| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10156436 | Journal of Crystal Growth | 2018 | 28 Pages |
Abstract
We report the formation and the optical properties of Tm,Yb-codoped ZnO nanowires (NWs) grown by sputtering-assisted metalorganic chemical vapor deposition. The growth conditions of the ZnO core NWs are optimized by changing the growth temperature and the VI/II ratio. The optimal conditions are elucidated via structural analysis by scanning electron microscopy, X-ray diffractometry, and optical characterization. The ZnO:Tm,Yb/ZnO core-shell NWs are formed by growing ZnO:Tm,Yb shells on optimized ZnO core NWs. Light emission originating from the highest 1G4-3H6 transitions from Tm3+ ions is observed around 490â¯nm in ZnO:Tm,Yb/ZnO NWs due to the improved crystal quality of the ZnO host by utilizing the NW configuration.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
J. Tatebayashi, G. Yoshii, T. Nakajima, M. Mishina, Y. Fujiwara,