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Investigation of Photoluminescence for Solution-processed ZnO Nanorod Films
- Authors
- Lee, D. J.; Lee, Y. S.; Park, J. H.; Yee, K. J.
- Issue Date
- Jan-2011
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- ZnO nanorod; Photoluminescence; Oxygen vacancy
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.58, no.1, pp.105 - 108
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 58
- Number
- 1
- Start Page
- 105
- End Page
- 108
- ISSN
- 0374-4884
- Abstract
- We report on the photoluminescence (PL) spectra of ZnO nanorod (NR) films prepared by using the room-temperature solution-process method. Without any post-annealing process, the PL spectra of ZnO NR films exhibit a strong near-band-edge peak in UV region even at room temperature while the deep-level (DL) peak in the visible region is almost suppressed. The temperature-dependent PL measurement shows that the donor-bound exciton peaks are strongly observed at the lowest temperatures. The red-shift of the DL peak with decreasing temperature indicates that the origin of the DL emission might be related with the oxygen vacancy.
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Related Researcher
- Lee, Yun Sang
- College of Natural Sciences (Department of Physics)