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Coulomb Interaction and Wannier-Mott Excitons in Polar Semi-Conducting Quantum Wires

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Abstract:

Under theoretical investigation are the Coulomb interaction and exiton Wannier-Mott states in polar semi-conducting quantum wires in the dielectric environment. It is shown that alongside the effects of dimensional (geometrical) and dielectric intensification of Coulomb interaction between the electron and the hole there takes place an extra effect of exiton binding energy growth conditioned by the "loss" of part of inertial screening. Estimations have been done of the shifting of exiton peaks, caused by this effect, in the optical spectrum for quantum wires of cadmium selenide and gallium arsenide in the dielectric matrix.

Keywords: COULOMB INTERACTION; QUANTUM WIRES; WANNIER-MOTT EXCITONS

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jno.2009.1016

Publication date: April 1, 2009

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  • Journal of Nanoelectronics and Optoelectronics (JNO) is an international and cross-disciplinary peer reviewed journal to consolidate emerging experimental and theoretical research activities in the areas of nanoscale electronic and optoelectronic materials and devices into a single and unique reference source. JNO aims to facilitate the dissemination of interdisciplinary research results in the inter-related and converging fields of nanoelectronics and optoelectronics.
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