| 聚合物前驱体制备层状SiC纳米棒的光学性质 |
| |
| 引用本文： | 金华,李锦涛,张立功,郑著宏,安立楠,申德振.聚合物前驱体制备层状SiC纳米棒的光学性质[J].发光学报,2009,30(2):219-222. |
| |
| 作者姓名： | 金华 李锦涛 张立功 郑著宏 安立楠 申德振 |
| |
| 作者单位： | 1. 中国人民公安大学 安全防范系, 北京 102614;2. 中国科学院 激发态物理重点实验室, 吉林 长春 130033 |
| |
| 摘 要： | 采用聚硅氮烷前驱体在高温常压下热裂解方法制备了SiC纳米棒。透射电镜图表明SiC纳米棒中包含有独特的层状结构,电子能谱表明SiC纳米棒中的C ∶ Si组分比接近1 ∶ 1。用X射线衍射和喇曼光谱表征了SiC纳米棒的结构和成分,层状结构为6H-SiC和3C-SiC交替形成所致。利用光致发光谱在该层状结构中观察到强的紫外发射,认为强而锐的紫外发射峰是来源于厚度比较均一的6H-SiC层。
|
| 关 键 词： | SiC 纳米棒 层状结构 光致发光 |
| 收稿时间： | 2008-08-25 |
Optical Properties of SiC Nanorods with Sandwich Structure Synthesized by Pyrolysis of Polymer |
| |
| JIN Hua,LI Jin-tao,ZHANG Li-gong,ZHENG Zhu-hong,AN Li-nan,SHEN De-zhen.Optical Properties of SiC Nanorods with Sandwich Structure Synthesized by Pyrolysis of Polymer[J].Chinese Journal of Luminescence,2009,30(2):219-222. |
| |
| Authors: | JIN Hua LI Jin-tao ZHANG Li-gong ZHENG Zhu-hong AN Li-nan SHEN De-zhen |
| |
| Institution: | 1. Security and Prevention Department, Chinese Peoples Public Security University, Beijing 102416, China;
2. Key Laboratory of Excited State Processes, Chinese Academy of Sciences, Changchun 130033, China |
| |
| Abstract: | Silicon carbide(SiC) is known for its wide-band-gap electronic structure as well as excellent thermal and mechanical properties,thus is potentially useful for applications in high-temperature electronics and short-wavelength optics.However,applications of SiC in optical devices are limited by its indirect band gap nature,which results in very low light emission efficiency.In this paper,SiC nanorods were synthesized via catalyst-assistant crystallization of amorphous silicon carbonitride.And an intensive sha... |
| |
| Keywords: | SiC |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《发光学报》浏览原始摘要信息 |
| 点击此处可从《发光学报》下载免费的PDF全文 |
|
