The plasma display panel (PDP) was regarded as the most promising medium for the wall hanging high definition television (HDTV) because the large sized PDP could be made relatively easily. Moreover

it offers a fast response

a wide viewing angle

a lower energy consumption and other advantages. In PDPs

three primary color phosphors are excited by the vacuum ultraviolet radiation from inert gas plasma

which imposed a unique requirement on the phosphors. Green emitting phosphors was very important for plasma display panel because human eyes were sensitive to green color. ZnSiO

4

:Mn

2+

which was used in plasma display (panel) as a green emitter has a long decay time

has a decay time longer than 10 ms. Long decay time was not beneficial to (display.) Searching for new emitting phosphors with short decay time excited by VUV photon was a urgent thing. (Y

Gd)BO

3

:Tb powders were prepared by the conventional solid reaction method. The (structure) of the powders was checked by XRD. The emission spectrum of (Y

Gd)BO

3

:Tb excited by 147 nm dominated by 544 nm emission ascribed to

5

D

4

7

F

5

transition of Tb

3+

ions. VUV and UV excitation spectra of (Y

Gd)BO

3

:Tb were investigated. It was found that the host absorption was located at about 150 nm. The band centered at 150 nm of (Y

Gd)BO

3

:Tb is stronger than that of YBO

3

:Tb which indicated that Gd

3+

(enhanced) the host absorption. New peaks were present at about 276 nm in the excitation spectrum of (Y

Gd)-BO

3

:Tb and were assigned to the

8

S

7/2

6

I

J

transitions of the Gd

3+

this result indicates that there is an energy transfer between Gd

3+

ions and Tb

3+

ions. The fluorescence decay curve of (Y

Gd)BO

3

:Tb indicated that the lifetime of green luminescence (at 10% intensity) of (Y

Gd)BO

3

:Tb is about 8 ms. The afterglow time of (Y

Gd)BO

3

:Tb can meet the demand for display application.