Very weak temperature quenching in orange luminescence of ZnS:Mn2+ nanocrystals in polymer

被引：58

作者：

Tanaka, M

Masumoto, Y

机构：

[1] Japan Sci & Technol Corp, ERATO, Single Quantum Dot Project, Tsukuba, Ibaraki 3002635, Japan

[2] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058571, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2000年 / 324卷 / 04期

关键词：

D O I：

10.1016/S0009-2614(00)00587-X

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：

A polyvinyl alcohol film containing ZnS:Mn2+ nanocrystals is prepared by a chemical method, and the temperature dependence of the Mn2+ luminescence intensity is investigated in the 9-305 K range. Under the interband excitation of the ZnS host crystals, the temperature quenching of the Mn2+ luminescence in the nanocrystals is found to be remarkably weak in comparison with the commercially available bulk powder. Probable causes of this difference are discussed in terms of the thermally induced dissociation of the exciton, the exciton-phonon interaction, and the rate of the energy transfer from the exciton to the Mn2+ ion. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：249 / 254

页数：6

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