Journal of Applied Electrochemistry

, Volume 37, Issue 5, pp 549–555 | Cite as

Electrodeposition of AuCo alloys and multilayers



AuCo alloys and Au/Co multilayers have been fabricated by electrodeposition from non cyanide-containing electrolytes. The effect of pH and citric acid concentration on the deposit composition and current efficiency was investigated. Results showed that a lower citric acid concentration (0.47 m) at pH 6.15 was favored for multilayered Au/Co deposits with disparate compositions in each layer. An increase in the citric acid concentration or pH requires a larger applied current density to achieve the same cobalt concentration, and results in a drop of current efficiency.


cobalt–gold alloys electrodeposited AuCo multilayer non-cyanide electrolyte 



The authors gratefully acknowledge NSF for support of this work under Grant NIRT- NSF (#CTS-0210832) and the Louisiana State University Center for Biomodular Multi-Scale Systems. Also X. Xie and C. Henk are warmly acknowledged for their help in SEM and TEM analyses.


  1. 1.
    Chu W., Smith H.I., Rishton S.A., Kern D.P., Schattenburg M.L. (1992) J. Vac. Sci. Technol. B 10:118CrossRefGoogle Scholar
  2. 2.
    Jasper J., Shiels D. (2000) Eur. Semicond. 22:86Google Scholar
  3. 3.
    Okinak Y., Hoshino M. (1998) Gold Bull. 31:3Google Scholar
  4. 4.
    P.A. Kohl, in M. Schlesinger and M. Paunovic (Eds), ‘Modern Electroplating’ (J. Wiley & Sons, New York, 4th edn, 2000), 207 ppGoogle Scholar
  5. 5.
    Velu E., Dupas C., Renard D., Renard J.P., Seiden J. (1998) Phys. Rev. B: Condens. Matter 37:668Google Scholar
  6. 6.
    Hutten A., Sudfeld D., Wojczykowski K., Jutzi P., Reiss G. (2003) J. Magn. Magn. Mater. 262:23CrossRefGoogle Scholar
  7. 7.
    Valizadeh S., Hultman L., George J.-M., Leisner P. (2002) Funct. Mater. 12:766CrossRefGoogle Scholar
  8. 8.
    Valizadeh S., Svedberg E.B., Leisner P. (2002) J. Appl. Electrochem. 32:97CrossRefGoogle Scholar
  9. 9., (2004)Google Scholar
  10. 10.
    Sullivan A.M., Kohl P.A. (1997) J. Electrochem. Soc. 144:1686CrossRefGoogle Scholar
  11. 11.
    Traut J., Wright J., Williams J. (1990) Plat. Surf. Finish 77:49Google Scholar
  12. 12.
    Honma H., Hagiwara K. (1995) Electrochem. Soc. 142:81CrossRefGoogle Scholar
  13. 13.
    K. Kosaki, M. Matsuoka, Y. Seiwa, S. Orisaka, K. Nishitani and M. Otsubo, in M. Datta, K. Sheppard and D. Snyder (Eds), ‘Electrochemical Microfabrication’ (The Electrochemical Society Proceeding Series, Pennington, NJ, 1992), PV 92-3, 317 ppGoogle Scholar
  14. 14.
    Bonhote C., Landolt D. (1997) Electrochim. Acta 42:2407CrossRefGoogle Scholar
  15. 15.
    El Rehim S.S.A., El Wahaab S.M.A., Ibrahim M.A.M., Dankeria M.M. (1998) J. Chem. Technol. Biotechnol. 73:369CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  1. 1.Mary A. and Gordon Cain Department of Chemical EngineeringLouisiana State UniversityBaton RougeUSA

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