Color center formation in α-Al2O3 induced by high energy 56Fe ions

SONG Yufeng1; 3 ZHU Zhiyong1 SUN Youmei2 JIN Yunfan2 PAN Qiangyan1 1

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Color center formation in α-Al₂O₃ induced by high energy ⁵⁶Fe ions

更新时间：2021-03-12

- Color center formation in α-Al₂O₃ induced by high energy ⁵⁶Fe ions
- NUCLEAR TECHNIQUES Issue 2, (2007)
- 作者机构：
  
  1. 中国科学院上海应用物理研究所
  2. 中国科学院兰州近代物理研究所
  3. 中国科学院上海应用物理研究所上海201800中国科学院研究生院北京,100049
  4. ,兰州,730000
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(项目号:10575128)资助
- DOI：
  CLC： O482.3
- Published：01 February 2007
- 稿件说明：
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[1]宋玉峰,朱智勇,孙友梅,金运范,潘强岩.高能铁离子辐照单晶氧化铝产生的色心研究[J].核技术,2007(02):114-118.

SONG Yufeng1, 3 ZHU Zhiyong1 SUN Youmei2 JIN Yunfan2 PAN Qiangyan1 1. Color center formation in α-Al₂O₃ induced by high energy ⁵⁶Fe ions[J]. Nuclear techniques, 2007, (2): 114-118.
[1]宋玉峰,朱智勇,孙友梅,金运范,潘强岩.高能铁离子辐照单晶氧化铝产生的色心研究[J].核技术,2007(02):114-118. DOI：

SONG Yufeng1, 3 ZHU Zhiyong1 SUN Youmei2 JIN Yunfan2 PAN Qiangyan1 1. Color center formation in α-Al₂O₃ induced by high energy ⁵⁶Fe ions[J]. Nuclear techniques, 2007, (2): 114-118. DOI：

摘要

室温下利用紫外-可见吸收光谱和荧光光谱技术对1.157GeV的56Fe离子注入辐照的单晶三氧化二铝（α-Al2O3）进行了测量分析

研究了辐照产生的阴离子空位的形成和演化规律。测量结果显示

高能Fe离子辐照产生了多种阴离子空位型缺陷

其中包括F、F+、F2+、F22+和F2心。随入射离子剂量的增加

各类缺陷的数量逐渐增大

并在高剂量时趋于饱和

但各类缺陷间的相对数量存在一定的比例

不随剂量的增加而有明显变化。用单离子饱和损伤模型对实验结果进行了拟合

获得各类色心的产生截面在40—90nm2之间。与TRIM程序计算结果比较后发现

室温下辐照时阴离子单空位的产生速率约是由核能损过程在低温下产生缺陷速率的一半。

Abstract

Single crystalline α-Al2O3 samples were irradiated with 1.157GeV 56Fe ions at room temperature to fluence range from 5×1011 to 6×1012cm-2. The radiation induced defects were investigated by ultraviolet-visible and photoluminescence spectra measurements. Various anion vacancies such as F

F+

F2+

F22+and F2 color centers were induced by the irradiation with the production cross-sections ranging from 40 to 90nm2. The number densities of the defects increase with the increase of fluence and come to saturation at high fluences. However

no distinct changes in their relative amount between these centers were observed. From comparison with theoretical calculations it is realized that the initial production rate of anion single vacancies at room temperature is about half of that produced by nuclear energy loss processes at low temperature.

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