PHOSPHOR AND LIGHT-EMITTING APPARATUS

A phosphor comprises a crystal phase with a chemical composition (Lu, Ce, M)γO. M denotes one or more elements selected from the group consisting of Y, La, Sc, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb. β contains Si, which constitutes 90% or more by mole of β. γ contains N, which constitutes 9...

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Bibliographic Details
Main Authors NAGAO, Nobuaki, INADA, Yasuhisa, NITTA, Mitsuru
Format Patent
LanguageEnglish
French
German
Published 12.08.2020
Subjects
ADHESIVES
BASIC ELECTRIC ELEMENTS
CHEMISTRY
DYES
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
SEMICONDUCTOR DEVICES
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Summary:A phosphor comprises a crystal phase with a chemical composition (Lu, Ce, M)γO. M denotes one or more elements selected from the group consisting of Y, La, Sc, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb. β contains Si, which constitutes 90% or more by mole of β. γ contains N, which constitutes 90% or more by mole of γ. The variables x, y, z, p, and q satisfy 5.5 ≤ x ≤ 6.5, 10.5 ≤ y ≤ 11.5, 19.5 ≤ z ≤ 20.5, 0 < p < 0.03, and 0 ≤ q ≤ 0.5.
Bibliography:Application Number: EP20180211103