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
Author(s)
정용일[정용일]노범영[노범영]이영석[이영석]백성호[백성호]김재현[김재현]박일규
Keywords
NANOPARTICLES; DELIVERY; AGENTS; OXIDE
Issue Date
201201
Publisher
SPRINGER
Citation
NANOSCALE RESEARCH LETTERS, v.7
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/YU.REPOSITORY/30009http://dx.doi.org/10.1186/1556-276X-7-43
ISSN
1556-276X
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공과대학 > 전자공학과 > Articles
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