Structural Characterization of CVD-grown ZnO Nanocombs
| Autor: | Long The Phan, Yuekui Sun, R. Vincent |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Materials science
Photoluminescence Atmospheric pressure business.industry fungi General Physics and Astronomy Chemical vapor deposition Crystal structure Crystal stomatognathic diseases symbols.namesake Optics stomatognathic system Ribbon symbols Optoelectronics Raman spectroscopy business Single crystal |
| Zdroj: | Journal of the Korean Physical Society. 59:60-64 |
| ISSN: | 0374-4884 |
| DOI: | 10.3938/jkps.59.60 |
| Popis: | We present the growth of ZnO nanocombs by using chemical vapor deposition (CVD) under atmospheric pressure. Two types of single- and double-side teethed nanocombs have been obtained. Structural analyses based on electron microscopy reveal the diameter and the period of teeth to be about 50 nm and 75 - 100 nm, respectively, while the length of the comb ribbons is 7 - 10 µm. For the single-teethed type, the entire nanocomb is a single crystal with the teeth grown along the [0001] direction, and the comb ribbon grown along the [10-10] direction. For double-side teethed nanocombs, they are twin crystals with twin boundaries of {10-13}. The comb ribbons grow along the directions of h10-11i while the teeth grow along the [0001] direction. With the results obtained, we believe that the growth of nanocombs follows the vapour-solid process. Studies of the optical properties basing on photoluminescence and Raman spectroscopy have indicated that the ZnO nanocombs have good crystal quality. |
| Databáze: | OpenAIRE |
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