THE OPTICAL-CENTER MNO43- IN Y2SIO5MN, X (X=AL, CA)

被引：16

作者：

HOMMERICH, U ^{[1
]}

EILERS, H ^{[1
]}

YEN, WM ^{[1
]}

VERDUN, HR ^{[1
]}

机构：

[1] FIBERTEK INC,HERNDON,VA 22070

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 213卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0009-2614(93)85435-Q

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report spectroscopic investigations of Mn5+ doped in a new host material, namely Y2SiO5 (YSO). The 5+ valence state of manganese was obtained by employing two charge compensation schemes: Ca replacing Y and Al substituting for Si. Near-infrared luminescence peaking at around 1160 nm was observed at room temperature with a lifetime of 69.5 mus. At low temperatures the lifetime increased significantly to 604.5 mus and two electronic origins were resolved at 1161.1 nm (8613 cm-1) and 1169.7 nm (8562 cm-1). The electron origins are assigned to the orbital components of the spin-forbidden transition 1E-->3A2 (T(d) notation).

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页码：163 / 167

页数：5

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