Improving Blue Phosphor BAM:Eu for Fluorescent and LED Lighting

Gilles Wallez; Arnold Lacanilao; Valérie Buissette; Thierry Le Mercier; Léo Mazerolles; Bertrand Pavageau; Laurent Servant

doi:10.4028/www.scientific.net/KEM.617.145

Paper Titles

Comparative Study of Antibacterial Efficiency of M-TiO₂ (M = Ag, Cu) Thin Films Grown by CVD
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Effect of RE³⁺ Codopant on Afterglow Time of SrS:Eu²⁺,RE³⁺
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Electric Pulse Induced Resistive Switching in the Narrow Gap Mott Insulator GaMo₄S₈
p.135

Glass Structures and Linea/Nonlinear Optical Properties of Ag₂O-Doped TeO₂ Glasses
p.141

Improving Blue Phosphor BAM:Eu for Fluorescent and LED Lighting
p.145

Preparation of Red-Emitting Eu²⁺-Doped Barium Calcium Silicon Oxynitride by Solid-State Reaction and its Luminescence Properties
p.149

Thermal Stability of MAX Phases
p.153

Band-Gap Engineering Based on Ti@ZnO Nanocolloids: Tunable Optical Properties
p.161

Control of Shell Thickness of Hollow Silica-Alumina Composite Spheres and their Activity for Hydrolytic Dehydrogenation of Ammonia Borane
p.166

HomeKey Engineering MaterialsKey Engineering Materials Vol. 617Improving Blue Phosphor BAM:Eu for Fluorescent and...

Improving Blue Phosphor BAM:Eu for Fluorescent and LED Lighting

Abstract:

The effects of various fluoride fluxes on the crystallization of blue phosphor BaMgAl₁₀O₁₇:Eu²⁺ were characterized using a wide panel of experimental methods. LiF appeared as the most efficient, with a significant increase of the photoluminescence yield under excitation at 280 nm. Besides, the recrystallization resulted in a redistribution of the dopant among the three crystallographic sites, leading to a strong increase of the excitation in the near-UV domain. This allowed the emission to increase by 40 % under a 400 nm irradiation, typically of interest for possible LED-blue phosphor systems. At last, the shaping into hexagonal single crystals allowed both a reduction of the thermal degradation under air, and the discovery of a novel regeneration process at moderate temperature.

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Periodical:

Key Engineering Materials (Volume 617)

Pages:

145-148

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.617.145

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Online since:

June 2014

Authors:

Gilles Wallez*, Arnold Lacanilao, Valérie Buissette, Thierry Le Mercier, Léo Mazerolles, Bertrand Pavageau, Laurent Servant

Keywords:

Crystal Structure, Microstructure, Phosphor, Photoluminescence (PL)

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References

[1] S. Oshio, T. Matsuoka, S. Tanaka, H. Kobayashi, J. Electrochem. Soc. 145 (1998) 39033907.

Google Scholar

[2] G. Bizarri, B. Moine. J. Lumin. 115 (2005) 53-61.

Google Scholar

[3] J. Lambert, G. Wallez, M. Quarton, T. Le Mercier, W. van Beek, J. Lumin. 128 (2008) 366-372.

DOI: 10.1016/j.jlumin.2007.09.010

Google Scholar

[4] A. Lacanilao, G. Wallez, L. Mazerolles, V. Buissette, T. Le Mercier, F. Aurissergues, M.F. Trichet, N. Dupré, B. Pavageau, L. Servant, B. Viana, Mater. Res. Bull. 48 (2013) 2960-2968.

DOI: 10.1016/j.materresbull.2013.04.044

Google Scholar

[5] K.C. Mishra, M. Raukas, A. Ellens, K.H. Johnson, J. Lumin. 96 (2002) 95–105.

Google Scholar

[6] A. Lacanilao, G. Wallez, L. Mazerolles, P. Dubot, L. Binet, B. Pavageau, L. Servant, V. Buissette, T. Le Mercier, Solid State Ionics 253 (2013) 32-38.

DOI: 10.1016/j.ssi.2013.08.024

Google Scholar