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2008 | 114 | 5 | 1267-1271

Article title

Influence of Growth Break before Capping on Photoluminescence Dynamics of CdSe/ZnSe Self-Assembled Quantum Dots

Content

Title variants

Languages of publication

EN

Abstracts

EN
Influence of growth breaks before capping of CdSe self-assembled quantum dot layers on photoluminescence dynamics was examined in three samples. Short (5s) break resulted only in a small blue shift, caused probably by partial strain relaxation and/or Zn interdiffusion. Long (20 min) break induced a strong broadening and red shift of the spectra, combined with a dramatic slow down of the photoluminescence decays. The main result of the long break was identified as introduction of defects (impurities), which generate local electric fields and act as traps of photogenerated carriers.

Keywords

EN

Year

Volume

114

Issue

5

Pages

1267-1271

Physical description

Dates

published
2008-11
received
2008-06-07

Contributors

author
  • Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warszawa, Poland
  • Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warszawa, Poland
author
  • Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warszawa, Poland
author
  • Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warszawa, Poland
author
  • Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warszawa, Poland
author
  • Department of Physics, Korea University, Seoul 136-701, Korea
author
  • Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA

References

  • 1. K.P. Korona, P. Wojnar, J.A. Gaj, G. Karczewski, J. Kossut, J. Kuhl, Solid State Commun. 133, 369 (2005)
  • 2. J.H. Park, D.G. Choi, T.K. Lee, Eunsoon Oh, Sanghoon Lee, J.K. Furdyna, Appl. Phys. Lett. 90, 201916 (2007)
  • 3. J. Jasny, J. Sepioł, Chem. Phys. Lett. 273, 439 (1997)
  • 4. S. Maćkowski, Nguyen The Khoi, P. Kossacki, A. Golnik, J.A. Gaj, A. Lemaitre, C. Testelin, C. Rigaux, G. Karczewski, T. Wojtowicz, J. Kossut, J. Cryst. Growth 184/5, 966 (1998)
  • 5. S. Lee, I. Daruka, C.S. Kim, A.-L. Barabási, J.L. Merz, J.K. Furdyna, Phys. Rev. Lett. 81, 3479 (1998)

Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.bwnjournal-article-appv114n540kz
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