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Properties of Co-doped ZnO films prepared by electrochemical deposition

✍ Scribed by Y. X. Wang; X. Ding; Y. Cheng; Y. J. Zhang; L. L. Yang; H. L. Liu; H. G. Fan; Y. Liu; J. H. Yang

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
186 KB
Volume
44
Category
Article
ISSN
0232-1300

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✦ Synopsis

Abstract

We prepared Co‐doped ZnO films by the electrochemical deposition. X‐ray diffraction (XRD), high resolution transmission microscopy (HRTEM), x‐ray photoelectron spectroscopy (XPS), atomic force microscope (AFM), x‐ray absorption near‐edge structure (XANES), vibrating sample magnetometer (VSM), optical absorption, and photoluminescence (PL) measurements were carried out on the samples. The results showed Co atoms substituted Zn atoms in the ZnO lattice without the formation of the impurity phase. VSM measurements showed the ferromagnetic properties for the Co‐doped ZnO samples. When the Co doping concentration increased, the band gaps were widened and the PL peak positions shifted towards the short wavelength direction. (Β© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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