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http://dx.doi.org/10.4191/kcers.2012.49.4.325

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))
Publication Information
Journal of the Korean Ceramic Society / v.49, no.4, 2012 , pp. 325-327 More about this Journal
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
Lanthanum silicon nitride; Nitridation; Luminescence; Phosphor; Europium;
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