Premium
Electrochemical growth of ZnO nanowires inside nanoporous alumina templates. A comparison with metallic Zn nanowires growth
Author(s) -
Ramirez Daniel,
Pauporte Thierry,
Gomez Humberto,
Lincot Daniel
Publication year - 2008
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200779444
Subject(s) - nanowire , nanoporous , materials science , zinc , anodizing , electrochemistry , metal , chemical engineering , oxalic acid , nanotechnology , porosity , scanning electron microscope , metallurgy , electrode , inorganic chemistry , aluminium , chemistry , composite material , engineering
Abstract Molecular oxygen reduction in presence of Zn(II) allowed to get arrays of zinc oxide (ZnO) nanowires (NWs) inside thick anodic alumina membranes (AAM), previously made by anodization in oxalic acid. A Zinc (Zn) NWs array made by electrochemical deposition (ED) was employed as a metal reference in order to compare its growth behavior with respect to that of ZnO, a semiconducting material. Chronoamperometric measurements for Zn NWs showed a typical response for metallic growth inside porous templates while ZnO NWs did not show this behavior. We observed that Zn NWs grew faster than ZnO NWs as checked by the electrical charge. SEM images showed the presence of ZnO NWs only after long deposition time. X‐ray diffraction data confirmed the ZnO structure. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)