US 2015/0146408 A1 · Phosphor, Method for Producing Same, Light Emitting Device, and Image Display Device

Abstract

To provide a phosphor being chemically-thermally stable and having high luminous intensity if combined with LED of not exceeding 470 nm. A phosphor of the present invention includes: inorganic compound including: a crystal represented by Li1Ba2Al1Si7N12; a crystal represented by (Li, A)3(D, E)8X12; and an inorganic crystal having the same crystal structure as the crystal represented by Li1Ba2Al1Si7N12; and a solid-solution crystal thereof, which contains Li, A, D, E, and X elements (A represents at least one selected from Mg, Ca, Sr, Ba, Sc, Y and La; D represents at least one selected from Si, Ge, Sn, Ti, Zr and Hf; E represents at least one selected from B, Al, Ga and In; and X represents at least one selected from O, N and F), wherein M element (M represents at least one selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy and Yb) is solid-solved into each.

Claims57

Dependent claims

A phosphor comprising:

an inorganic compound comprising:
a crystal represented by Li1Ba2Al1Si7N12,
an inorganic crystal having a same crystal structure as a crystal structure of a crystal represented by Li1Ba2Al1Si7N12, or
a solid solution crystal of these crystals, which comprises at least a Li element, an A element, a D element, an E element, and an X element (here, A is one or two or more kinds of elements selected from a group consisting of Mg, Ca, Sr, Ba, Sc, Y, and La;
D is one or two or more kinds of elements selected from a group consisting of Si, Ge, Sn, Ti, Zr, and Hf;
E is one or two or more kinds of elements selected from a group consisting of B, Al, Ga, and In;
X is one or two or more kinds of elements selected from a group consisting of O, N, and F), into which an M element is solid-solved (here, M is one or two or more kinds of elements selected from a group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, and Yb).

4 more elements

Dependencies are inferred from the claim text.

Phosphor, Method for Producing Same, Light Emitting Device, and Image Display Device

Life of this patent

Phosphor, Method for Producing Same, Light Emitting Device, and Image Display Device

Life of this patent

Abstract

Claims57