|
|||||
|
|
| 室温下激发强度对ZnO晶须发光的影响 | |
| 引用本文： | 郭星原,丁战辉,赵旭东,邱利霞,薛燕峰,许大鹏.室温下激发强度对ZnO晶须发光的影响[J].高等学校化学学报,2010,31(2):243-246. |
| 作者姓名： | 郭星原 丁战辉 赵旭东 邱利霞 薛燕峰 许大鹏 |
| 作者单位： | 1. 吉林大学物理学院,长春,130021 2. 吉林大学物理学院,长春,130021;吉林大学无机合成与制备化学国家重点实验室,长春,130012 3. 吉林大学无机合成与制备化学国家重点实验室,长春,130012 |
| 基金项目： | 中央高校基本科研业务费专项资金(批准号:20871052)资助 |
| 摘 要： | 采用浮区法(FZ)在高氧压条件下生长出大尺寸的ZnO单晶晶须.X射线衍射(XRD)和拉曼光谱(Raman)分析结果表明,生长的ZnO单晶晶须为六方结构晶体,沿(100)晶面方向有明显的择优生长取向.研究了0.3 MPa氧压下生长的ZnO晶须的变功率光致发光光谱,结果表明,晶须在室温下有比较高的紫外光致发光效率和较低的缺陷,其紫外发光激发强度的阈值1 kW/cm2. |
| 关 键 词： | 氧化锌 晶须 X射线衍射 拉曼光谱 光致发光 |
| 收稿时间： | 2009-03-23 |
Influence of Excitation Intensities on Photoluminescence of ZnO(Wurtzite) Whiskersat Room Temperature |
|
| GUO Xing-Yuan,DING Zhan-Hui,ZHAO Xu-Dong,QIU Li-Xia,XUE Yan-Feng,XU Da-Peng.Influence of Excitation Intensities on Photoluminescence of ZnO(Wurtzite) Whiskersat Room Temperature[J].Chemical Research In Chinese Universities,2010,31(2):243-246. | |
| Authors: | GUO Xing-Yuan DING Zhan-Hui ZHAO Xu-Dong QIU Li-Xia XUE Yan-Feng XU Da-Peng |
| Institution: | 1.College of Physics;Jilin University;Changchun 130021;China;2.State Key Laboratory of Inorganic Synthesis and Preparative Chemistry;Changchun 130012;China |
| Abstract: | ZnO(wurtzite) whiskers were grown with a floating zone method using ZnO powder as starting materials under 0.3 MPa oxygen pressures. The as-grown samples were characterized by X-ray diffraction and Raman scattering, and their characteristic peaks verify that the as-grown ZnO whiskers have excellent hexagonal wurtzite phase and (100) orientation. The photoluminescence properties of the as-grown ZnO whiskers were measured under 266 nm-light excitation from a Nd∶YAG laser, and the influence of various laser intensity on the photoluminescence of the ZnO whiskers was investigated. It was found that the threshold of UV was higher than 1 kW/cm2. |
| Keywords: | ZnO Whisker X-ray diffraction Raman spectrum Photoluminescence |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《高等学校化学学报》浏览原始摘要信息 | |
| 点击此处可从《高等学校化学学报》下载免费的PDF全文 | |