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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.122  No.1421 (January) (2014)  >  pp.9-11

Journal of the Ceramic Society of Japan
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Fabrication of Eu-doped SrSi2O2N2 phosphor by a solid-state reaction using a new source of Si2N2O powder

Hidetoshi MIYAZAKI1), Shigeki YOSHIDA1), Hisao SUZUKI2), Toshitaka OTA3)
1) Interdisciplinary Graduate School of Science and Engineering, Shimane University 2) Graduate School of Science and Technology, Shizuoka University 3) Ceramic Research Laboratory, Nagoya Institute of Technology

Si2N2O powder was synthesized by the direct reaction of silicon and silicon dioxide in an N2 atmosphere at 1450°C; the resulting Si2N2O powder was doped with Eu in a H2/N2 atmosphere at 1350°C. The Eu-doped SrSi2O2N2 powder showed a phosphorescence peak at approximately 530 nm with an excitation wavelength of 450 nm. Increasing the Eu content in the EuxSr1−xSi2O2N2 (x = 0–0.15) phosphor red-shifted the peak position. The Eu0.01Sr0.99Si2O2N2 phosphor showed high durability in water, and the emission intensity of the Eu0.01Sr0.99Si2O2N2 phosphor after soaking in water was 1.2 times higher than that of the phosphor before soaking in water.

SrSi2O2N2, Phosphor, Si2N2O, Solid-state reaction

Received: July 23, 2013
Accepted: September 13, 2013 , Published online: January 01, 2014
Copyright © 2014 The Ceramic Society of Japan



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