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- Title
Effect of NHCl flux used to synthesize double perovskite BaLaMgSbO:Eu phosphor by solid-state reaction method.
- Authors
Liu, Quan; Zhang, Qi; Li, Xibing; Wang, Lixi; Jiang, Haibin; Zhang, Qitu
- Abstract
Eu ions activated BaLaMgSbO phosphors were successfully synthesized by the solid-state reaction method using NHCl as the flux. The influence of NHCl, structure, morphology and photoluminescent properties of as-prepared powders were investigated in detail. Long-range ordering of B-site cations existed in this double perovskite. With increasing the amount of NHCl, the morphology of phosphors changed from regular polyhedron shape to globoid shape. Broad and strong A mode existed in the Raman spectrum. The absorption intensity of charge transfer band was higher than the intensity of characteristic f- f absorption of Eu. The luminescence intensity of D-F (electric dipole transition) was much higher than that of D-F (magnetic dipole transition). The optimum adding amount of NHCl was 10.0 wt% while excited by the CTB and the phosphor emitted intense red light. The CIE chromaticity coordinates indicated that the phosphors showed good color purity. Therefore the synthesized phosphor is a potential light conversion red material for light emitting diode.
- Subjects
AMMONIUM chloride; PEROVSKITE synthesis; PHOSPHORS; SOLID-state phase transformations; FLUX (Energy); RAMAN spectra
- Publication
Journal of Materials Science: Materials in Electronics, 2017, Vol 28, Issue 4, p3373
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-016-5931-1