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Spectral selection of excitonic transitions in a dense array of CdSe/ZnSe quantum dots
Author(s) -
Shubina T. V.,
Rodina A. V.,
Semina M. A.,
Golovatenko A. A.,
Toropov A. A.,
Rakhlin M. V.,
Sedova I. V.,
Sorokin S. V.,
Gronin S. V.,
Sitnikova A. A.,
Kuritsyn D. I.,
Sergeev S. M.,
Krasil'nik Z. F.,
Ivanov S. V.
Publication year - 2016
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201600095
Subject(s) - quantum dot , excited state , optoelectronics , materials science , selection (genetic algorithm) , transmission electron microscopy , quantum , physics , nanotechnology , computer science , atomic physics , quantum mechanics , artificial intelligence
Abstract Abstractauthoren We demonstrate that the selection of a limited number of single excitonic lines from a dense array of epitaxial quantum dots (QDs) can be realized spectrally via resonant energy transfer from a huge number of small QDs toward a limited set of large nano‐islands through their excited levels. Optical and transmission electron microscopy studies support this mechanism. Theoretical modeling describes the architecture of quantum levels in the array of CdSe/ZnSe QDs, which enables such a spectral selection. Schematic of resonant energy transfer between QDs shown together with a plan‐view TEM image of a QD array.