Single-Crystal Nanorings Formed by Epitaxial Self-Coiling of Polar Nanobelts
Top Cited Papers
- 27 February 2004
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 303 (5662) , 1348-1351
- https://doi.org/10.1126/science.1092356
Abstract
Freestanding single-crystal complete nanorings of zinc oxide were formed via a spontaneous self-coiling process during the growth of polar nanobelts. The nanoring appeared to be initiated by circular folding of a nanobelt, caused by long-range electrostatic interaction. Coaxial and uniradial loop-by-loop winding of the nanobelt formed a complete ring. Short-range chemical bonding among the loops resulted in a single-crystal structure. The self-coiling is likely to be driven by minimizing the energy contributed by polar charges, surface area, and elastic deformation. Zinc oxide nanorings formed by self-coiling of nanobelts may be useful for investigating polar surface–induced growth processes, fundamental physics phenomena, and nanoscale devices.Keywords
This publication has 9 references indexed in Scilit:
- Spontaneous Polarization-Induced Nanohelixes, Nanosprings, and Nanorings of Piezoelectric NanobeltsNano Letters, 2003
- Stacking Faults in Formation of Silver NanodisksThe Journal of Physical Chemistry B, 2003
- Defect characterization in ZnO layers grown by plasma-enhanced molecular-beam epitaxy on (0001) sapphire substratesApplied Physics Letters, 2001
- Nanobelts of Semiconducting OxidesScience, 2001
- Aharonov-Bohm Oscillations in the Exciton Luminescence from a Semiconductor NanoringPhysica Status Solidi (b), 2000
- Aggregation-Based Crystal Growth and Microstructure Development in Natural Iron Oxyhydroxide Biomineralization ProductsScience, 2000
- Energetics and electronic structure of stacking faults in AlN, GaN, and InNPhysical Review B, 1998
- Nanocrystal gold moleculesAdvanced Materials, 1996
- Self-Organization of CdSe Nanocrystallites into Three-Dimensional Quantum Dot SuperlatticesScience, 1995