Influence of Configuration Mixing on Energies and Recombination Dynamics of Excitonic States in CdTe/ZnTe Quantum Dots |
| T. Smoleńskia, P. Wojnar c, K. Fronc c, M. Korkusiński d and P. Hawrylak d
aInstitute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland bGrenoble High Magnetic Field Laboratory, CNRS, BP 166, 38042 Grenoble Cedex 9, France cInstitute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland dInstitute for Microstructural Sciences, National Research Council of Canada, Ottawa, K1A OR6, Canada |
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| We study experimentally and theoretically excitonic recombination processes in CdTe/ZnTe quantum dots. The single quantum dot photoluminescence spectrum was observed and emission lines from X, X-, X+ and 2X excitonic states were identified. Experimental results were analysed in the theoretical model based on the effective mass approximation. Numerical calculations of energy positions and recombination probabilities of X, X-, X+ and 2X were performed. Computed results reproduce correctly the order and relative positions of emission lines and ratios of radiative lifetimes. |
| DOI: 10.12693/APhysPolA.119.615 PACS numbers: 78.67.Hc, 78.55.Et |