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Clustering in a self‐assembled CdTe/ZnTe quantum dot plane revealed by inter‐dot coupling
Author(s) -
Kazimierczuk T.,
Golnik A.,
Wojnar P.,
Gaj J. A.,
Kossacki P.
Publication year - 2010
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.200983255
Subject(s) - quantum dot , cadmium telluride photovoltaics , coupling (piping) , photoluminescence , heterojunction , cluster analysis , materials science , excitation , spectral line , optoelectronics , molecular physics , physics , condensed matter physics , quantum mechanics , mathematics , statistics , metallurgy
We study probability of coupling between randomly distributed quantum dots (QDs) in self‐assembled CdTe/ZnTe heterostructures grown with different thicknesses of CdTe formation layer. Photoluminescence excitation spectra reveal a number of QD pairs involved in inter‐dot energy transfer. The statistics of dot pairs was collected at numerous spots of samples. It shows that the observed coupling is more frequent than that expected for a uniform random distribution of QDs.