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2001
Conference Paper
Title
Alpha particle induced luminescence from multiple quantum wells
Other Title
Alphateilchen induzierte Lumineszenz von Multi-Quantenfilmen
Abstract
The luminescence induced by alpha particles in GaAs/Al(0.35)Ga(0.65)As multiple quantum well (MQW) semiconductor was detected and investigated. The luminescence was observed at liquid nitrogen and at room temperatures as light flashes induced by individual alpha-particles. The MQW samples studied, in addition, were investigated using standard photoluminescence method to show that alpha-particle created flashes are associated with the radiative decay of 2D excitons in quantum wells. Since the number of detected light quanta in a flash is critical, a discussion of the collection efficiency of photons created by a single alpha-particle is presented.
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