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2009 | 116 | 1 | 88-90
Article title

Resonant Raman Spectra of CdTe/ZnTe Self Assembled Quantum Dots

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Abstracts
EN
In this paper we present Raman scattering and photoluminescence spectra measured on CdTe/ZnTe self assembled quantum dots. The photoluminescence spectrum has shown two main emission peaks, both connected with existing of quantum dots. One presents direct deexcitation to ground state and the other is optical phonon (οmega = 207.3 cm^{-1})-assisted deexcitation. The registered multiphonon emission process depends on temperature. At low temperature phonon spectra shows line at 450 cm^{-1} (TA + 2LO in ZnTe) and 595 cm^{-1} (2LO + TO(Γ) in ZnTe).
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Contributors
author
  • Institute of Physics, Pregrevica 118, 11080 Belgrade, Serbia
author
  • Institute of Physics, Pregrevica 118, 11080 Belgrade, Serbia
author
  • Institute of Physics, Pregrevica 118, 11080 Belgrade, Serbia
  • Institute of Physics, Pregrevica 118, 11080 Belgrade, Serbia
author
  • Faculty of Mining and Geology, P.O. Box 162, 11000 Belgrade, Serbia
author
  • Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland
author
  • Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland
References
  • 1. S. Mackowski, Thin Solid Films 412, 96 (2002)
  • 2. S. Mackowski, G. Karczewski, T. Wojtowicz, J. Kossut, S. Kret, P. Dluzewski, Appl. Phys. Lett. 78, 3884 (2001)
  • 3. A.A. Arora, M. Rajalakshmi, T.R. Ravindran, V. Sivasubramanian, J. Raman Spectrosc. 38, 604 (2007)
  • 4. M. Tkach, V. Holovatsky, O. Voitsekhivska, M. Mikhalyova, Phys. Status Solidi B 203, 373 (1997)
  • 5. S.L. Zhang, Y.T. Hou, M.Y. Shen, J. Li, S.X. Yuan, Phys. Rev. B 47, 12937 (1993)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv116n120kz
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