Preparation of Cr-doped Y3Al5O12 phosphors by heterogeneous precipitation methods and their luminescent properties

被引：82

作者：

Matsubara, I

Paranthaman, M

Allison, SW

Cates, MR

Beshears, DL

Holcomb, DE

机构：

[1] Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA

[2] Oak Ridge Natl Lab, Engn Technol Div, Oak Ridge, TN 37831 USA

[3] Oak Ridge Natl Lab, Instrumentat & Controls Div, Oak Ridge, TN 37831 USA

来源：

MATERIALS RESEARCH BULLETIN | 2000年 / 35卷 / 02期

关键词：

optical materials; chemical synthesis; X-ray diffraction; luminescence;

D O I：

10.1016/S0025-5408(00)00202-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Chromium-doped Y3Al5O12 (YAG-Cr) phosphor powders were prepared by a heterogeneous precipitation method. Hydroxide precursor powders were precipitated from their respective metal sulfate solutions with urea. The formation of the YAG phosphors was investigated by means of XRD. Phase pure YAG-Cr was formed by heating the precursors at 1300 degrees C, which is more than 300 degrees C lower than that required for the conventional solid-state reaction method. The emission intensity of YAG-Cr phosphors increased with increasing firing temperature, and the intensities observed for phosphor powders were brighter than that of the commercial YAG-Cr phosphors. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：217 / 224

页数：8