Figure 4.
PL band asymmetry measured as difference
, δ = E − Emax for various temperatures. It is seen that low-temperature (T = 10 K) asymmetry is positive. The change of asymmetry sign evidences the appearance
of the e1 − hh2 QD transition and the predominant temperature population of the shallow QD states
at high temperatures
Mazur et al. Nanoscale Research Letters 2010 5:991 doi:10.1007/s11671-010-9590-5 |