In:
Journal of Nanoscience and Nanotechnology, American Scientific Publishers, Vol. 7, No. 2 ( 2007-02-01), p. 474-480
Abstract:
Uniform Gd 2 O 3 : Eu 3+ nanowires were fabricated by using anodic aluminum oxide template (AAO). The spectral measurements indicate that with the increasing annealing temperature the excitation band of Eu 3+ in Gd 2 O 3 : Eu 3+ nanowires/AAO shifted blue, the intensity ratio of 5 D 0 – 7 F 2 to 5 D 0 – 7 F 1 decreased, and the lifetime became longer. In the sample annealed at 1000°C two spectral components, the sharper and
broader lines were identified, corresponding to two different local environments, the Eu 3+ ions in cubic phase and in amorphous phase, respectively. The 5 D 0 – 7 F 1 transitions of Eu 3+ ions in cubic phase had longer lifetime
than that in amorphous phase. In contrast to the lifetime of the 5 D 0 – 7 F J transitions in the bulk, that in Gd 2 O 3 : Eu 3+ /AAO composite films increased due to influence of the surrounding media (AAO).
Type of Medium:
Online Resource
ISSN:
1533-4880
DOI:
10.1166/jnn.2007.18042
Language:
English
Publisher:
American Scientific Publishers
Publication Date:
2007
SSG:
11
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