| 退火对钨酸镉晶体光谱性能影响的研究 |
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| 引用本文： | 罗丽明,王英俭.退火对钨酸镉晶体光谱性能影响的研究[J].量子电子学报,2008,25(2):166-169. |
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| 作者姓名： | 罗丽明 王英俭 |
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| 作者单位： | 1. 中国科学院安徽光学精密机械研究所,安徽,合肥,230031;中国科学院研究生院,北京,100039;合肥科晶材料技术有限公司,安徽,合肥,230031
2. 中国科学院安徽光学精密机械研究所,安徽,合肥,230031 |
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| 摘 要： | 研究了提拉法生长的钨酸镉单晶在真空与氧气氛中退火对晶体透过率、激发发射光谱和荧光寿命等的影响,结果表明:氧退火有利于提高晶体的透过率与光产额,并在一定程度上提高了蓝光发射比例,提高了该晶体的能量分辨率,这可能是氧退火使晶体的氧空位减少,导致晶体在340～440 nm由氧空位缺陷产生的吸收减弱所致.同时,氧退火有利于缩短晶体的荧光寿命,从而提高钨酸镉的时间分辨率.
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| 关 键 词： | 材料 钨酸镉 退火 光致发光 荧光衰减寿命 闪烁体 |
| 文章编号： | 1007-5461(2008)02-0166-04 |
| 收稿时间： | 2007/5/8 |
| 修稿时间： | 2007年5月8日 |
Influence of annealing in different air atmosphere on optical properties of CdWO_4 |
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| LUO Li-ming,WANG Ying-jian.Influence of annealing in different air atmosphere on optical properties of CdWO_4[J].Chinese Journal of Quantum Electronics,2008,25(2):166-169. |
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| Authors: | LUO Li-ming WANG Ying-jian |
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| Affiliation: | LUO Li-ming~(1,2,3) WANG Ying-jian~1 1 Anhui Institute of Optics , Fine Mechanics,Chinese Academy of Scinences,Hefei 230031,China,2 Graduate School,Chinese Academy of Sciences,Beijing 10039,3 Hefei Kejing Materials Technology Co.,Ltd. |
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| Abstract: | The vacuum and oxygenous annealing effects on transmissivity,excitation,emission spectra and luminescence decay life time of the single crystal cadmium tungstate grown by Czochralski method are studied respectively,which indicate that oxygenous annealing is advantageous for increasing transmissivity, light yield,blue light emission proportion to a certain extent,and energy resolution of cadmium tungstate crystal.This may be caused by the oxygen vacuum reduced by oxygenous annealing and their absorption decr... |
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| Keywords: | materials CdWO_4 annealing photoluminescence decay life time scintillator |
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