Abstract:Summary. --Exciton dynamics including thermalisation, radiative recombination and migration in growth-interrupted and hydrogen-passivated GaAs/A1As single quantum wells have been investigated under non-resonant and resonant excitation. Exciton recombination, thermalisation, migration and localisation play important roles at low temperatures in quantum well (QW) structures. Since excitons are readily trapped by impurities and interface defects, an investigation of intrinsic excitonic properties requires high-qu… Show more
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