Structure-property correlations in Ce-doped garnet phosphors for use in solid state lighting

被引：260

作者：

Wu, Jennifer L.

Gundiah, Gautam

Cheetham, A. K. ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Mat Res Lab, Mitsubishi Chem Ctr Adv Mat, Santa Barbara, CA 93106 USA

[2] Hewlett Packard Corp, Corvallis, OR 97330 USA

来源：

CHEMICAL PHYSICS LETTERS | 2007年 / 441卷 / 4-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/j.cplett.2007.05.023

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：

The discovery of inorganic phosphors that can be excited by GaN light emitting diodes in the wavelength range 380-460 nm is essential for improving the efficiency and light quality of solid state lighting devices. Garnets doped with Ce3+ are of particular interest for this application. We have studied the luminescence of Ce3+ in garnet phosphors and established a relationship between the excitation/emission wavelengths and the deviation from cubic symmetry around the rare-earth ion. Data are presented for both known yttrium aluminum and yttrium gallium garnet systems, as well as newly synthesized inverse garnets of the general formula Mg3Y2-yGdy-Ge3-zSizO12:Ce (0 <= y <= 2, z = 0, 1). (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：250 / 254

页数：5

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