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In-situ AFM study of the crystallization and pH-dependent stability of ZnO(0001)-Zn surfaces

Published online by Cambridge University Press:  01 February 2011

Markus Valtiner  and
Guido Grundmeier
Markus Valtiner
Affiliation:
valtiner@mpie.de, Max Planck Institut für Eisenforschung GmbH, Department for Interface Chemistry and Surface Engineering, Max-Planck-Strasse 1, Düsseldorf, N/A, Germany, +492116792447, +492116792304
Guido Grundmeier
Affiliation:
g.grundmeier@tc.uni-paderborn.de, University of Paderborn, Dept. for Technical and Macromolecular Chemistry, Warburgerstrasse 100, Paderborn, N/A, Germany
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Abstract

Polar ZnO(0001)-Zn surfaces can be prepared as very well defined and single crystalline surfaces by hydroxide stabilization simply by introducing hydroxides via a wet chemical cleaning step. Within this proceeding we present an in-situ AFM imaging of the crystallization process. The pH dependent stability of the resulting hydroxide-stabilized surfaces was further investigated by means of an ex-situ LEED approach. These investigations show, that it is possible to obtain high quality single crystalline ZnO(0001)-Zn surfaces in a simple way. Moreover, these surfaces turned out to be very stable within a wide range of pH values between 11 and 3 of NaClO4 based 1mM electrolyte solutions.

Keywords

scanning probe microscopy (SPM)oxidecrystalline
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1035: Symposium L – Zinc Oxide and Related Materials–2007 , 2007 , 1035-L13-02
Copyright
Copyright © Materials Research Society 2008

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