Premium
Synthesis, Structure, and Tunable Luminescence Properties of Novel Ba 3 NaLa ( PO 4 ) 3 F : Eu 2+ , Mn 2+ Phosphors
Author(s) -
Mi Ruiyu,
Zhao Chenglong,
Xia Zhiguo
Publication year - 2014
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.12818
Subject(s) - phosphor , luminescence , apatite , dopant , rietveld refinement , chemistry , analytical chemistry (journal) , phase (matter) , doping , crystallography , materials science , mineralogy , crystal structure , optoelectronics , chromatography , organic chemistry
A series of luminescent emission‐tunable phosphors Ba 3 NaLa ( PO 4 ) 3 F : Eu 2+ , Mn 2+ have been prepared by a high‐temperature solid‐state reaction. The Rietveld refinement analysis confirms that the obtained phosphors possess pure apatite crystalline phase and the sites' occupancy of dopant has been also discussed. Upon the excitation of 355 nm, the emission spectra of Ba 3 NaLa ( PO 4 ) 3 F : Eu 2+ , Mn 2+ consist of two broad bands assigned to 5 d –4 f transition of Eu 2+ and 4 T 1 ( 4 G )– 6 A 1 ( 6 S ) transitions of Mn 2+ , respectively. Energy transfer ( ET ) occurs in Eu 2+ , Mn 2+ codoped Ba 3 NaLa ( PO 4 ) 3 F host. On the basis of the thorough analysis and comparison upon their excitation, emission properties, and the decay behaviors, it is demonstrated that the ET mechanism between Eu 2+ and Mn 2+ is ascribed to the exchange interaction, and the tunable emission color in the novel apatite host can be realized.