Investigation on Hydrothermal Growth of a-Plane ZnO Using Epitaxial Lateral Overgrowth

초록

The growth mechanism and the crystallinity of hydrothermally synthesized nonpolar a-plane ZnO ( a-ZnO) on a-plane GaN template were investigated by using epitaxial lateral overgrowth (ELO) patterns parallel or perpendicular to the c-axis direction. Due to the anisotropic growth rates along the specific crystallographic directions, lateral overgrowth of a-ZnO was observed only for ZnO grown on the ELO stripe patterns perpendicular to the c-axis direction. In X-ray diffraction analysis, a-ZnO grown on the c-axis parallel patterns had smaller FWHM values of the X-ray rocking curves along the X-ray in-beam orientations in the c-and the m-axis directions. (C) The Author(s) 2015. Published by ECS.

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