4.8 Article

Zinc Oxide Microtowers by Vapor Phase Homoepitaxial Regrowth

Journal

ADVANCED MATERIALS
Volume 21, Issue 8, Pages 890-+

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.200802138

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Funding

  1. University of Georgia Research Foundation
  2. US Office of Naval Research
  3. Oak Ridge National Laboratory (ORNL)
  4. US Department of Energy (DOE) [DE-AC05-00OR22725]

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Simultaneous axial and radial epitaxies can be achieved on growing ZnO microtowers through a regrowth technique of repeating the same growth circle for several times. The as-grown ZnO microtowers display a preferential growth habit of hexagonal prism-dihexagonal pyramid. The apexes of the pyramidal towers are very sharp, with a radius of curvature as small as 2 to 50 nm.

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