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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Main Authors | , , |
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Format | Patent |
Language | English French German |
Published |
12.08.2020
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Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: EP20180211103 |