Excition states in semiconductor quantum dots in the modified effective mass approximation

Journal Article · Thu Nov 15 00:00:00 EST 2007 · Semiconductors

DOI:https://doi.org/10.1134/S1063782607110097· OSTI ID:21087965

Pokutnyi, S. I. ^[1]

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1. National Academy of Sciences of Ukraine, Kurdyumov Institute of the Physics of Metals (Ukraine), E-mail: [e-mail]

A new modified effective mass approximation is suggested to describe the excitonic energy spectrum of quantum dots of radii a comparable to the exciton Bohr radius a{sub ex}{sup 0}. It is shown that, for quantum dots simulated by infinitely deep potential wells, the effective mass approximation is appropriate for describing excitons in quantum dots of radii a {approx} a{sub ex}{sup 0}, if the reduced effective mass of the excitons, {mu}, is considered as a function of the radius of the quantum dot a, {mu} = {mu}(a)

• OSTI ID: 21087965
• Journal Information: Semiconductors, Vol. 41, Issue 11; Other Information: DOI: 10.1134/S1063782607110097; Copyright (c) 2007 Nauka/Interperiodica; Article Copyright (c) 2007 Pleiades Publishing, Ltd; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7826
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
EFFECTIVE MASS
ENERGY SPECTRA
EXCITONS
QUANTUM DOTS
SEMICONDUCTOR MATERIALS
SIMULATION