Paper Title:
New Green Phosphor Ba3Si6O12N2:Eu for White LED: Crystal Structure and Optical Properties
  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.

  Info
Periodical
Edited by
Katsutoshi Komeya, Yi-Bing Cheng, Junichi Tatami and Mamoru Mitomo
Pages
11-14
DOI
10.4028/www.scientific.net/KEM.403.11
Citation
M. Mikami, S. Shimooka, K. Uheda, H. Imura, N. Kijima, "New Green Phosphor Ba3Si6O12N2:Eu for White LED: Crystal Structure and Optical Properties ", Key Engineering Materials, Vol. 403, pp. 11-14, 2009
Online since
December 2008
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$32.00
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