Site-selective spectroscopy and crystallographic sites of Eu3+ ions doped in Gd2BaZnO5

被引：17

作者：

Huang, Yanlin ^{[2
]}

Shi, Liang ^{[1
]}

Kim, Eun Sik ^{[1
]}

Seo, Hyo Jin ^{[1
]}

机构：

[1] Pukyong Natl Univ, Dept Phys, Pusan 608737, South Korea

[2] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2009年 / 105卷 / 01期

关键词：

OXIDES; LUMINESCENCE; EU2BAZNO5;

D O I：

10.1063/1.3056167

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The influence of the cationic sites on the luminescent properties of Eu3+ in Gd2BaZnO5 has been investigated by the site-selective laser excitation and emission spectroscopy along with luminescence decays. It has been revealed that the Eu3+ ions occupy two cationic sites. The Stark energy levels of Eu3+ at two different sites in Gd2BaZnO5 were assigned from selectively excited emission spectra at 10 K. The energy transfer between two crystallographic Eu3+ centers in Gd2BaZnO5 is detected and discussed. Excitation spectrum in the UV region and UV-excited emission spectrum were also performed, which indicate that an efficient energy transfers from the host and directly Gd3+ to Eu3+ ions in Gd2BaZnO5. c 2009 American Institute of Physics. [DOI: 10.1063/1.3056167]

引用

页数：5

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