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YAP晶体变色现象的研究
Alternative TitleStudy on the Color Change of YAP Crystals
李涛; 赵广军; 何晓明; 徐军; 潘守夔
2002
Source Publication人工晶体学报
Volume31Issue:5Pages:456
AbstractYAlO_3(YAP)晶体具有优良的物理和化学性能,在许多方面都有广泛的应用前景。我们在对闪烁晶体Ce:YAP的研究过程中,发现了YAP晶体的变色现象。本文利用晶体透过谱对其颜色的变化进行了研究。不同的退火气氛及不同的掺杂成份对晶体颜色有较大影响。H_2气氛退火或掺杂Ce元素使晶体颜色变浅。而在空气中退火或掺杂Yb元素则使晶体颜色加深。针对这一变色现象,我们认为是在晶体生长过程由于电荷补偿的需要而产生的O~-心的吸收作用导致的。不同O~-心浓度其吸收作用不同,从而使晶体在400nm附近的透过率发生变化。采
SubtypeArticle
Other AbstractYAlO_3 (YAP) crystal has been widely investigated in various fields because of its favourable physical and chemical properties. In our research on scintillation crystal of Ce:YAP, a peculiar phenomenon of color change in YAP crystal was found. In this article, we studied this phenomenon by means of transmission spectra and found that different anneal conditions and different dopants could greatly influence the colors. Anneal in H_2 or Ce dopant could reduce the colors and anneal in atmosphere or Yb dopant could make the colors deeper. We think this color change should be ascribed to the electron trap O~- centers produced in crystal growth due to the charge compensation. The absorption effect of O~- centers lead to the change of the crystal transmission at about 400nm. All the phenomena could be reasonably interpreted with this model.
Indexed ByEI
Language中文
Document Type期刊论文
Version出版稿
Identifierhttp://ir.siom.ac.cn/handle/181231/17934
Collection激光与光电子功能材料研发中心
Affiliation1.李涛, 中国科学院上海光学精密机械研究所, 上海 201800, 中国.
2.赵广军, 中国科学院上海光学精密机械研究所, 上海 201800, 中国.
3.何晓明, 中国科学院上海光学精密机械研究所, 上海 201800, 中国.
4.徐军, 中国科学院上海光学精密机械研究所, 上海 201800, 中国.
5.潘守夔, 中国科学院上海光学精密机械研究所, 上海 201800, 中国.
Recommended Citation
GB/T 7714
李涛,赵广军,何晓明,等. YAP晶体变色现象的研究[J]. 人工晶体学报,2002,31(5):456.
APA 李涛,赵广军,何晓明,徐军,&潘守夔.(2002).YAP晶体变色现象的研究.人工晶体学报,31(5),456.
MLA 李涛,et al."YAP晶体变色现象的研究".人工晶体学报 31.5(2002):456.
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