Affiliation:
1. Science and Technology Research Center, Inc.
Abstract
A new oxynitride, Ba3Si6O12N2, has been synthesized. The crystal structure has been successfully determined by close collaboration between experiment and first-principles calculation. This compound doped with Eu exhibits intense green photoluminescence with high color purity under near-ultraviolet to blue light excitation; in particular, it has much less thermal quenching than (Ba,Sr,Eu)2SiO4. Thus (Ba,Eu)3Si6O12N2 appears promising green phosphor for white LED backlight for display. The atomic/electronic structure is discussed in comparison with Ba3Si6O9N4, which could not become efficient phosphor by doping Eu due to strong thermal quenching at room temperature.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference9 articles.
1. T. L. Barry : J. Electrochem. Soc. Vol. 115 (1968), p.1181.
2. N. Hirosaki et al., Appl. Phys. Lett. 86 (2005), p.211905.
3. K. Uheda et al., Electrochem. Solid State Lett. Vol. 9, (2006), p. H22.
4. R. Müller-Mach et al., phys. stat. sol. (a) Vol. 202 (2005), p.1727.
5. F. Stadler and W. Schnick, Z. Anorg. Allg. Chem. Vol. 632 (2006), p.949.
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