In recent years

the synthesis of nanomaterials have received extremely interests of physicists

chemists and materialists in both fundamental and applied studies. As one of synthesis method of nanomate-rials

the synthesis by template is specially important

for example

more and more materials were produced by porous anodic aluminum oxide. In our recent work

wide range porous anodic aluminum oxide (AAO) film with highly ordered nanopore arrays was prepared by using a two-step anodization technique. The characterization of AAO template was achieved by scan electron microscope (SEM) and X-ray diffraction. In this work we made an attempt to introduce rare earth ion into AAO. Eu

3+

ion was introduced into the voids of porous anodic aluminum oxide film (AAO:Eu

3+

) by hydrothermal reaction

and the spectra of AAO:Eu

3+

was discussed. The excitation spectra were measured by monitoring the 614nm emission. There are three sets of lines can be observed:one strong broad band located at about 254nm can be assigned to the O

2-

→Eu

3+

charge transfer transition. Three weak sharp peaks located at around 363

381 and 394nm consisting of one set of peaks; while another single peak is located at 465nm

these peaks are derived from

7

D→

5

D absorbing transition of 4f electrons of Eu

3+

. Under 254nm light excitation

the characteristic red emission peaks of Eu

3+

ions were observed. The peak at 614nm is due to the

5

D

0

→

7

F

2

electric dipole transition of Eu

3+

and its intensity is extremely stronger than that of the

5

D

0

→

7

F

1

3

4

transition

indicating that the Eu

3+

ions located in the host lattice have lower symmetry. The results showed that the materials synthesized by this method have favorable color purity and higher quenching concentration.