Broadband Yellowish-Green Emitting Ba4Gd3Na3(PO4)6F2:Eu(2+) Phosphor: Structure Refinement, Energy Transfer, and Thermal Stability

Xiaopeng Fu; Wei Lü; Mengmeng Jiao; Hongpeng You

doi:10.1021/acs.inorgchem.6b00648

Broadband Yellowish-Green Emitting Ba4Gd3Na3(PO4)6F2:Eu(2+) Phosphor: Structure Refinement, Energy Transfer, and Thermal Stability

Inorg Chem. 2016 Jun 20;55(12):6107-13. doi: 10.1021/acs.inorgchem.6b00648. Epub 2016 Jun 1.

Authors

Xiaopeng Fu^{1

2}, Wei Lü¹, Mengmeng Jiao^{1

3}, Hongpeng You¹

Affiliations

¹ State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Science , Changchun 130022, P. R. China.
² College of Chemical Engineering, Northeast Dianli University , Jilin 132012, P. R. China.
³ University of the Chinese Academy of Science , Beijing 100049, P. R. China.

PMID: 27249557
DOI: 10.1021/acs.inorgchem.6b00648

Abstract

A series of Ba4Gd3Na3(PO4)6F2:Eu(2+) phosphors with a broad emitting band have been synthesized by a traditional solid state reaction. The crystal structural and photoluminescence properties of Ba4Gd3Na3(PO4)6F2:Eu(2+) are investigated. The different crystallographic sites of Eu(2+) in Ba4Gd3Na3(PO4)6F2:Eu(2+) phosphors have been verified by means of their photoluminescence (PL) properties and decay times. Energy transfer between Eu(2+) ions, analyzed by excitation, emission, and PL decay behavior, has been indicated to be a dipole-dipole mechanism. Moreover, the luminescence quantum yield as well as the thermal stability of the Ba4Gd3Na3(PO4)6F2:Eu(2+) phosphor have been investigated systematically. The as-prepared Ba4Gd3Na3(PO4)6F2:Eu(2+) phosphor can act as a promising candidate for n-UV convertible white LEDs.