Home
Resources
Publications
Energy transfer and color tunable emission in Tb 3+,Eu 3+ co-doped Sr 3 LaNa(PO 4) 3 F phosphors

Energy transfer and color tunable emission in Tb 3+,Eu 3+ co-doped Sr 3 LaNa(PO 4) 3 F phosphors

Shuo Li, Ning Guo, Qimeng Liang, Yu Ding, Huitao Zhou, Ruizhuo Ouyang, Wei Lü

Spectrochim Acta A Mol Biomol Spectrosc. 2018 Feb 5;190:246-252.

PMID: 28938168

Abstract:

A group of color tunable Sr3LaNa(PO4)3F:Tb3+,Eu3+ phosphors were prepared by conventional high temperature solid state method. The phase structures, luminescence properties, fluorescence lifetimes and energy transfer were investigated in detail. Under 369nm excitation, owing to efficient energy transfer of Tb3+→Eu3+, the emission spectra both have green emission of Tb3+ and red emission of Eu3+. An efficient energy transfer occur in Tb3+, Eu3+ co-doped Sr3LaNa(PO4)3F phosphors. The most possible mechanism of energy transfer is dipole-dipole interaction by Dexter's theoretical model. The energy transfer of Tb3+ and Eu3+ was confirmed by the variations of emission and excitation spectra and Tb3+/Eu3+ decay lifetimes in Sr3LaNa(PO4)3F:Tb3+,Eu3+. The color tone can tuned from yellowish-green through yellow and eventually to reddish-orange with fixed Tb3+ content by changing Eu3+ concentrations. The results show that the prepared Tb3+, Eu3+ co-doped color tunable Sr3LaNa(PO4)3F phosphor can be used for white LED.

Chemicals Related in the Paper:

Catalog Number	Product Name	CAS Number	Price
AP1356154921-B	17α-Hydroxyprogesterone-2,3,4-13C3	1356154-92-1	Price
AP158962926	3,4-Ethylenedithiothiophene	158962-92-6	Price
AP57103205	3,6-Dibromo-9-phenylcarbazole	57103-20-5	Price
IAR42410451	(±)-Gallocatechin-2,3,4-13C3		Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: