Abstract:Two different approaches of contactless modulated reflectivity spectroscopy, namely photoreflectance (PR) and contactless electroreflectance (CER), have been used for the investigation of quasi 0D self‐assembled semiconductor structures, like quantum dots or quantum dashes. First of all, the advantages and disadvantages of both techniques are discussed with respect to that certain application, including the problems of spurious background signals and below‐band‐gap oscillations. Second, the modulation mechanis… Show more
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