Efficient Sensitization of Eu3+ Emission by Tb3+ in Ba3La(PO4)3 under VUV-UV Excitation: Energy Transfer and Tunable Emission

被引：113

作者：

Zhang, Caihua ^{[1
,2
]}

Liang, Hongbin ^{[1
]}

Zhang, Su ^{[1
]}

Liu, Chunmeng ^{[1
]}

Hou, Dejian ^{[1
]}

Zhou, Lei ^{[1
]}

Zhang, Guobin ^{[3
]}

Shi, Junyan ^{[3
]}

机构：

[1] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, MOE Lab Bioinorgan & Synthet Chem, KLGHEI Environm & Energy Chem,Sch Chem & Chem Eng, Guangzhou 510275, Guangdong, Peoples R China

[2] Pingxiang Coll, Dept Chem Engn, Pingxiang 337055, Peoples R China

[3] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2012年 / 116卷 / 30期

基金：

中国国家自然科学基金;

关键词：

LUMINESCENT PROPERTIES; PHOTOLUMINESCENCE; PHOSPHORS; IONS; GD3+; LN; GREEN; CE3+; LA;

D O I：

10.1021/jp304717z

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：

The work presents the VUV-UV vis photoluminescence of Ba3La(PO4)(3):Ln(3+) (Ln = Tb, Eu) prepared by a high. temperature solid-state reaction route. The excitation and emission spectra, the fluorescence decays, and the time-resolved emission spectra were measured and discussed in detail. The results reveal that Tb3+ can efficiently transfer excitation energy to Eu3+ via its 5d and 4f states and therefore sensitizes Eu3+ emission under VUV-UV excitation, resulting in tunable emission in a large color gamut.

引用

页码：15932 / 15937

页数：6

共 30 条

[1] STRUCTURAL REFINEMENTS OF EULYTITE-TYPE CA3BI(PO4)3 AND BA3LA(PO4)3 [J].