Fabrication and photoluminescent properties of Gd2O3 : EU3+ nanowires in AAO template.
Uniform Gd2O3 : Eu3+ nanowires were fabricated by using anodic aluminum oxide template (AAO). The spectral measurements indicate that with the increasing annealing temperature the excitation band of Eu3+ in Gd2O3 : Eu3+ nanowires/AAO shifted blue, the intensity ratio of 5D0-7F2 to 5D0-7F1, decreased, and the lifetime became longer. In the sample annealed at 1000 degrees C two spectral components, the sharper and broader lines were identified, corresponding to two different local environments, the Eu3+ ions in cubic phase and in amorphous phase, respectively. The 5D0-7F1 transitions of Eu3+ ions in cubic phase had longer lifetime than that in amorphous phase. In contrast to the lifetime of the 5D0-7F(j) transitions in the bulk, that in Gd2O3 : Eu3+/AAO composite films increased due to influence of the surrounding media (AAO).
Li
Suwen
S
Key Laboratory of Excited State Physics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 16 Eastern Nan-Hu Road, Changchun 130033, P. R. China.
Song
Hongwei
H
Yu
Lixin
L
Liu
Zhongxin
Z
Pan
Guohui
G
Yu
Hongquan
H
Dai
QiLin
Q
Fan
Libo
L
Lei
Yanqiang
Y
Wang
Tie
T
Ren
Xinguang
X
Lu
Shaozhe
S
Zhao
Haifeng
H
D000537:Aluminum Oxide / Q000737:chemistry*; D004577:Electron Probe Microanalysis; D005063:Europium / Q000737:chemistry* / Q000528:radiation effects; D005682:Gadolinium / Q000737:chemistry* / Q000528:radiation effects; D006358:Hot Temperature; D049449:Luminescence; D008163:Luminescent Measurements / Q000379:methods*; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D053770:Nanowires / Q000737:chemistry* / Q000528:radiation effects; D010777:Photochemistry / Q000379:methods*; D016062:Porosity; D013053:Spectrophotometry; D014961:X-Ray Diffraction
D005063:Europium; C030581:gadolinium oxide; D005682:Gadolinium; D000537:Aluminum Oxide