Author/Authors :
S Sanguinetti، نويسنده , , M Gurioli، نويسنده , , T Kuroda، نويسنده , , K Watanabe، نويسنده , , T Tateno، نويسنده , , F Minami، نويسنده , , M Wakaki، نويسنده , , N Koguchi، نويسنده ,
Abstract :
We present time resolved photoluminescence measurements of GaAs/Al0.3Ga0.7 As quantum dot structures where no wetting layer is connecting the dots. We show that the two-dimensional character of the wetting layer is not relevant in determining the quantum dot capture, in contrast with the conclusions of several models so far presented in the literature.