Photoluminescence of CdS:Mn2+ and Eu3+ nanoparticles dispersed in zirconia sol-gel films

被引：51

作者：

Morita, M ^{[1
]}

Rau, D

Fujii, H

Minami, Y

Murakami, S

Baba, M

Yoshita, M

Akiyama, H

机构：

[1] Seikei Univ, Fac Engn, Dept Ind Chem, Musashino, Tokyo 1808633, Japan

[2] Univ Tokyo, Inst Solid State Phys, Minato Ku, Tokyo 1068666, Japan

来源：

JOURNAL OF LUMINESCENCE | 2000年 / 87-9卷

关键词：

nanoparticles; photoluminescence; CdS : Mn3+; Eu3+; sol-gel film;

D O I：

10.1016/S0022-2313(99)00215-X

中图分类号：

O43 [光学];

学科分类号：

070207 [光学]; 0803 [光学工程];

摘要：

Preparation and luminescence properties in the temperature range between 10 and 300 K of the CdS : Mn2+ (or EU3+) nanoparticles in sol-gel ZrO2 films are reported. Luminescence spectra of ZrO2/ CdS : Mn2+ films at 10 K appear as a very broad band, centered at 16 000 cm(-1), extending over the spectral region 25 000-12 000 cm(-1). Chemically prepared films of ZrO2, ZrO2 :Mn2+, ZrO2 :CdS, and CdS : Mn2+ components serve to resolve emission centers by luminescence, decay times and excitation spectral shifts. ZrO2/CdS : EU3+ films reveal distinct emission peaks due to f-f transitions. Luminescence properties of doped semiconductors are characterized by the presence of multi-centers, surface effects, and fast nonradiative decay processes in nanostructured sol-gel ceramic matrix. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：478 / 481

页数：4

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