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温梯法白宝石晶体的缺陷研究
Alternative TitleDefect Study of Sapphire Crystal Grown by Temperature Gradient Technique
李抒智; 周圣明; 司继良; 周国清; 董永军; 徐军
2003
Source Publication人工晶体学报
Volume32Issue:5Pages:491
Abstract采用导向温梯法(TGT)生长出[0001]方向直径为76mm的白宝石晶体。利用扫描电子显微镜(SEM)观察晶体(0001)面的腐蚀坑形态,并对晶体内部的包裹物进行了能谱(EDS)分析。白宝石晶体中的生长缺陷主要为位错和包裹体等。Al_2O_3晶体(0001)面的位错腐蚀坑呈六角形,并且有台阶状结构。分析了(0001)面内的位错类型。确定了TGT法生长的白宝石内部的包裹物的主要成分为碳。
SubtypeArticle
Other AbstractHigh quality sapphire crystal oriented along [ 0001 ] was grown by the temperature gradient technique. The etch pits in (0001) plane were observed by scanning electron microscope ( SEM) , and the inclusions were analyzed by energy dispersive spectroscopy (EDS). The defects observed in as-grown crystal mainly originate from dislocations and inclusions. The shape of etch pits located in (0001) plane of Al_2O_3 crystal exhibits as a hexagon with sidestep-like structure. The type of dislocations of (0001) slices was studied by SEM images. The components of inclusions in sapphire crystal grown by TGT method are identified as carbon.
Indexed ByEI
Language中文
Document Type期刊论文
Version出版稿
Identifierhttp://ir.siom.ac.cn/handle/181231/18337
Collection激光与光电子功能材料研发中心
Affiliation1.Li Shuzhi, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
2.Zhou Shengming, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
3.Si Jiliang, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
4.Zhou Guoqing, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
5.Dong Yongjun, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
6.Xu Jun, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
Recommended Citation
GB/T 7714
李抒智,周圣明,司继良,等. 温梯法白宝石晶体的缺陷研究[J]. 人工晶体学报,2003,32(5):491.
APA 李抒智,周圣明,司继良,周国清,董永军,&徐军.(2003).温梯法白宝石晶体的缺陷研究.人工晶体学报,32(5),491.
MLA 李抒智,et al."温梯法白宝石晶体的缺陷研究".人工晶体学报 32.5(2003):491.
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