Green phosphor and device using the same
View Patent ↗A green phosphor having a magnetoplumbite-type crystal structure, which contains at least Mn, La and Tb, which contains at least Tb and La but does not contain Ce or which contains at least Mn, La and Zn. The green phosphor of the present invention can be used as phosphor capable of being excited by vacuum ultraviolet radiation.
1. A green phosphor having a magnetoplumbite-type crystal structure, which contains at least Mn, La and Zn, wherein the green phosphor is excitable by vacuum ultraviolet radiation and is presented by the formula:
(La 1−x Tb x ) y (Mg 1−a−b Mn a Zn b )Al z O 1.5(y+z)+1
wherein 0≦x≦0.5, 0.8≦y≦1.2, 0<a+b≦1, 8≦z≦30.
2. A gas discharge device using a green phosphor having a magnetoplumbite-type crystal structure, which contains at least Mn, La and Tb.
3. A display device using a green phosphor having a magnetoplumbite-type crystal structure, which contains at least Mn, La and Tb.
4. A gas discharge device using a green phosphor having a magnetoplumbite-type crystal structure, which contains at least Tb and La but does not contain Ce.
5. A display device using a green phosphor having a magnetoplumbite-type crystal structure, which contains at least Tb and La but does not contain Ce.
6. A display device using a green phosphor having a magnetoplumbite-type crystal structure, which contains at least Mn, La and Zn.
7. A green phosphor having a magnetoplumbite-type crystal structure, comprising a host material of LaMgAl 11 O 19 and a luminescence center element of at least Mn and Zn, wherein the green phosphor has a peak of an emission spectrum in the green color to excitation by vacuum ultraviolet radiation and is for use in a plasma display panel.
8. A plasma display panel comprising a green phosphor having a magnetoplumbite-type crystal structure, comprising a host material of LaMgAl 11 O 19 and a luminescence center element of at least Mn and Tb, wherein the green phosphor has a peak of an emission spectrum in the green color to excitation by vacuum ultraviolet radiation.
9. A plasma display panel comprising a green phosphor having a magnetoplumbite-type crystal structure, comprising a host material of LaMgAl 11 O 19 and a luminescence center element of at least Tb but does not contain Ce, wherein the green phosphor has a peak of an emission spectrum in the preen color to excitation by vacuum ultraviolet radiation.
10. A plasma display panel comprising a green phosphor as in claim 7 .