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Effects of Co doping on structural, morphological and transport properties of sol-gel AZO thin films
S K NEOGI, R GHOSH, G K PAUL, S K BERA,
Published in ELSEVIER SCIENCE SA
2009
Volume: 487
   
Issue: 43467
Pages: 269 - 273
Abstract
Cobalt (Co) doped AZO (2 at.% Al doped ZnO) thin films were synthesized by sol-gel technique. The films were found to have polycrystalline wurtzite structure of ZnO. The structural, morphological and transport properties of the films were investigated and found to be strongly composition dependent. Grain size and room temperature resistivity of the films were found to decrease with increase of Co content in the AZO films from 1 to 3 at.%. Beyond 3 at.% these parameters were found increasing. The electrical resistivity of the films was measured down to temperature of 100 K. The carrier transport mechanisms have been explained on the basis of thermionic emission and variable range hopping. © 2009 Elsevier B.V. All rights reserved.
About the journal
JournalData powered by TypesetJournal of Alloys and Compounds
PublisherData powered by TypesetELSEVIER SCIENCE SA
ISSN0925-8388
Open AccessNo