| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Energetic Evolution of Single-Crystalline ZnO Nanowires and Nanotubes |
LI Li-Juan1, ZHAO Ming-Wen2, JI Yan-Ju3, LI Feng4, LIU Xiang-Dong2 |
| 1School of Engineering, Shandong Institute of Commerce and Technology, Jinan 250103 2School of Physics, Shandong University, Jinan 250100 3School of Science, Shandong Jianzhu University, Jinan 250101 4School of Physics and Electronic Engineering, Taishan University, Taian 271021 |
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| Cite this article: |
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LI Li-Juan, ZHAO Ming-Wen, JI Yan-Ju et al 2010 Chin. Phys. Lett. 27 086105 |
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Abstract We report the formation energies of wurtzite zinc oxide (w-ZnO) nanowires (NWs) and nanotubes (NTs) with faceted morphologies, and show that hexagonal NWs (h-NWs) are energetically advantageous over the NWs with rhombic (r-), squared (s-), and triangular (t-) cross sections. The formation energies of h-NWs are proportional to the inverse of wire radius, whereas those of single-crystalline NTs are proportional to the inverse of wall thickness, irrespectively to tube radius. A simple model is presented to interpret these features.
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| Keywords:
61.46.+w
61.50.Ah
61.82.Rx
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Received: 02 January 2010
Published: 28 July 2010
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| PACS: |
61.46.+w
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61.50.Ah
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(Theory of crystal structure, crystal symmetry; calculations and modeling)
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61.82.Rx
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(Nanocrystalline materials)
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