Journal of Materials Science

, Volume 41, Issue 11, pp 3521–3526 | Cite as

Influence of iodine on the electrical properties of nickel phthalocyanines thin film devices

  • A. C. Varghese
  • C. S. Menon


The electrical properties of pure Nickel Phthalocyanine (Ni Pc) thin films and iodine doped Ni Pc thin films with Gold and Aluminium electrode sandwiched devices have been investigated. The electrical properties and the various electrical parameters of the pure and iodine-doped films have been estimated and compared from the analysis of the current density characteristics. From our study we find that the iodine doping enhanced the electrical conductivity compared to pure Nickel Phthalocyanine and the conduction mechanism is much improved with the iodine doping. Interestingly these films after iodine doping showed remarkably increased electrical conductivity nearly ten times that of pure Phthalocyanine. This may be accounted for by the decrease in the metal-metal bond distance. At low voltages the film shows an ohmic conduction whereas at higher voltage levels the conduction is dominated by space charged limited conduction. Further the reverse conduction mechanisms have also been investigated for this sandwiched device. From the current limitations in the reverse condition a strong rectifying behaviour is evident.


Phthalocyanine Thin Solid Film Ohmic Conduction High Voltage Level Space Charged Limited Conduction 
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  1. 1.
    K. P. KRISHNA KUMAR and C. S. MENON, J. Solid State Chem. 128 (1997) 27.CrossRefGoogle Scholar
  2. 2.
    S. AMBILY and C. S. MENON, Thin Solid Thin Films 347 (1999) 284.CrossRefGoogle Scholar
  3. 3.
    G. B. KAMATH, C. M. JSEPH and C. S. MENON, Mater. Lett. 57 (2002) 730.CrossRefGoogle Scholar
  4. 4.
    K. R. RAJESH and C. S MENON, Materials letters 58 (2002) 329.CrossRefGoogle Scholar
  5. 5.
    M. C. Petty, Bio Sensors and Bio Electronics 10 (1995) 129.Google Scholar
  6. 6.
    A. COLE, R. J. MCLLROU, THORPE and S. C.COOK, Sensors and Actuators 13 (1993) 416.CrossRefGoogle Scholar
  7. 7.
    M. E. AZIM ARAGHI and A. KRIER, App. Surf. Sci. 119 (1997) 260.CrossRefGoogle Scholar
  8. 8.
    R. RELLA, A. SERRA, P. SICILLIANO and A. TEPORE Thin Solid Films 286 (1996) 256.CrossRefGoogle Scholar
  9. 9.
    S. ANTOHE, N. TOMOZEU and S. GOGONEA, Physics Status Solid (1991) 397.Google Scholar
  10. 10.
    M. PFEIFFER, A. BEYER, T. FRITZ and K. LEO, Appl. Phys. Lett. 73 (1998) 3202.CrossRefGoogle Scholar
  11. 11.
    Q. ZHOU and R. D. GOULD, Thin Solid Films 317 (1998) 436.CrossRefGoogle Scholar
  12. 12.
    H. YAMAGI, H. KATAURA and YUEDA, J. Appl. phy. 75 (1994) 568.CrossRefGoogle Scholar
  13. 13.
    T. G. ABDEL-MALIK, A. A. AHEMED and J. SIMON, ibid. 54 (1990) 507.Google Scholar
  14. 14.
    K. N. NARAYANAN UNNI and C. S. MENON, J. Mater. Sci. Lett. 20 (2001) 1207.CrossRefGoogle Scholar
  15. 15.
    M. M. EL-NAHAS, Z. EL-GOHARY and H. S. SOLIMAN, Optics and Laser Technol. 35 (2003) 523.CrossRefGoogle Scholar
  16. 16.
    A. M. SALEH, A. K. HASSAN and R. D. GOULD, J. Phy. Che. Solids 64 (2003) 1297.CrossRefGoogle Scholar
  17. 17.
    T. G. ABDEL-MALIK and R. M. ABDEL-LATIF, Physica B205 (1995) 59.Google Scholar
  18. 18.
    T. S. SHAFAI and T. D. ANTHOPOULOS, Thin Solid Films 398 (2001).Google Scholar
  19. 19.
    M. S. ROY, G. D. SHARMA and S. G. SANGODKAR, Synthetic Metals 81 (1996) 159.CrossRefGoogle Scholar
  20. 20.
    V. R. ZAKAMOV, V. A. PANTELEEV, L. G. PAKHOMOV and G. L. PAKHOMOV, High Energy Chem. 36 (2002) 80.CrossRefGoogle Scholar
  21. 21.
    W. Y. GAO and A. KAHN, Appl. Phys. Lett. 79 (2001) 4040.CrossRefGoogle Scholar
  22. 22.
    A. M. SALEH, A. O. ABU-HILAL and R. D. GOULD, Curr. Appl. Phys. 3 (2003) 345.CrossRefGoogle Scholar
  23. 23.
    T. D. ANTHOPOULOS and T. S. SHAFAI, Thin Solid Films 64 (2003) 1217.Google Scholar
  24. 24.
    T. G. ABDEL MALIK, R. M. ABDEL-LATIF, A. E. EL-SAMAHY and S. M. KHALIL, Thin solid Films 256 (1995) 139.CrossRefGoogle Scholar
  25. 25.
    R. D. GOULD and A. K. HASSAN, Thin solid Films 193/194 (1990) 895.CrossRefGoogle Scholar
  26. 26.
    J. G. SIMMONS, J. Phys. D4 (1971) 613.Google Scholar

Copyright information

© Springer Science + Business Media, Inc. 2006

Authors and Affiliations

  1. 1.Thin Film Lab, School of Pure and Applied PhysicsMahatma Gandhi UniversityKottayamIndia

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