mg doping on morphology and optical performance of ZnO nano-rod arrays

作　　者：于富成[1] 丁会云 耿武[1] 胡海龙[1] 何玲[1] 

机构地区：[1]兰州理工大学材料科学与工程学院,甘肃兰州730050

出　　处：《兰州理工大学学报》2017年第4期33-36,共4页Journal of Lanzhou University of Technology

基　　金：集成光电子学国家重点联合实验室开放基金(IOSKL2014KF01)的资助

摘　　要：采用水热法在AZO(Al掺杂ZnO)衬底上制备ZnO纳米棒阵列.探讨了Mg掺杂物质的量浓度对ZnO纳米棒形貌及光学性能的影响,采用XRD、SEM、PL分别对样品的结构、形貌、光致发光性能进行了表征.结果表明:Mg的掺入使ZnO纳米棒的直径减小,端面由六棱柱状结构转变为尖锥状结构,在Mg与Zn的原子比为6∶100时,纳米棒顶端已全部转变为锥状结构,纳米棒长度达到最大值2.32μm,且(002)晶面的衍射峰强度及紫外发射峰强度都达到最大值.The ZnO nano-rod array was prepared on AZO（ZnO doped with Al） substrate with hydrother-real method. The influence of Mg dopant concentration on the morphology and optical performance of ZnO nano-rod was explored, The structure, morphology, and photoluminescence performance of the samples were characterized by means of XRD, SEM, and PL. The result showed that the diameter of ZnO nano-rod would reduce with the doping of Mg and its ends would transformed from hexagonal prism into a pointed cone. When the atomic fraction ratio of Mg to Zn reaches to 6： 100, the top ends of nano-rods would totally convert to a tapered structure, the length of nano-rod would reach at its maximum as 2. 32 gin, and the diffraction peak intensity and the peak intensity of UV emission of （002） crystalplane would all reach at their maximum.

关 键 词：ZNO纳米棒 Mg掺杂 水热法 形貌 光致发光 

分 类 号：TB34[一般工业技术—材料科学与工程]