green phosphor and device using the same

1. A green phosphor represented by the formula:

A(Zn 1−x Mn x )Al 10 O 17

wherein A is Ca, Ba or Sr and x is a number satisfying 0.02≦x≦0.14.

2. A green phosphor according to claim 1 , in which the green phosphor contains a host material and a luminescence center, the host material being a β alumina structure.

3. A green phosphor according to claim 1 , which is capable of producing a green fluorescence by applied vacuum ultraviolet radiation.

4. A green phosphor according to claim 1 , which is represented by the formula: (Ba 1−y Sr y )(Zn 1−x Mn x )Al 10 O 17 (0.02≦x≦0.14, 0≦y≦1).

5. A gas discharge device using a green phosphor as set forth in claim 1 .

6. A display device using a green phosphor as set forth in claim 1 .