Abstract
We report the influence of 2.4 MeV proton irradiation on the photoluminescence (PL) of self-assembled InAs/InP quantum wires (QWRs) and quantum wells (QWs), which show PL emission at similar wavelengths. The proton irradiation leads to an extinction of the PL intensity and to a deterioration of the thermal stability of the PL both in QWR and QW samples. However, the QWRs tend to exhibit higher radiation hardness, especially at low temperatures and upon just above-bandgap excitation.
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