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Open Access item Excitons in coupled InAs/InP self-assembled quantum wires

Authors:Sidor, Y.
Partoens, B.
Peeters, F. M.
Ben, Teresa
Ponce, Arturo
Molina, Sergio I.
Sales, D. L.
Fuster, David
González, Luisa
González, Yolanda
Keywords:Excitons, Indium compounds, III-V semiconductors, Semiconductor quantum wires, Ground states, Excited states, Photoluminescence
Issue Date:29-Mar-2007
Publisher:American Physical Society
Citation:Physical Review B 75, 125120 (2007)
Abstract:Optical transitions in coupled InAs/InP self-assembled quantum wires are studied within the single-band effective-mass approximation including effects due to strain. Both vertically and horizontally coupled quantum wires are investigated and the ground state, excited states, and the photoluminescence peak energies are calculated. Where possible, we compare with available photoluminescence data from which it was possible to determine the height of the quantum wires. An anticrossing of the energy of excited states is found for vertically coupled wires signaling a change of symmetry of the exciton wave function. This crossing is the signature of two different coupling regimes.
Publisher version (URL):http://link.aps.org
Appears in Collections:(IMM-CNM) Artículos

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