摘要
Luminescent terbium doped yttrium aluminum garnet (YAG∶Tb) powders were prepared using yttrium and aluminum oxide precursor particles produced by combustion process with glycine. Heat treatment of the resulting precursor powders at 950℃or 1450℃for 2h, yielded pure YAG particles. The morphology of YAG∶Yb phosphor after sintering at 1450℃appeared to be spherical or elliptical and the grain size of the phosphor was in the range of 0.6 to 1.4μm. From the photoluminescence spectra, transitions 5D4 7FJ corresponding to Tb3+in YAG matrices were identified. The prominent transition 5D4 7F6 emission for YAG∶0.05Tb phosphor after sintering at 1450℃was very significant to improve the chromaticity of YAG∶Tb phosphor.
Luminescent terbium doped yttrium aluminum garnet (YAG∶Tb) powders were prepared using yttrium and aluminum oxide precursor particles produced by combustion process with glycine. Heat treatment of the resulting precursor powders at 950℃or 1450℃for 2h, yielded pure YAG particles. The morphology of YAG∶Yb phosphor after sintering at 1450℃appeared to be spherical or elliptical and the grain size of the phosphor was in the range of 0.6 to 1.4μm. From the photoluminescence spectra, transitions 5D4 7FJ corresponding to Tb3+in YAG matrices were identified. The prominent transition 5D4 7F6 emission for YAG∶0.05Tb phosphor after sintering at 1450℃was very significant to improve the chromaticity of YAG∶Tb phosphor.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2002年第4期431-434,共4页
Chinese Journal of Inorganic Chemistry
基金
河北省自然科学基金资助项目(No.299193)。
