期刊
OPTICAL MATERIALS
卷 33, 期 2, 页码 170-175出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optmat.2010.10.004
关键词
Tellurite glass; Borate glass; Oxynitride phosphor; Dispersion; Refractive index
Ca-alpha-SiAlON:Eu(2+) is known to be a typical oxynitride phosphor for luminescent materials. We investigated the potential as white LEDs of various glasses into which Ca-alpha-SiAlON:Eu(2+) phosphor was dispersed. Borate and tellurite glasses were melted at 1200 C using a combinatorial melting system. Several glasses, 2R(2)O-50ZnO-48B(2)O(3) (mol%; R = Li, Na, K), 30Na(2)O-10ZnO-60TeO(2) and 20Na(2)O-30ZnO-50TeO(2), were dispersed homogeneously with SiAlON powders without degradation. The color generated by irradiation of blue LED at 450 nm depended on the concentration of SiAlON and the thickness of the glasses, resulting in nearly white light in some cases. (C) 2010 Elsevier B.V. All rights reserved.
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