Spectroscopic Properties of Ce:YAP Scintillation Crystal Grown by Temperature Gradient Technique  

作　　者：李红军 赵广军 苏良碧 晋云霞 周国清 徐军 

机构地区：[1]Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences

出　　处：《Journal of Rare Earths》2007年第5期596-600,共5页稀土学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (60607015)

摘　　要：Spectroscopic properties of Ce-doped yttrium orthoaluminate （Ce：YA1O3 or Ce：YAP） crystals gown by temperature gradient technique （TGT） were investigated, and the effects of the growth conditions on the properties were analyzed. Methods of optical absorption （OA）, photoluminescence （PL）, photoluminescence decay （PLD）, X-my excited luminescence （XL） and cathodeluminescence （CL） were used in these investigations. The results showed that the absorption band peak at 202,394 and 532 nm originated from F and F^＋ color center induced by the weak reducing growth atmosphere, green emission band near 500 nm derived from Ce3^＋ -Ce^3＋ pairs and band at 650 - 850 nm from some unintentional impurity in crystals.Spectroscopic properties of Ce-doped yttrium orthoaluminate （Ce：YA1O3 or Ce：YAP） crystals gown by temperature gradient technique （TGT） were investigated, and the effects of the growth conditions on the properties were analyzed. Methods of optical absorption （OA）, photoluminescence （PL）, photoluminescence decay （PLD）, X-my excited luminescence （XL） and cathodeluminescence （CL） were used in these investigations. The results showed that the absorption band peak at 202,394 and 532 nm originated from F and F^＋ color center induced by the weak reducing growth atmosphere, green emission band near 500 nm derived from Ce3^＋ -Ce^3＋ pairs and band at 650 - 850 nm from some unintentional impurity in crystals.

关 键 词：Ce：YAP scintillation crystal spectroscopic property color center rare earths 

分 类 号：O614.33[理学—无机化学]