Understanding Quantum Confinement in Zero-Dimensional Nanostructures: Optical and Transport Properties
In zero-dimensional semiconductor nanostructures with motion confined in all directions, electronic states are discrete. In contrast, the spectrum of single-particle states in a quantum well or quantum-well wire is a set of subbands of two- or one-dimensional states, respectively. Each subband is a continuum of states. Because the single-particle spectrum for a zero-dimensional quantum box is discrete rather than a continuum, understanding confinement effects in these systems presents unique challenges not addressed for wells and wires.
KeywordsExciton State Coulomb Energy Confinement Energy Lateral Confinement Discrete Density
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