Applied Physics B

, Volume 87, Issue 2, pp 311–315 | Cite as

Fast photoluminescence decay processes of doped ZnO phosphors



Lifetime measurements have been carried out for ZnO doped with killer impurities (Fe, Co or Ni) having doping concentrations 0.05 to 1.00% by weight using a pulsed UV laser (nitrogen laser) as the excitation source having a short pulse width and a high photon flux density. The high photon flux density of the laser is very useful to excite the short-lived shallow trapping states which otherwise would be impossible to excite. Fast photoluminescence emission in the microsecond time domain has been obtained due to killer impurities at room temperature. The effect of killer dopants as well as the effect of their concentrations on lifetime values has been observed. Other optical parameters such as trap depth and decay constant are also reported in the present context. Lifetime values are found to be in the microsecond time domain and a reverse trend is obtained with increase in concentration of killer impurities.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    K. Ueda, H. Tabat, T. Kawai, Appl. Phys. Lett. 79, 988 (2001)CrossRefADSGoogle Scholar
  2. 2.
    K. Sato, H.K. Yoshida, Semicond. Sci. Technol. 17, 376 (2002)CrossRefGoogle Scholar
  3. 3.
    C. Boemare, T. Monteiro, J.G. Guilherme, E. Alves, Physica B 308, 985 (2001)CrossRefADSGoogle Scholar
  4. 4.
    K. Vanheusden, W.L. Warren, C.H. Seager, D.R. Tallant, J.A. Voigt, B.E. Gnade, J. Appl. Phys. 79, 7983 (2001)CrossRefADSGoogle Scholar
  5. 5.
    D.C. Look, D.C. Reynolds, C.W. Litton, R.L. Jones, D.B. Eason, G. Cantwell, Appl. Phys. Lett. 81, 1830 (2002)CrossRefADSGoogle Scholar
  6. 6.
    E. Alves, K. Lorentz, R. Vianden, C. Boemare, M.J. Soares, T. Monteiro, Mod. Phys. Lett. B 28, 1281 (2001)CrossRefADSGoogle Scholar
  7. 7.
    K. Thonke, T. Gurber, N. Teofilov, R. Schonefelder, A. Waag, R. Sauer, Physica B 308, 945 (2001)CrossRefADSGoogle Scholar
  8. 8.
    P. Dahan, V. Fleurov, P. Thurian, R. Heitz, A. Hoffmann, I. Broser, J. Phys. 10, 2007 (1998)Google Scholar
  9. 9.
    R. Dingle, Phys. Rev. Lett. 23, 579 (1969)CrossRefADSGoogle Scholar
  10. 10.
    T. Monteiro, C. Boemare, M.J. Soares, E. Rita, E. Alves, J. Appl. Phys. 93, 8995 (2003)CrossRefADSGoogle Scholar
  11. 11.
    N.Y. Garces, L. Wang, L. Bai, N.C. Giles, L.E. Halliburton, G. Cantwell, Appl. Phys. Lett. 81, 622 (2002)CrossRefADSGoogle Scholar
  12. 12.
    G.A. Slack, B.M. O’Meara, Phys. Rev. 163, 187 (1967)CrossRefGoogle Scholar
  13. 13.
    J.V. Smith, Feldspar Minerals, vol. 1, Crystal Structure and Physical Properties (Springer, Heidelberg, 1974), p. 558Google Scholar
  14. 14.
    J.E. Greake, G. Walker, Infrared and Raman Spectroscopy of Lunar and Terrestrial Minerals (Academic Press, New York, 1975), p. 73Google Scholar
  15. 15.
    L.F. Johnson, R.E. Dietz, H.J. Guggenheim, Appl. Phys. Lett. 5, 21 (1964)CrossRefGoogle Scholar
  16. 16.
    J.B. Gruber, A. Kennedy, B. Zandi, J.A. Hutchinson, Proc. SPIE 3928, 142 (2000)CrossRefADSGoogle Scholar
  17. 17.
    J.B. Gruber, T.A. Reynolds, T. Alekel, D.K. Sardar, B. Zandi, D.A. Keszler, Phys. Rev. B 64, 45111 (2001)CrossRefADSGoogle Scholar
  18. 18.
    C. Bauer, G. Boschloo, E. Mukhtar, A. Hagfeldt, Chem. Phys. Lett. 387, 176 (2004)CrossRefGoogle Scholar
  19. 19.
    P.V. Kamat, B. Patrick, J. Phys. Chem. 96, 6829 (1992)CrossRefGoogle Scholar
  20. 20.
    H.C. Zhang, Acta Phys. Sin. 49, 1171 (2000)Google Scholar
  21. 21.
    H.S. Bhatti, R. Sharma, N.K. Verma, S.R. Vadera, K. Manzoor, J. Phys. D 39, 1754 (2006)CrossRefADSGoogle Scholar
  22. 22.
    H.S. Bhatti, A. Gupta, N.K. Verma, S. Kumar, J. Mater. Sci. Mater. Electron. 17, 281 (2006)CrossRefGoogle Scholar
  23. 23.
    A. Gupta, H.S. Bhatti, D. Kumar, N.K. Verma, R.P. Tandon, Dig. J. Nanomater. Biostruct. 1, 1 (2006)Google Scholar
  24. 24.
    H.S. Bhatti, R. Sharma, N.K. Verma, Physica B 382, 38 (2006)CrossRefADSGoogle Scholar

Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  1. 1.Department of PhysicsPunjabi UniversityPatialaIndia
  2. 2.Thapar Institute of Engineering and TechnologySPMSPatialaIndia

Personalised recommendations