Health & Environmental Research Online (HERO)


Print Feedback Export to File
8478605 
Journal Article 
Photoluminescence characteristics of Sm3+ doped Ba3La(PO4)(3) as new orange-red emitting phosphors 
Yu, R; Noh, HMi; Moon, BKee; Choi, BC; Jeong, JH; Lee, HoS; Jang, K; Yi, SSoo; , 
2014 
Yes 
Journal of Luminescence
ISSN: 0022-2313 
ELSEVIER SCIENCE BV 
AMSTERDAM 
717-722 
WOS:000330821200116 
A series of orange-red emitting Ba3La(PO4)(3):xSm(3+) (0.01 x 0.30) phosphors was synthesized by the convenient solid-state reaction. X-ray diffraction and photoluminescence spectra were utilized to characterize the structure and luminescence properties of the as-synthesized phosphors. The emission spectra of the Ba3La(PO4)(3):Sm3+ phosphors consisted of some sharp emission peaks of Sm3+ ions centered at 563 nm, 600 nm, 647 nm, 710 nm. The strongest one is located at 600 nm due to (4)G(5/2)-H-6(7/2) transition of Sm3+, generating bright orange-red light. The optimum dopant concentration of Sm3+ ions in Ba3La(PO4):xSm(3+) is around 5 mol% and the critical transfer distance of Sm3+ is calculated as 22 A. The CIE chromaticity coordinates of the Ba3La(PO4)3:0.05Sm(3+) phosphors was is located in the orange reddish region. The Ba3La(PO4)(3):Sm3+ phosphors may be potentially used as red phosphors for white light-emitting diodes. (C) 2013 Elsevier B.V. All rights reserved.