Superposition twinning supported by texture in ZnO nanospikes

Author:

Hrkac Viktor,Kienle Lorenz,Kaps Sören,Lotnyk Andriy,Mishra Yogendra Kumar,Schürmann Ulrich,Duppel Viola,Lotsch Bettina Valeska,Adelung Rainer

Abstract

The morphology and real structure of wurtzite-type ZnO nanospikes grown by the recently introduced flame transport synthesis have been examined by means of advanced transmission electron microscopy (TEM). The rapid synthesis produces nanospikes showing a well defined texture which restricts TEM experiments to a preferred viewing direction of [2 {\overline 1}{\overline 1}3]. Forced by the specific morphology, all of the observed nanospikes show a complicated superposition of twinned domains as an intrinsic real structural feature. The high-resolution contrasts are characterized by lamellar fringes parallel to the (1 {\overline 1} 0 {\overline 1}) planes, and the quasi-kinematic diffraction patterns contain satellite peaks based on multiple scattering. All these phenomena can be interpreted by comparison of experimental and simulated data relying on a supercell approach.

Publisher

International Union of Crystallography (IUCr)

Subject

General Biochemistry, Genetics and Molecular Biology

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