Sol-Gel Preparation and Phase Transition of RE Orthoborates

稀土学报(英文版), 2001, 19(2): 138-141.

张巍巍 ^1, , 张慰萍 ^2, , 张运生 ^3, , 尹民 ^4, , 楼立人 ^5, , 夏上达 ^6,

1.Structure Research Laboratory, University of Science and Technology of China, Chinese Academy of Sciences;Department of Physics, University of Science and Technology of China,

2.Department of Physics, University of Science and Technology of China;State Key Laboratory of Rare Earth Materials Chemistry and Application

3.Structure Research Laboratory, University of Science and Technology of China, Chinese Academy of Sciences,

4.Department of Physics, University of Science and Technology of China;Structure Research Laboratory, University of Science and Technology of China, Chinese Academy of Sciences,

5.Department of Physics, University of Science and Technology of China,

6.Department of Physics, University of Science and Technology of China,

基金项目: 国家自然科学基金(19874058)

Sol-Gel Preparation and Phase Transition of RE Orthoborates

The rare earth borate YBO3 synthesized by sol-gel technique was found to be in two phases. However, the low-symmetry form of YBO3 which was found also in some other rare earth (Sm, Eu, Gd) borates has a much different dependence on the preparing conditions. The photoluminescent spectra indicate that there are more than two sites for Eu3＋ in the sol-gel prepared polycrystalline YBO3∶Eu with low-symmetry.

参考文献

[1]	Holsa J .Luminescence of Eu3+ ion as a structural probe in high-temperature phase-transformations in lutetium orthoborates[J].Inorganica Chimica Acta,1987,139:257-259.
[2]	Newnham R E;REDMAN M J;SANTORO R P .Crystal structure of yttrium and other rare-earth borates[J].Journal of the American Ceramic Society,1963,46:253-256.
[3]	Bradley W F;GRAF D L;ROTH R S .The vaterite-type ABO3 rare-earth borates[J].Acta Crystallographica,1966,20:283-287.
[4]	Chadeyron G.;Mahiou R.;Arbus A.;Cousseins JC.;Elghozzi M. .REVISED STRUCTURE OF THE ORTHOBORATE YBO3[J].International Journal of Quantum Chemistry,1997(2):261-266.
[5]	Ren M;LIN J H;DONG Y et al.Structure and phase transition of GdBO3[J].CHEMISTRY OF MATERIALS,1999,11:1576-1580.
[6]	Corbel G;LEBLANC M;ANTIC-FIDANCEV E et al.Luminescence analysis and subsequent revision of the crystal structure of triclinic L-EuBO3[J].Journal of Alloys and Compounds,1999,287:71-78.
[7]	张巍巍,谢平波,张慰萍,尹民,荆隆,吕少哲,楼立人,夏上达.稀土正硼酸盐Ln{1-xBO3：Eux（Ln=Y,Gd）的结构与发光特性[J].无机材料学报,2001(01):9-16.
[8]	Zhang W W;XIE P B;ZHANG W P.Site selective luminescence and phase transition of a PDP phosphor LT-GdBO3:Eu[J].Journal of Inorganic Materials,2001(03)

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网

Sol-Gel Preparation and Phase Transition of RE Orthoborates

参考文献