Photoluminescence of CaS:Eu2+ under hydrostatic pressure

被引：0

作者：

Chen, C

Teo, KL

Chong, TC

Newman, DM

机构：

[1] Natl Univ Singapore, Informat Storage Mat Lab, Dept Elect & Comp Engn, Singapore 117576, Singapore

[2] Data Storage Inst, Singapore 117608, Singapore

[3] Univ Exeter, Sch Engn Comp Sci & Math, Exeter EX4 4QF, Devon, England

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2004年 / 241卷 / 14期

关键词：

D O I：

10.1002/pssb.200405238

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have studied the hydrostatic pressure dependence of the emission of CaS doped with Eu2+. For P greater than or equal to 70 kbar, we observed the main the emission peak broadens and appears to 'split' into two peaks with the low-energy peak increasing in intensity relative to the main energy peak. We proposed that more than one excited state could be thermally populated at room temperature. The quenching of the luminescence can be explained by the presence of an intervening state using a single configuration coordinate model.

引用

页码：3306 / 3310

页数：5

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