%0 Journal Article %A Baladés, Nuria %A Herrera, Miriam %A Sales, D.L %A Fernández, Natalia %A Delgado, FJ %A Hernández-Maldonado, D %A Ramasse, Q %A González, M %A Tomasulo, S %A Abell, J %A Walters, R %A Molina, SI %T HAADF-STEM analysis of the composition distribution in InAlAsSb/InGaAs/InP layers for solar cells applications %D 2016 %@ 1435-8115 %U http://hdl.handle.net/10498/35176 %X In this communication, we analyse by transmission electron microscopy (TEM) the structural properties of an InAlAsSb/InGaAs/InP heterostructures grown by Molecular Beam Epitaxy (MBE). The photoluminescence emission of the samples grown at different temperatures shows the presence of subbandgap tail of states, suggesting the presence of compositional alloy variations in the quaternary InAlAsSb material. %~ Universidad de Cádiz