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Optical Engineering

Excitonic quasimolecules in nanosystems of quantum dots
Author(s): Sergey I. Pokutnyi
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Paper Abstract

The theory of excitonic quasimolecules (biexcitons) (formed of spatially separated electrons and holes) in a nanosystem that consists of semiconductor quantum dots synthesized in a borosilicate glass matrix is presented. It is shown that exciton quasimolecule formation is of a threshold character and is possible in nanosystem, if the spacing between the quantum dots surfaces is larger than a certain critical spacing. It was found that the binding energy of the singlet ground state of an exciton quasimolecule, consisting of two semiconductor quantum dots is a significant large values, larger than the binding energy of the biexciton in a semiconductor single crystal by almost two orders of magnitude.

Paper Details

Date Published: 5 January 2017
PDF: 7 pages
Opt. Eng. 56(9) 091603 doi: 10.1117/1.OE.56.9.091603
Published in: Optical Engineering Volume 56, Issue 9
Show Author Affiliations
Sergey I. Pokutnyi, Chuiko Institute of Surface Chemistry (Ukraine)

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