Advertisement

Journal of Sol-Gel Science and Technology

, Volume 26, Issue 1–3, pp 817–821 | Cite as

Elaboration of ZnO Thin Films with Preferential Orientation by a Soft Chemistry Route

  • L. Znaidi
  • G.J.A.A. Soler Illia
  • R. Le Guennic
  • C. Sanchez
  • A. Kanaev
Article

Abstract

Microcrystalline ZnO films presenting well-defined and tunable orientation were obtained by spin coating of alcoholic sols by two different approaches, based on controlled hydrolysis-condensation of Zn-ethanolamine complexes. As-deposited films are formed by amorphous zinc oxide-acetate submicronic particles, which are transformed into oriented ZnO after thermal treatment. The orientation of ZnO depends on the synthesis method, and the solvent. While in ethanol and [Zn] = 0.05 mol·L−1, films consist of rectangular platelets oriented with the (100) planes parallel to the substrate (a//n), the orientation of the particles changes to (c//n) for systems in 2-methoxyethanol (2-ME) and [Zn] = 0.75 mol·L−1. A study of chemical factors that influence the orientation (precursor, solvent, MEA/Zn ratio, concentration, coating parameters, heat treatment) is presented.

thin films zinc oxide preferential orientation spin-coating 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    M. Ohyama, H. Kozuka, T. Yoko, and S. Sakka, J. Ceram. Soc. Japan 104, 296 (1996).Google Scholar
  2. 2.
    D. Bao, H. Gu, and A. Kuang, Thin Solid Films 312, 37 (1998).Google Scholar
  3. 3.
    Z.K. Tang, G.K.L. Wong, P. Yu, M. Kawasaki, A. Ohtomo, H. Koinuma, and Y. Segawa, Appl. Phys. Lett. 72, 3270 (1998).Google Scholar
  4. 4.
    M. Peneza, C. Martucci, V.I. Anisimkin, and L. Vasanelli, Mater. Sci. Forum 203, 137 (1996).Google Scholar
  5. 5.
    A. Ghosh and S. Basu, Mater. Chem. Phys. 27, 45 (1991); J. De Merchant and M. Cocivera, Chem. Mater. 7, 1742 (1995).Google Scholar
  6. 6.
    L. Spanhel and M.A. Anderson, J. Am. Chem. Soc. 113, 2826 (1991).Google Scholar
  7. 7.
    S. Sakohara, L.D. Tickanen, and M.A. Anderson, J. Phys. Chem. 96, 11086 (1992).Google Scholar
  8. 8.
    M. Ohyama, H. Kozuka, and T. Yoko, Thin Solid Films 306, 78 (1997).Google Scholar
  9. 9.
    S. Doeuff, M. Henry, C. Sanchez, and J. Livage, J. Non-Cryst. Solids 89, 206 (1987); S. Barboux-Doeuff and C. Sanchez, Mat. Res. Bull. 29, 1 (1994).Google Scholar
  10. 10.
    G. Socrates, Infrared Characteristic Group Frequencies, 2nd edn. (Wiley, Chichester, 1994); K. Nakamoto, Infrared and Raman Spectra of Inorganic and Coordination Compounds, 4th edn. (Wiley, New York, 1986).Google Scholar
  11. 11.
    M. Ohyama, H. Kozuka, and T. Yoko, J. Amer. Ceram. Soc. 81, 1622 (1997).Google Scholar
  12. 12.
    A. Guinier, Théorie et Technique de la Radiocristallographie (Dunod, Paris, 1964).Google Scholar

Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • L. Znaidi
  • G.J.A.A. Soler Illia
  • R. Le Guennic
  • C. Sanchez
  • A. Kanaev

There are no affiliations available

Personalised recommendations