Excitonic quasimolecules in nanosystems of quantum dots

Sergey I. Pokutnyi

doi:10.1117/1.OE.56.9.091603

5 January 2017 Excitonic quasimolecules in nanosystems of quantum dots

Sergey I. Pokutnyi

Author Affiliations +

Optical Engineering, Vol. 56, Issue 9, 091603 (January 2017). https://doi.org/10.1117/1.OE.56.9.091603

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.

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Sergey I. Pokutnyi "Excitonic quasimolecules in nanosystems of quantum dots," Optical Engineering 56(9), 091603 (5 January 2017). https://doi.org/10.1117/1.OE.56.9.091603

Received: 22 September 2016; Accepted: 29 November 2016; Published: 5 January 2017

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