J.-M. G rard, A. Izra l, D. Barrier, G. Bastard, Phys. Fig.1 Plan-view TEM images of InAs quantum dots in a GaAs matrix. Both markers represent 100nm. Note the preferential alignment of dots in rows parallel to . Arrows denote position of wetting layer and quantum dot facet.
Little markers indicate positions of superlattice interfaces.
At high excitation intensity the wetting layer appears in the spectrum. Dashed vertical lines give spectral positions of CL transients shown in Fig.10 . FWHM of individual dot spectra as a function of lattice temperature.