Singh – Electronic and optoelectronic properties of semiconductor structures

Argomenti del programma: Semiconductor bandstructures Bandstructure of group IV and compound (III-V, II-VI) semiconductors. Tight binding model of the bandstructure: implementation in Python. The k-dot-p model: bandgap dependence of the effective mass. Symmetry of conduction (valence) band minima (maxima) and their effect on selection rules for optical absorption: optical spin orientation .

Argomenti del programma: Semiconductor bandstructures Bandstructure of group IV and compound (III-V, II-VI) semiconductors. Tight binding model of the bandstructure: implementation in Python. The k-dot-p model: bandgap dependence of the effective mass. Symmetry of conduction (valence) band minima (maxima) and their effect on selection rules for optical absorption: optical spin orientation .

Argomenti del programma: Semiconductor bandstructures Bandstructure of group IV and compound (III-V, II-VI) semiconductors. Tight binding model of the bandstructure: implementation in Python. The k-dot-p model: bandgap dependence of the effective mass. Symmetry of conduction (valence) band minima (maxima) and their effect on selection rules for optical absorption: optical spin orientation .

Argomenti del programma: CONTENUTI (lista indicativa): - Introduzione e concetti di base, tra i quali: richiami di meccanica quantistica, struttura a bande in un materiale semiconduttore, modello Kroening-Pennig, concetto di massa efficace, concetto di densità di stati. - Il concetto di buca quantica: densità di stati in un sistema confinato, struttura delle sotto-bande, transizioni ottiche e regole di selezione, il concetto di eccitone,…