Photoluminescence properties of green-emitting Eu²⁺-activated Ba₃Si₆O₁₂N₂ oxynitride phosphor for white LED applications

Eu²⁺-activated Ba₃Si₆O₁₂N₂ green-emitting phosphors were synthesized by a solid-state reaction method. X-ray diffraction patterns showed that the synthesized phosphor sintered at 1200°C for 12h was a Ba₃Si₆O₁₂N₂ pure phase. The synthesized phosphors were excited in UV to blue light. The emission spe...

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Bibliographic Details
Published inMaterials letters Vol. 65; no. 23-24; pp. 3399 - 3401
Main Authors Song, Y.H, Choi, T.Y, Senthil, K, Masaki, T, Yoon, D.H
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.2011
Subjects
ammonium chloride
Band spectra
blue light
Emission
Excitation spectra
Flux
Light-emitting diodes
Oxynitrides
Phosphors
X-ray diffraction
X-rays
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Summary:Eu²⁺-activated Ba₃Si₆O₁₂N₂ green-emitting phosphors were synthesized by a solid-state reaction method. X-ray diffraction patterns showed that the synthesized phosphor sintered at 1200°C for 12h was a Ba₃Si₆O₁₂N₂ pure phase. The synthesized phosphors were excited in UV to blue light. The emission spectra showed a broad green emission band when excited with a light at 465nm. The highest emission intensity was observed at a Eu²⁺ concentration of 0.25mol and the NH₄Cl concentration of the optimized flux was found to be 9wt.%. The obtained green-emitting Ba₃Si₆O₁₂N₂:Eu²⁺ phosphors could be applied to white LED applications.
Bibliography:http://dx.doi.org/10.1016/j.matlet.2011.07.060
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2011.07.060