Enhanced fluorescence of Eu3+ induced by energy transfer from nanosized SnO2 crystals in glass

被引：172

作者：

Nogami, M ^{[1
]}

Enomoto, T ^{[1
]}

Hayakawa, T ^{[1
]}

机构：

[1] Nagoya Inst Technol, Dept Mat Sci & Engn, Showa Ku, Nagoya, Aichi 4668555, Japan

来源：

JOURNAL OF LUMINESCENCE | 2002年 / 97卷 / 3-4期

关键词：

fluorescence; nanocrystal; quantum confinement; Eu3+ ion; SnO2;

D O I：

10.1016/S0022-2313(02)00217-X

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Eu3+-doped SnO2-SiO2 glasses were prepared using a sol-gel method, where nanosized SnO2 crystals of similar to8 nm in diameter were precipitated to dope the Eu3+ ions. When excited at the energy corresponding to the absorption edge of the SnO2 nanocrystals, the SnO2-doped glass exhibits fluorescence intensities of the Eu3+ ions higher than 150 times that of the glass without nanocrystals. The energies, which are absorbed by the quantum-dot effect in the nanosized crystals, are efficiently transferred into the Eu3+ ions to cause the high emission. (C) 2002 Elsevier Science B.V. All rights reserved.

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页码：147 / 152

页数：6

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