Annealing effect on the structural properties of composite films based on Ge nanoparticles-doped Al2O3 layer P. Caldelas, A.G. Rolo, A. Chahboun, O. Conde, E. Alves, A.R. Ramos and M.J.M. Gomes ISSCN’07 - International School on Structural characterization of nanostructures, 25–27 January 2007, Aveiro, Portugal