Eu < 3 + >-doped red fluorescent powder and preparation method thereof

The invention relates to a method for preparing red fluorescent powder Bi2MoO6: Eu < 3 + > by adopting a high-temperature solid-phase method, and belongs to the technical field of fluorescent powder. The problems of weak red light emission and low color rendering index in a YAG: Ce combined wh...

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Bibliographic Details
Main Authors KONG LI, SUN HAO, LUAN GUOYAN
Format Patent
LanguageChinese
English
Published 26.04.2022
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 method for preparing red fluorescent powder Bi2MoO6: Eu < 3 + > by adopting a high-temperature solid-phase method, and belongs to the technical field of fluorescent powder. The problems of weak red light emission and low color rendering index in a YAG: Ce combined white light LED excited by a blue light LED are solved. According to the Eu < 3 + >-doped red fluorescent powder and the preparation method thereof, the chemical formula of the Eu < 3 + >-doped red fluorescent powder is Bi2 (1-x) MoO6: 2xEu < 3 + >, and 2x is more than or equal to 1at% and less than or equal to 20at%. The red fluorescent powder can emit red light of which the main peak is 613nm under the excitation of blue light of 465nm, and is suitable for the red fluorescent powder of which the blue light excites a white light LED (Light Emitting Diode). The preparation process comprises the following steps: firstly, weighing the raw materials according to the stoichiometric ratio, carrying out component grinding in a c
Bibliography:Application Number: CN202111618745