Warm white fluorescent powder excited by ultraviolet LED

The invention relates to a warm white fluorescent powder excited by an ultraviolet LED. According to the fluorescent powder, InNbO4 serves as a host material, and the warm white fluorescent powder In1-x-y-zDyxTmyEuzNbO4 is obtained by simultaneously doping rare earth ions such as 0.01-0.05at.% of Dy...

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Bibliographic Details
Main Authors CAI GEMEI, FAN XING, JIN ZHANPENG, SU LIUMEI
Format Patent
LanguageChinese
English
Published 01.06.2016
Subjects
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Summary:The invention relates to a warm white fluorescent powder excited by an ultraviolet LED. According to the fluorescent powder, InNbO4 serves as a host material, and the warm white fluorescent powder In1-x-y-zDyxTmyEuzNbO4 is obtained by simultaneously doping rare earth ions such as 0.01-0.05at.% of Dy3+, 0.01-0.05at.% of Tm+3+ and 0-0.03at.% of Eu3+ into the In3+ position, wherein x ranges from 0.01 to 0.05, y ranges from 0.01 to 0.05, and z ranges from 0 to 0.03. The rare-earth-doped niobate-based warm white fluorescent powder for the LED has the advantages of being simple in preparing process, high in light-emitting intensity, adjustable in color, capable of achieving a warm color, short in fall time, good in stability and the like, and can be widely applied to the LED field.
Bibliography:Application Number: CN20161153343