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Visible emission from Ce-doped ZnO nanorods grown by hydrothermal method without a post thermal annealing process

Title
Visible emission from Ce-doped ZnO nanorods grown by hydrothermal method without a post thermal annealing process
Authors
Jung, Yong IlNoh, Bum YoungLee, Young SeokBaek, Seong-HoKim, Jae HyeonPark, Il Kyu
DGIST Authors
Jung, Yong Il; Noh, Bum Young; Lee, Young Seok; Baek, Seong-HoKim, Jae Hyeon; Park, Il Kyu
Issue Date
2012-01
Citation
Nanoscale Research Letters, 7
Type
Article
ISSN
1556-276X
Abstract
Visible light-emitting Ce-doped ZnO nanorods [NRs] without a post thermal annealing process were grown by hydrothermal method on a Si (100) substrate at a low temperature of 90A degrees C. The structural investigations of Ce-doped ZnO NRs showed that the Ce3+ ions were successfully incorporated into the ZnO lattice sites without forming unwanted Ce-related compounds or precipitates. The optical investigation by photoluminescence spectra shows that the doped Ce3+ ions in the ZnO NRs act as an efficient luminescence center at 540 nm which corresponds to the optical transition of 5d -> 4f orbitals in the Ce3+ ions. The photoluminescence intensity of the Ce-doped ZnO NRs increased with the increasing content of the Ce-doping agent because the energy transfer of the excited electrons in ZnO to the Ce3+ ions would be enhanced by increased Ce3+ ions.
URI
http://hdl.handle.net/20.500.11750/13403
DOI
10.1186/1556-276X-7-43
Publisher
SPRINGER
Related Researcher
Files:
There are no files associated with this item.
Collection:
Division of Energy Technology1. Journal Articles


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