Special Section on Infrared Sensors

Excitonic quasimolecules in nanosystems of quantum dots

[+] Author Affiliations
Sergey I. Pokutnyi

Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine, 17 General Naumov Street, Kyiv UA 03164, Ukraine

Opt. Eng. 56(9), 091603 (Jan 05, 2017). doi:10.1117/1.OE.56.9.091603
History: Received September 22, 2016; Accepted November 29, 2016
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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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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Sergey I. Pokutnyi
"Excitonic quasimolecules in nanosystems of quantum dots", Opt. Eng. 56(9), 091603 (Jan 05, 2017). ; http://dx.doi.org/10.1117/1.OE.56.9.091603


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