The plasma display panels(PDPs) are regarded as a medium of large-format panel display.The performance and lifetime of a PDP is strongly related to the nature of phosphor used in it.The working of PDPs is realized by a conversion of vacuum ultraviolet(VUV) to visible light.Therefore

it is important for plasma display panel to improve the properties of the phosphors.Nowadays

the red emitting phosphors(Y

Gd)BO

3

:Eu

3+

for plasma display panels has a poor color purity and the first important thing is searching for a new phosphor with high color quality.In this work

(Y

Gd)(P

V)O

4

:Eu phosphors was prepared by the conventional solid state reaction method at 1000~1300℃.The structure of prepared sample was checked by X-ray diffraction using Cu-Kα(λ=0.154 nm) radiation at room temperature.The XRD data indicated that the sample is tetragonal

body-centered structure and space group is

I

4

1

/amd.Spectroscopic properties of the samples were studied in the VUV/UV range.The variation of the luminescent intensity with Eu

3+

mol fraction was investigated and the sample with 0.07 Eu

3+

has the highest luminous intensity.The emission spectrum of(Y

Gd)(P

V)O

4

:Eu

3+

is composed of several bonds

respectively

centered at 593

611

619

651

676.5

693.5

708.5

713.5 nm.The emission spectrum was dominated by the red peaks at 619 nm due to the electric dipole transition

5

D

0

→

7

F

2

which indicates that Eu

3+

occupies a site lacking inversion symmetry.The orange peak at 593 nm was the magnetic dipole transition

5

D

0

→

7

F

1

.The excitation spectrum of(Y

Gd)-(P

V)O

4

:Eu

3+

in the VUV range can be divided into two regions

one band centered at 156 nm may be assigned to the absorption of the host

another band centered at 250 nm was the charge transfer transition of Eu

3+

-O

2-

.By comparing the spectrum of(Y

Gd)(P

V)O

4

:Eu

3+

with that of(Y

Gd)BO

3

:Eu

3+

(Y

Gd)-(P

V)O

4

:Eu

3+

offers a better chromaticity than that of(Y

Gd)BO

3

:Eu

3+

.