Nanomaterials (May 2021)

Exciton-Related Raman Scattering, Interband Absorption and Photoluminescence in Colloidal CdSe/CdS Core/Shell Quantum Dots Ensemble

  • Grigor A. Mantashian,
  • Paytsar A. Mantashyan,
  • Hayk A. Sarkisyan,
  • Eduard M. Kazaryan,
  • Gabriel Bester,
  • Sotirios Baskoutas,
  • David B. Hayrapetyan

DOI
https://doi.org/10.3390/nano11051274
Journal volume & issue
Vol. 11, no. 5
p. 1274

Abstract

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By using the numerical discretization method within the effective-mass approximation, we have theoretically investigated the exciton-related Raman scattering, interband absorption and photoluminescence in colloidal CdSe/CdS core/shell quantum dots ensemble. The interband optical absorption and photoluminescence spectra have been revealed for CdSe/CdS quantum dots, taking into account the size dispersion of the ensemble. Numerical calculation of the differential cross section has been presented for the exciton-related Stokes–Raman scattering in CdSe/CdS quantum dots ensemble with different mean sizes.

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