One phonon relaxation processes in Y2O3:Eu3+ nanocrystals

被引：36

作者：

Yang, HS

Feofilov, SP

Williams, DK

Milora, JC

Tissue, BM

Meltzer, RS

Dennis, WM ^{[1
]}

机构：

[1] Univ Georgia, Dept Phys & Astron, Athens, GA 30602 USA

[2] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[3] Virginia Polytech Inst & State Univ, Dept Chem, Blacksburg, VA 24061 USA

来源：

PHYSICA B | 1999年 / 263卷

基金：

美国国家科学基金会;

关键词：

electron-phonon interaction; nanoparticles; Y2O3 : Eu3+;

D O I：

10.1016/S0921-4526(98)01413-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The phonon spectrum for isolated nanoparticles is expected to become discrete with a gap opening up at very low frequencies. In this paper we investigate the effect of the modified phonon spectrum on the relaxation of closely spaced electronic levels. We compare the results for nanoparticles with those for larger (similar to mu m) size particles with the same crystal structure. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：476 / 478

页数：3

共 4 条

[1] Spectra and dynamics of monoclinic Eu2O3 and Eu3+:Y2O3 nanocrystals [J].