Abstract
Electron and hole states are studied in quantum well wires (QWWs) with arectangular cross section. A theoretical approach is developed,within which the electronic properties of a single QWW as well as offinite and infinite planar lattices of QWWs are analysed. It is demonstratedthat the ratio of effective masses in the well and in the barrier influencesthe dispersion law of the electron motion along the QWWaxis. A six-wire lattice is studied in detail. Edge states, whichcan be observed in optical spectra, are revealed, when the barrierheights are different inside and outside the lattice. The minibandstructure is investigated for an infinite lattice of QWWs.The evolution of electron states is analysed whenthe number of QWWs in the lattice increases:1→6→∞. The calculated electron-hole pair energiesare in a good agreement with the experimental data on photoluminescencein the Ga0.47In0.53As/InP QWW.
Published Version
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