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Zinc Oxide Microtowers by Vapor Phase Homoepitaxial Regrowth
Author(s) -
Pan Zhengwei,
Budai John D.,
Dai Zu Rong,
Liu Wenjun,
Paranthaman M. Parans,
Dai Sheng
Publication year - 2009
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200802138
Subject(s) - pyramid (geometry) , materials science , radius , radius of curvature , habit , prism , hexagonal crystal system , phase (matter) , epitaxy , oxide , zinc , crystallography , curvature , optics , information retrieval , optoelectronics , nanotechnology , computer science , geometry , physics , mathematics , metallurgy , chemistry , organic chemistry , psychology , mean curvature , computer security , mean curvature flow , layer (electronics) , psychotherapist
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.