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0037497440
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note
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-2 (see Ref. 10), an aperture with φ = 80 nm contains on average no more than seven single QDs, which are clearly separated in PL energy due to different sizes and compositions.
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13
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16
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0035995528
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-2 used in the experiment, which ensures that the average number of excitons per dot is much smaller than one, we can exclude a PL contribution from the biexciton state. Likewise, a contribution of excited electronic states can be excluded since studies on similar dots have revealed sublevel splittings on the order of several tens of meV [see, e.g., M. Rambach et al., Phys. Status Solidi B 229, 503 (2002) or T. Flissikowski et al., Phys. Rev. Lett. 86, 3172 (2001)], i.e., a thermal occupation of excited states is not expected at T=2K.
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Rambach, M.1
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17
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0035794730
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-2 used in the experiment, which ensures that the average number of excitons per dot is much smaller than one, we can exclude a PL contribution from the biexciton state. Likewise, a contribution of excited electronic states can be excluded since studies on similar dots have revealed sublevel splittings on the order of several tens of meV [see, e.g., M. Rambach et al., Phys. Status Solidi B 229, 503 (2002) or T. Flissikowski et al., Phys. Rev. Lett. 86, 3172 (2001)], i.e., a thermal occupation of excited states is not expected at T=2K.
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0035855058
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21
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0001420731
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