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ZnO Electrodeposition on Boron-Doped Diamond - Effects of Zinc Precursor Concentration

MetadataDetails
Publication Date2015-04-13
JournalECS Transactions
AuthorsP. Gautier, Anne Vallée, Arnaud Etcheberry, Nathalie Simon
InstitutionsInstitut Lavoisier de Versailles

The cathodic electrodeposition of zinc oxide has been widely studied on various substrates in the last decades. The boron doped diamond (BDD) is a non conventional wide band gap semiconductor, which offers new possibilities as a substrate for this electrochemical deposition. Thus, in the present work, we study the deposition process performed with zinc chloride and dissolved oxygen as a precursor. The effect of zinc precursor concentration in a range of 0.2 to 5 mM is tested at 60°C. The current transient curves coupled with X-Ray Diffraction and Scanning Electron Microscopy analysis, reveal the effect of this parameter on the morphology of obtained ZnO/BDD deposits. Interestingly, the formation of ZnO pyramids was highlighted for the first time.