Production of phosphor (YAG:Tb) fine particles by hydrothermal synthesis in supercritical water

被引：138

作者：

Hakuta, Y

Seino, K

Ura, H

Adschiri, T

Takizawa, H

Arai, K ^{[1
]}

机构：

[1] Tohoku Univ, Dept Chem Engn, Sendai, Miyagi 9808579, Japan

[2] Tohoku Univ, Dept Chem Mat, Sendai, Miyagi 9808579, Japan

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1999年 / 9卷 / 10期

关键词：

D O I：

10.1039/a903074c

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：

Rapid and continuous production of phosphor (YAG: Tb) fine particles by hydrothermal synthesis in supercritical water was studied. At temperatures higher than the critical temperature of water, continuous and rapid (<60 s) production of YAG: Tb fine particles was achieved. Emission spectra obtained by UV excitation of the particles were in agreement with the typical spectral pattern of YAG: Tb. Single phase YAG: Tb was produced by using stoichiometric mixtures of metal salts [Al(NO3)(3), Y(NO3)(3), and TbCl3] as aqueous solutions with an alkali molar ratio {[OH-]/([NO3-]+[Cl-])} of 1 and a rapid heating method. No additional thermal treatment was necessary to obtain crystalline products.

引用

页码：2671 / 2674

页数：4

共 11 条

[1] RAPID AND CONTINUOUS HYDROTHERMAL CRYSTALLIZATION OF METAL-OXIDE PARTICLES IN SUPERCRITICAL WATER [J].