Self- assembly of Ge quantum dots in alumina matrix and formation of voids after thermal treatments Sara R. C. Pinto, Javier Martín-Sánchez, Maja Buljan, Sigrid Bernstorff, Anabela G. Rolo, Adil Chahboun, Marta M. D. Ramos, Maria J. M. Gomes 1ºENURS-1st Meeting of Synchrotron radiation Users from Portugal, CENIMAT, New University of Lisbon, Monte da Caparica, Portugal, 15 January 2012