| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10653224 | Solid State Communications | 2005 | 4 Pages |
Abstract
High quality vertical-aligned ZnO nanorod arrays were synthesized by a simple vapor transport process on Si (111) substrate at a low temperature of 520 °C. Field-emission scanning electron microscopy (FESEM) showed the nanorods have a uniform length of about 1 μm with diameters of 40-120 nm. X-ray diffraction (XRD) analysis confirmed that the nanorods are c-axis orientated. Selected area electron diffraction (SAED) analysis demonstrated the individual nanorod is single crystal. Photoluminescence (PL) measurements were adopted to analyze the optical properties of the nanorods both a strong UV emission and a weak deep-level emission were observed. The optical properties of the samples were also tested after annealing in oxygen atmosphere under different temperatures, deep-level related emission was found disappeared at 600 °C. The dependence of the optical properties on the annealing temperatures was also discussed.
Keywords
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
X.Q. Meng, D.Z. Shen, J.Y. Zhang, D.X. Zhao, Y.M. Lu, L. Dong, Z.Z. Zhang, Y.C. Liu, X.W. Fan,