Preferences help
enabled [disable] Abstract
Number of results
2007 | 112 | 2 | 183-189
Article title

The Influence of Metastabilities on the Luminescence in the Cu(In,Ga)Se_2 Solar Cells

Title variants
Languages of publication
Photoluminescence and electroluminescence spectra of the absorber layer in ZnO/CdS/Cu(In,Ga)Se_2 solar cells were measured. Their dependence on temperature, excitation intensity and applied voltage were studied. Electroluminescence measurements were used to investigate light- and bias-induced metastabilities in the absorber of the cells. We showed that metastable changes of defect distributions, which produce an effect on the electrical characteristics of ZnO/CdS/Cu(In,Ga)Se_2 material, affect also the luminescence yield. The dependence of the intensity and shape of the electroluminescence spectra on the state of the sample is observed. These results fit well into the theoretical calculations of Lany and Zunger model showing that divacancy complex (V_{Se}-V_{Cu}) is responsible for metastable changes observed in ZnO/CdS/Cu(In,Ga)Se_2-based solar cells. We conclude that during light soaking or/and forward bias the probability of nonradiative recombination is decreased.
  • Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland
  • Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland
  • Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland
  • Uppsala University, Ångström Solar Center, Uppsala, Sweden
  • 1. M. Igalson, H.W. Schock, J. Appl. Phys., 80, 5765, 1996
  • 2. Th. Meyer, M. Schmidt, R. Harney, F. Engelhardt, O. Seifert, J. Parisi, M. Schmitt, U. Rau, in: Proc. 26th IEEE Photov. Specialists Conf., Anaheim (CA), Eds. J. Schmid, H.A. Ossenbrink, P. Helm, H. Ehmann, E.D. Dunlop, IEEE, New York 1997, p. 371
  • 3. M. Igalson, P. Zabierowski, Thin Solid Films, 361-362, 371, 2000
  • 4. J.T. Heath, J.D. Cohen, W.N. Shafarman, J. Appl. Phys., 95, 1000, 2004
  • 5. M. Schmitt, U. Rau, J. Parisi, W. Riedl, J. Rimmisch, F. Karg, in: Proc. 25th IEEE Photov. Specialists Conf., Washington, Ed. M.L. Timmons, IEEE, New York 1996, p. 909
  • 6. R.A. Sasala, J.R. Sites, in: Proc. 23rd IEEE Photov. Spec. Conf., Ed. K. Boer, IEEE, New York 1993, p. 543
  • 7. Th. Meyer, M. Schmidt, F. Engelhardt, J. Parisi, U. Rau, Eur. Phys. J., Appl. Phys. 8, 43, 1999
  • 8. S. Lany, A. Zunger, Phys. Rev. B, 72, 035215, 2005
  • 9. S. Lany, A. Zunger, J. Appl. Phys., 100, 113725, 2006
  • 10. M. Igalson, M. Cwil, M. Edoff, Thin Solid Films, 515, 6142, 2007
  • 11. J. Kessler, M. Bodegard, J. Hedstrom, L. Stolt, Sol. Energy Mat. and Solar Cells, 67, 67, 2001
  • 12. I. Dirnstorfer, Mt. Wagner, D.M. Hofmann, M.D. Lampert, F. Karg, B.K. Meyer, Phys. Status Solidi A, 168, 163, 1998
  • 13. A. Bauknecht, S. Siebentritt, J. Albert, M.Ch. Lux-Steiner, J. Appl. Phys., 89, 4391, 2001
  • 14. A.P. Levanyuk, V.V. Osipov, Sov. Phys. Usp., 24, 187, 1981
  • 15. M. Igalson, M. Bodegard, L. Stolt, A. Jasenek, Thin Solid Films, 431-432C, 153, 2003
Document Type
Publication order reference
YADDA identifier
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.