Lateral arrays of vertical ZnO nanowalls on a periodically polarity-inverted ZnO template

Abstract

Well aligned ZnO nanowall arrays with submicron pitch were grown on a periodically polarity-inverted ZnO template using a carbothermal reduction process. Under the conditions of a highly dense Au catalyst for increasing nucleation sites, ZnO nanowalls with a thickness of 126 +/- 10 nm, an average height of 3.4 microm, and a length of about 10 mm were formed on the template. The nanowalls were only grown on a Zn-polar surface due to a different growth mode with an O-polar surface. The results of x-ray diffraction and photoluminescence (PL) measurements revealed a single crystalline, vertical alignment on the template, and a large surface to volume ratio of the ZnO nanowalls.

Bottom-Up Tri-gate Transistors and Submicrosecond Photodetectors from Guided CdS Nanowalls

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Anisotropic epitaxial ZnO/CdO core/shell heterostructure nanorods

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Epitaxial growth of self-ordered ZnO nanostructures on sapphire substrates by seed-assisted hydrothermal growth

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