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Photoluminescence from cadmium sulfide nanoclusters formed in the matrix of a Langmuir-Blodgett film

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Abstract

Photoluminescence (PL) from CdS nanoclusters formed in the matrix of a Langmuir-Blodgett film and from the same clusters with the matrix removed has been studied. The PL spectrum of clusters in the matrix has the form of a broad band (full width at half-maximum (FWHM) ∼ 0.6 eV) peaked at 2.4 eV. After removing the matrix with hexane, the PL spectrum consists of a high-energy band at 2.9 eV (FWHM ∼ 0.2 eV) and two low-energy bands at 2.4 and 2.0 eV (FWHM ∼ 0.5 eV). The high-energy band is attributed to exciton recombination in the nanoclusters, and the bands at 2.4 and 2.0 eV, to recombination via levels related to defects in the bulk of the matrix and at the nanocluster-matrix interface, respectively.

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Authors and Affiliations

  1. Institute of Semiconductor Physics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia

    E. A. Bagaev, K. S. Zhuravlev, L. L. Sveshnikova, I. A. Badmaeva & S. M. Repinskii

  2. Research Center Rossendorf, Institute of Ion Beam Physics and Materials Research, 01314, Dresden, Germany

    M. Voelskow

Authors
  1. E. A. Bagaev
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  2. K. S. Zhuravlev
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  3. L. L. Sveshnikova
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  4. I. A. Badmaeva
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  5. S. M. Repinskii
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  6. M. Voelskow
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__________

Translated from Fizika i Tekhnika Poluprovodnikov, Vol. 37, No. 11, 2003, pp. 1358–1362.

Original Russian Text Copyright © 2003 by Bagaev, Zhuravlev, Sveshnikova, Badmaeva, Repinski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \), Voelskow.

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Bagaev, E.A., Zhuravlev, K.S., Sveshnikova, L.L. et al. Photoluminescence from cadmium sulfide nanoclusters formed in the matrix of a Langmuir-Blodgett film. Semiconductors 37, 1321–1325 (2003). https://doi.org/10.1134/1.1626217

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  • DOI: https://doi.org/10.1134/1.1626217

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