Characteristics of CuInSe2 nanowire arrays electrodeposited into anodic alumina templates with dimethyl sulfoxide (DMSO) additive

Pin Kun Hung, Tsung Hau Lin, Mau-phon Houng

研究成果: Article

6 引文 斯高帕斯(Scopus)

摘要

We successfully fabricated ternary CuInSe2 nanowire arrays in a novel acidic Dimethyl sulfoxide (DMSO)-aqueous electrolyte using pulse electrodeposition techniques with the assistance of an anodized aluminum oxide (AAO) template and investigated the effects of deposition potential and a DMSO additive on the composition and crystallization of CuInSe2 nanowires. We obtained the near-stoichiometric CuInSe2 nanowires by tuning the deposition potential at -1.0 V. The addition of DMSO into the electrolyte significantly affects the pore-filling ratio and the growth rate of CuInSe2 nanowires. The detailed microstructure of CuInSe2 nanowires were obtained from the transmission electron microscopy (TEM) analysis, which shows the polycrystalline nature of CuInSe2 nanowires regardless of the electrolyte with and without DMSO. Proposed mechanism for the growth mechanism of nanowires deposited in the electrolyte with DMSO was presented on the basis of kinetic and thermodynamic process. Photoelectrochemical (PEC) characterizations showed that the CuInSe2 nanowires deposited in the electrolyte containing 0.5 mM DMSO exhibited a superior photocurrent response than the CuInSe2 nanowires deposited in the electrolyte without DMSO.

原文English
期刊Journal of the Electrochemical Society
161
發行號3
DOIs
出版狀態Published - 2014 二月 14

    指紋

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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