| Luminescent Properties of Europium-Doped Lanthanum Silicon Nitride Phosphor |
| Zoltan Lences, Monika Hrabalova, Adriana Czimerova, Pavol Sajgalik, You Zhou1, Kiyoshi Hirao1 |
Institute of Inorganic Chemistry, Slovak Academy of Sciences
1National Institute of Advanced Industrial Science & Technology (AIST) |
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| ABSTRACT |
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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). |
| Key words:
Lanthanum silicon nitride, Nitridation, Luminescence, Phosphor, Europium |
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