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Theoretical determination of the necessary conditions for the formation of ZnO nanorings and nanohelices

Z. C. Tu·Q. X. Li·X. Hu
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Abstract

The formation of ZnO nanorings and nanohelices with large polar surfaces observed in experiments [Nano Lett. 3, 1625 (2003); J. Am. Chem. Soc. 126, 6703 (2004)] is shown to be a result of the competition between elastic energy, spontaneous polarization-induced surface energy, volume energy, and defect-induced energy. It is found that nanorings and nanohelices observed in experiments are stable and energetically favorable structures.

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Z. C. Tu, Q. X. Li, X. Hu. 2006-03-05. Theoretical determination of the necessary conditions for the formation of ZnO nanorings and nanohelices. https://doi.org/10.1103/physrevb.73.115402

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