Effect of carrier transfer on the PL intensity in self-assembled In (Ga) As/GaAs quantum ringsW. Ouerghui, J. Martinez-Pastor, J. Gomis, A. Melliti, M. A. Maaref, D. Granados and J. M. GarciaEur. Phys. J. Appl. Phys., 35 3 (2006) 159-163DOI: https://doi.org/10.1051/epjap:2006088