| Autor: |
Yichun Liu, Lin Dong, Debin Zhao, X.Q. Meng, D.Z. Shen, Xizhi Fan, Y.M. Lu, Jiayu Zhang, Z. Z. Zhang |
| Rok vydání: |
2005 |
| Předmět: |
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| Zdroj: |
Solid State Communications. 135:179-182 |
| ISSN: |
0038-1098 |
| DOI: |
10.1016/j.ssc.2005.04.015 |
| Popis: |
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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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