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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:
[email protected], 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:
[email protected], 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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References

1. Dulub, O.; Diebold, U.; Kresse, G., Novel stabilization mechanism on polar surfaces: ZnO(0001)-Zn. Physical Review Letters 2003, 90, (1).10.1103/PhysRevLett.90.016102Google Scholar
2. Dulub, O.; Boatner, L. A.; Diebold, U., STM study of the geometric and electronic structure of ZnO(0001)-Zn, (000(1)over-bar)-O, (10(1)over-bar0), and (11(2)over-bar0) surfaces. Surface Science 2002, 519, (3), 201-217.Google Scholar
3. Woll, C., The chemistry and physics of zinc oxide surfaces. Progress in Surface Science 2007, 82, (2-3), 55–120.Google Scholar
4. Gerischer, H.; Sorg, N., Chemical Dissolution of Zinc-Oxide Crystals in Aqueous-Electrolytes - an Analysis of the Kinetics. Electrochimica Acta 1992, 37, (5), 827–835.10.1016/0013-4686(92)85035-JGoogle Scholar
5. Gerischer, H.; Sorg, N., Chemical Dissolution of Oxides - Experiments with Sintered ZnO Pellets and Zno Single-Crystals. Werkstoffe Und Korrosion-Materials and Corrosion 1991, 42, (4), [149–157.Google Scholar
6. Deren, J.; Nowok, J., Dissolution of ZnO Crystals in HCl and HNO3 . Roczniki Chemii 1972, 46, (12), 2361–2364.Google Scholar
7. Hamann, T. W.; Gstrein, F.; Brunschwig, B. S.; Lewis, N. S., Measurement of the free-energy dependence of interfacial charge-transfer rate constants using ZnO/H2O semiconductor/liquid contacts. Journal of the American Chemical Society 2005, 127, (21), 7815–7824.Google Scholar
8. Valtiner, M.; Borodin, S.; Grundmeier, G., Preparation and characterisation of hydroxide stabilised ZnO(0001)–Zn–OH surfaces. Physical Chemistry Chemical Physics 2007, 9, (19), 2297–2436.10.1039/B617600CGoogle Scholar
9. Tasker, P. W., Stability of Ionic-Crystal Surfaces. Journal of Physics C-Solid State Physics 1979, 12, (22), 4977–4984.Google Scholar