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掺杂浓度对Mn掺杂ZnO纳米晶结构及光学性能的影响

发表时间:2013-11-30  浏览量:1275  下载量:560
全部作者: 杨蛟,骆英民,胡礼中,张贺秋,边继明
作者单位: 大连理工大学物理与光电工程学院
摘 要: 采用水热法制备Mn掺杂纳米晶ZnO样品,并利用X射线衍射(X-ray diffraction, XRD)、扫描电子显微镜(scanning electron microscope, SEM)和光致发光(photoluminescence, PL)谱等方法测试样品的结构、表面形貌及光学性质。结果表明:所有样品均具有六角纤锌矿结构,且其衍射峰均在(002)处强度最大,均具有明显的c轴择优取向,并且随着Mn含量在一定范围内增加,样品晶格常数增大,样品的紫外发光峰先红移后蓝移,表明适当的Mn掺杂有利于ZnO纳米线的横向生长。
关 键 词: 半导体材料;Mn掺杂纳米ZnO;光学性质;表面形貌;水热法
Title: Influence of doping concentration on the structure and optical properties of Mn doped ZnO nanocrystals
Author: YANG Jiao, LUO Yingmin, HU Lizhong, ZHANG Heqiu, BIAN Jiming
Organization: School of Physics and Optical Engineering, Dalian University of Technology
Abstract: Mn doped ZnO nanocrystalline was synthesized by means of hydrothermal method. The structure, morphology and optical properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence (PL) spectroscopy. The results showed that all the samples were hexagonal wurtzite structures, and their diffraction peaks were the largest at (002). In addition, all of them have c-axis preferred growth orientation. With increasing of the Mn content in an appropriate range, the lattice constant of samples increased, and the UV emission first red-shifted and then blue-shifted. This results suggested that appropriate Mn doping can promote the radial growth of ZnO nanowires.
Key words: semiconductor materials; Mn doped ZnO nanocrystalline; optical properties; surface morphology; hydrothermal method
发表期数: 2013年11月第22期
引用格式: 杨蛟,骆英民,胡礼中,等. 掺杂浓度对Mn掺杂ZnO纳米晶结构及光学性能的影响[J]. 中国科技论文在线精品论文,2013,6(22):2118-2122.
 
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