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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 Il; Noh, Bum Young; Lee, Young Seok; Baek, Seong-Ho; Kim, Jae Hyeon; Park, Il Kyu
- DGIST Authors
- Jung, Yong Il; Noh, Bum Young; Lee, Young Seok; Baek, Seong-Ho; Kim, 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
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- Files:
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- Collection:
- Division of Energy Technology1. Journal Articles
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