Microwave assisted synthesis together with heat-treatment at a high temperature were employed to prepare the phosphor of terbium-aluminium garnet doped by Ce

3+

(TAG:Ce).The crystal form

particle topography and the photoluminescence properties of the powder were characterized by XRD

SEM and fluorescence spectrophotometer.SEM results show that the particles of the prepared samples are clear and smooth.Most particles have the size of less than 2 m.The powder has slightly agglomeration.The excitation spectrum consists of two peaks with the highest intensity at 467 nm and the second at 330 nm

respectively

all corresponding to Ce

3+

4f-5d absorption.The third peak is at 375 nm

which corresponds to

7

F

6

5

D

3

absorption of Tb

3+

.Ce

3+

5d-4f transition is also observed clearly

the highest emission peak is at 550 nm.The reaction pathway has been analyzed

implying that the tracer diffusion coefficient of aluminum is bigger than that of terbium in Tb

2

O

3

-Al

2

O

3

system.Compared with the traditional high-temperature solid-state synthesis

this route employed in this investigation has the advantages of easier synthesizing

energy saving and environmental protecting.