Phosphor and light emitting device
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsTakeshi ABE, Shozo OSHIO
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Abstract
A phosphor is a phosphor composed by containing Ce3+ as an emission center in a matrix garnet compound having a garnet structure. Then, in the matrix garnet compound, a part of Ca that composes a crystal of Lu2CaMg2(SiO4)3 is replaced by Mg. Moreover, a light emitting device includes the above-mentioned phosphor. In this way, it is possible to provide a garnet phosphor in which temperature quenching is reduced without largely shifting the light emission peak wavelength from that of a Lu2CaMg2(SiO4)3:Ce3+ phosphor, and to provide a light emitting device using the garnet phosphor.
Claims4
A phosphor comprising:
- a matrix garnet compound having a garnet structure;
- and Ce3+ as an emission center, which is contained in the matrix garnet compound,
- wherein, in the matrix garnet compound, a part of Ca that composes a crystal of Lu2CaMg2(SiO4)3 is replaced by Mg.
Dependencies are inferred from the claim text.