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Cobalt-doped ZnO prepared by electrochemistry: Chemistry, morphology, and magnetism

✍ Scribed by Matei, Elena ;Enculescu, Ionut ;Vasilache, Violeta ;Teodorescu, Cristian Mihail

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
821 KB
Volume
207
Category
Article
ISSN
0031-8965

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✦ Synopsis

Abstract

ZnO:Co thin films are prepared by electrochemical deposition at different overpotentials and investigated by scanning electron microscopy, optical spectroscopy, and cathodoluminescence, X‐ray photoelectron spectroscopy and Kerr magnetometry (MOKE). An increase of structural disorder and crystallite reorientation are observed for cobalt‐doped samples. MOKE magnetometry revealed room‐temperature ferromagnetic behavior only for ZnO:Co deposited at βˆ’850 mV. These are the samples with the lower cobalt content and lowest structural perturbation of the ZnO matrix by cobalt.

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