Skip to main content
SpringerLink
Log in

Electrical and optical absorption studies of PVA doped with CoCl2 and NiCl2

  • Papers
  • Published:
Journal of Materials Science: Materials in Electronics Aims and scope Submit manuscript

Abstract

Electrical resistivity and optical absorption of PVA doped with both CoCl2 and NiCl2 have been studied. It was found that the conduction was mainly ionic in nature between 20 and 120 ‡C. The resistivity decreased with an increase in the nickel content, indicating the role of transition metal ions. The compensation law was found to be valid for the investigated samples. Optical absorption spectra were obtained in the range 4000–50 000cm −1 and analysed in terms of d-d transitions. It is concluded that nickel is in the divalent state and is ionically co-ordinated. Moreover, nickel is acted upon by an octahedral symmetrical field.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. A. F. BASHA, M. AMIN and H. ABDEL SAMAD, Indian J. Phys. 62A (1988) 119.

    Google Scholar 

  2. A. F. BASHA, M. AMIN, K. DARWISH and H. ABDEL SAMAD, J. Polym. Mater. 5 (1988b) 115.

    Google Scholar 

  3. H. MEIER, “Organic semiconductors”, (Verlag chemie GmbH, Weinheim, 1974) P. 624.

    Google Scholar 

  4. K. MIYAIRI, Y. OHTA and M. LEDA, J. Phys. D. Appl. Phys. 21 (1988) 1519.

    Google Scholar 

  5. B. E. C. BANK, V. DAMJANOVIC and C. A. VERNON, Nature 240 (1972) 147.

    Google Scholar 

  6. W. WACLAWCK and M. ZABKOWSKA, Phys. Stat. Sol. (a)} (1980) K17.

  7. Y. A. VIDADI, Phys. Stat. Sol. (a) 61 (1980) K59.

    Google Scholar 

  8. M. A. KHALED, A. F. BASHA, M. EI-OCKER and H. ABDEL SAMAD, Indian J. Phys. 63A(4) (1989) 399.

    Google Scholar 

  9. G. KEMENY and S. D. MAHANTI, Proc. Nat. Acad. Sci. USA 72 (1975) 999.

    Google Scholar 

  10. A. E. POCHTENNYI and E. V. RATNIKOV, Dokl. Akad. Nauk Bssr 25 (1981) 896.

    Google Scholar 

  11. PAOLO PARRINI, Polymer 14 (1973) 445.

    Google Scholar 

  12. C. J. BALLHAUSSEN, “Introduction to ligand field theory”, (McGraw-Hill, New York 1962).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Physics Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt

    M. A. Khaled & M. M. El-Ocker

  2. Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt

    H. S. Risk

  3. Physics Department, University College for Women, Ain Shams University, Cairo, Egypt

    H. Elzahed

Authors
  1. M. A. Khaled
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. M. M. El-Ocker
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. H. S. Risk
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. H. Elzahed
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Khaled, M.A., El-Ocker, M.M., Risk, H.S. et al. Electrical and optical absorption studies of PVA doped with CoCl2 and NiCl2 . J Mater Sci: Mater Electron 6, 424–426 (1995). https://doi.org/10.1007/BF00144646

Download citation

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00144646

Keywords

Search

Navigation