Key points are not available for this paper at this time.
Time-resolved differential transmission measurements of self-assembled In₀. ₄Ga₀. ₆As quantum dots clearly indicate a phonon bottleneck between the n0ex{0ex}=0ex{0ex}2 and n0ex{0ex}=0ex{0ex}1 electronic levels. The key to this observation is the generation of electrons in dots where there are no holes so that electron-hole scattering does not mask the bottleneck. We use a simple carrier capture model consisting of two capture configurations to explain the bottleneck signal and offer arguments to rule out other possible sources of the signal.
Urayama et al. (Mon,) studied this question.