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Luminescent Properties of Europium-Doped Lanthanum Silicon Nitride Phosphor

  • Lences, Zoltan (Institute of Inorganic Chemistry, Slovak Academy of Sciences) ;
  • Hrabalova, Monika (Institute of Inorganic Chemistry, Slovak Academy of Sciences) ;
  • Czimerova, Adriana (Institute of Inorganic Chemistry, Slovak Academy of Sciences) ;
  • Sajgalik, Pavol (Institute of Inorganic Chemistry, Slovak Academy of Sciences) ;
  • Zhou, You (National Institute of Advanced Industrial Science & Technology (AIST)) ;
  • Hirao, Kiyoshi (National Institute of Advanced Industrial Science & Technology (AIST))
  • Received : 2012.05.22
  • Accepted : 2012.07.02
  • Published : 2012.07.31

Abstract

Europium-doped $LaSi_3N_5$ phosphor was synthesized from LaSi/Si/$Si_3N_4/Eu_2O_3$ mixture by nitridation at $1390^{\circ}C$ and additional annealing at $1650^{\circ}C$ for 4 h. The phosphor shows emissions in the green light region with a maximum at 560 nm. With increasing europium content in the general formula $La_{1-z}Eu_zSi_3N_{5-z}O_{1.5z}$ from z = 0.01 to 0.06 there was a maximum emission for z = 0.04 followed by concentration quenching for the highest europium content (z = 0.06).

Keywords

References

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Cited by

  1. : Synthesis, Computed Electronic Structure, and Band Gaps vol.97, pp.8, 2014, https://doi.org/10.1111/jace.12968