Journal of Materials Science

, Volume 42, Issue 18, pp 7927–7933 | Cite as

Characterization of spray deposited CoWO4 thin films for photovoltaic electrochemical studies

  • P. K. PandeyEmail author
  • N. S. Bhave
  • R. B. Kharat


Preparation of Cobalt tungstate (CoWO4) thin film by spray pyrolysis with ammonical solution as a precursor is presented. The phase and surface morphology characterizations have been carried out by XRD and SEM analysis. The study of optical absorption spectrum in the wavelength range 350 – 850 nm shows direct as well as indirect optical transitions in the thin film material. The d. c. electrical conductivity measurements in the temperature range 310–500 K indicate semiconducting behavior of the thin film. The thin films deposited on fluorine doped tin oxide (FTO) coated conducting glass substrates were used as a photoanode in photovoltaic electrochemical (PVEC) cell with configuration: CoWO4 | Ce4+, Ce3+ | Pt; 0.1 M in 0.1 N H2SO4. The PVEC characterization reveals the fill factor and power conversion efficiency to be 0.36 and 0.62%, respectively. The flat band potential is found to be −0.18 V (SCE).


Spray Pyrolysis Power Conversion Efficiency Thin Film Deposition Space Charge Layer NiMoO4 



One of the authors (RBK) is thankful to University Grants Commission (U. G. C.), India for the award of Emeritus Fellowship and the financial support to carry out this research work. We sincerely acknowledge Prof C H Bhosale, Shivaji University, India for providing infrastructural support to carry out few experiments.


  1. 1.
    Dusastre V, Williams DE (1999) J Mater Chem 9:965CrossRefGoogle Scholar
  2. 2.
    Stern DL, Grasselli RK (1997) J Catal 167:570CrossRefGoogle Scholar
  3. 3.
    Kuzmin A, Purans J, Kalendrev R, Paiharey D, Mathey Y (2001) Electrochimica Acta 46:2233CrossRefGoogle Scholar
  4. 4.
    Montemayor SM, Fuentes AF (2004) Ceramic International 30:393CrossRefGoogle Scholar
  5. 5.
    Pandey PK, Bhave NS, Kharat RB (2005) Matt Lett 59:3149CrossRefGoogle Scholar
  6. 6.
    Dhumane WM, Kichambare PD, Kharat RB (1990) J Electrochem Soc Ind 67:612Google Scholar
  7. 7.
    Fress KN (1982) Appl Phys Lett 40:275CrossRefGoogle Scholar
  8. 8.
    Liu CH, Wang JH (1980) Appl Phys Lett 36:852CrossRefGoogle Scholar
  9. 9.
    Pandey PK, Bhave NS, Kharat RB (2006) Electrochim Acta 51:4659CrossRefGoogle Scholar
  10. 10.
    Pandey PK, Bhave NS, Kharat RB (2006) Mater Res Bull 41:1160CrossRefGoogle Scholar
  11. 11.
    Subbramaiah S, Raja VS (1994) Sol Energy Mater Sol Cells 32:1CrossRefGoogle Scholar
  12. 12.
    Pandey PK, Bhave NS, Kharat RB (2005) Ind J Chem 44A:2034Google Scholar
  13. 13.
    Kiledar VV, Uplane MD, Lokhande CD, Bhosale CH (1995) Ind J Pure Appl Phys 33:773Google Scholar
  14. 14.
    Nunes P, Fernandes B, Fortunato E, Vilarinho P, Martius R (1999) Thin Solid Films 337:176CrossRefGoogle Scholar
  15. 15.
    Rajpure KY, Bhosale CH (2000) Mat Chem Phys 64:14CrossRefGoogle Scholar
  16. 16.
    Sharon M, Kumar S, Sathe NP (1984) Solar Cells 12:353CrossRefGoogle Scholar
  17. 17.
    Pandey PK, Bhave NS, Kharat RB (2006) Ind J Pure Appl Phys 44:52Google Scholar
  18. 18.
    JCPDS-ICDD File No. 72-0479 (2001)Google Scholar
  19. 19.
    Mahmaud SA, Akl AA, Kamal H, Abdel-Hady K (2002) Physica B 311:366CrossRefGoogle Scholar
  20. 20.
    Bardeen J, Blatt FJ, Hall LH (1956) In: Breeckenridge R, Russel B, Halm T (eds) Photoconductivity conf. Wiley, New YorkGoogle Scholar
  21. 21.
    Moss TS (1961) Optical properties of semiconductors, chap. 3. Butterworth, LondonGoogle Scholar
  22. 22.
    Arora SK, Mathew T, Batra NM (1989) J Phys Chem Solids 50:665CrossRefGoogle Scholar
  23. 23.
    Bharati R, Singh RA (1982) J Mater Sci 16:511CrossRefGoogle Scholar
  24. 24.
    Yadao RB (1983) J Phys Chem Solids 44:697CrossRefGoogle Scholar
  25. 25.
    Bharati R, Shaker R, Singh RA (1980) Pramana 14:449CrossRefGoogle Scholar
  26. 26.
    Pandey PK, Bhave NS, Kharat RB (2005) Ind J Chem 44A:1186Google Scholar
  27. 27.
    Gerischer H (1983) J Electroanal Chem Soc 150:553CrossRefGoogle Scholar
  28. 28.
    Kline G, Kam KK, Ziegler R, Parkinson BA (1982) Sol Energy Mat 6:337CrossRefGoogle Scholar
  29. 29.
    Wilson JR, Park SM (1981) J Electrochem Soc 128:2369CrossRefGoogle Scholar
  30. 30.
    Arora SK, Mathew T, Batra NM (1990) J Phys D Appl Phys 23:460CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Department of ChemistryRTM Nagpur UniversityNagpurIndia

Personalised recommendations