Na mole concentration dependence on optical p-type behaviors of Na-doped ZnO nanowires
- Title
- Na mole concentration dependence on optical p-type behaviors of Na-doped ZnO nanowires
- Author
- 홍진표
- Keywords
- ZnO nanowires; Na-dopant; Deeper acceptor; Photoluminescence
- Issue Date
- 2014-03
- Publisher
- Elsevier Science B.V., Amsterdam.
- Citation
- CURRENT APPLIED PHYSICS, Vol.14//SUP1 No.- [2014], pp. S103-S106
- Abstract
- We report the structural and optical features of Na-doped ZnO nanowires as a function of Na mole concentration to demonstrate the p-type conduction of Na-doped ZnO nanowires. The samples are prepared on RF-sputtered ZnO seed layers by using a simple hydrothermal method with sodium nitrate, zinc nitrate, and hexamethylenetetramine (HMTA) in an aqueous solution at low temperature (<90 °C). At first, the crystal structure of the c-axis orientation was analyzed using X-ray diffraction patterns. These exhibited a slight shift to lower values of the diffraction angle with decreasing Na mole concentration. To further verify the p-type behaviors of Na-doped ZnO nanowires, cryo-photoluminescence was employed at temperatures ranging from 10 to 300 K, corresponding to the clear appearance of excitons bound to a deeper acceptor (AD0X) and its LO phonon replicas.
- URI
- http://www.sciencedirect.com/science/article/pii/S1567173913003854?via%3Dihubhttp://hdl.handle.net/20.500.11754/50597
- ISSN
- 1567-1739
- DOI
- 10.1016/j.cap.2013.11.014
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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