Structure and Luminescence of cubic boron nitride micropowder with neodymium ions

被引：2
|
作者：
Leonchik, S. V. [1 ]
Karotki, A. V. [1 ]
Parshutich, S. F. [1 ]
Pysk, A. V. [1 ]
机构：
[1] Natl Acad Sci Belarus, Sci Pract Mat Res Ctr, Minsk 220072, BELARUS
来源：
JOURNAL OF APPLIED SPECTROSCOPY | 2012年 / 79卷 / 05期
关键词：
cubic boron nitride; micropowder; x-ray diffraction analysis; luminescence; neodymium; EXCITATION; GROWTH; EU; PHOTOLUMINESCENCE; TEMPERATURE; SPECTRA; TB;
D O I：
10.1007/s10812-012-9665-4
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
A neodymium-containing cubic boron nitride (cBN:Nd) micropowder was synthesized at high temperatures (1800-2000 K) and pressures (3.5-4 GPa) from a batch mixture of hexagonal boron nitride (hBN), a catalyst (Li3N), and NdF3 micropowder. Lattice constants of the cBN:Nd micropowder and a cBN standard micropowder (synthesized without adding NdF3) that were determined by x-ray diffraction were about 3.615 for both micropowders. Energy-dispersive x-ray spectral microanalysis showed that the cBN:Nd grain surface was covered with microinclusions and thin films of Nd-containing compounds. Luminescence spectrum measurements confirmed the presence of Nd3+ ions in the cBN:Nd micropowder. The Nd3+ emission in the spectral regions 1.2-1.1 and 1.50-1.35 eV was attributed to F-4(3/2) -> I-4(11/2) and F-4(3/2)-> I-4(9/2) optical transitions, respectively.
引用
收藏
页码：744 / 748
页数：5
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