Generation of green, red and white light from rare-earth doped Ga2O3 nanoparticles

被引：90

作者：

Sinha, Godhuli ^{[1
]}

Patra, Amitava ^{[1
]}

机构：

[1] Indian Assoc Cultivat Sci, Dept Mat Sci, Kolkata 700032, India

来源：

CHEMICAL PHYSICS LETTERS | 2009年 / 473卷 / 1-3期

关键词：

NANOCRYSTALS; LUMINESCENCE; FILMS; BLUE;

D O I：

10.1016/j.cplett.2009.03.074

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：

We report the solvothermal synthesis of pure and rare-earth ions doped Ga2O3 nanoparticles for blue (Ga2O3), green (Tb3+) and red (Eu3+) emission. Bright white emission can be produced by tuning dopant ions. The CIE co-ordinate values of the white light are 0.32, 0.36, which are well within the white region of the chromaticity diagram. Steady state and time-resolved spectroscopic studies were performed to understand the mechanism. Analysis suggests that semiconducting Ga2O3 nanoparticles sensitize the rare-earth activator, which leads to an energy transfer system that produces a bright white light. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：151 / 154

页数：4

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