Influence of surface quenching effects on luminescent dynamics of ZnS:Mn2+ nanocrystals

被引：1

作者：

Gao Chang-Cheng ^{[1
]}

Huang Shi-Hua ^{[1
]}

You Fang-Tian ^{[1
]}

Kang Kai ^{[1
]}

Feng Ying ^{[1
]}

机构：

[1] Beijing Jiaotong Univ, Inst Optoelect Technol, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2008年 / 25卷 / 02期

关键词：

PHOTOLUMINESCENCE; ENHANCEMENT;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A model describing surface quenching of isolated ion centres in nanocrystals is proposed based on the energy transfer between the doped ions and the nanocrystalline surface quenching centres. The quenching rate depends on the position of the ions in the nanocrystal, hence the decay curve under non-selective excitation is generally nonexponential. The decay curve calculated with this model is in good agreement with that of the T-4(1) -> (6)A(1) emission in ZnS:Mn2+ nanocrystals.

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页码：698 / 699

页数：2

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