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Carrier-Phonon Interaction in Semiconductor Quantum Dots
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Other Titles: | Elektron-Phonon Wechselwirkung in Halbleiter-Quantenpunkten | Authors: | Seebeck, Jan | Supervisor: | Jahnke, Frank | 1. Expert: | Jahnke, Frank | 2. Expert: | Schneider, Hans Christian | Abstract: | The goals of this PhD thesis are theoretical investigations of carrier scattering processes in semiconductor quantum dots on a quantum-kinetic basis. A consistent treatment of quasi-particle renormalizations and carrier kinetics for non-equilibrium conditions is presented, using the framework of non-equilibrium Green's functions. The focus of our investigations is the interaction of carriers with LO phonons. Starting from a detailed study of quantum-dot polarons, scattering and dephasing processes are studied. For the optical response of semiconductor quantum dots a consistent treatment of the carrier-LO-phonon and the carrier-carrier interaction is presented. Finally, the combination of an tight-binding description of the single-particle properties with a many-body theory is demonstrated for nitride quantum dots where intrinsic material properties are of central importance. |
Keywords: | semiconductor quantum dots, carrier-phonon interaction, polarons, carrier kinetics, optical properties, non-equilibrium Green's functions | Issue Date: | 10-Mar-2009 | Type: | Dissertation | URN: | urn:nbn:de:gbv:46-diss000113931 | Institution: | Universität Bremen | Faculty: | FB1 Physik/Elektrotechnik |
Appears in Collections: | Dissertationen |
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