J. Rodrigues, M. Felizardo, M. J. Soares, E. Alves, A. J. Neves, G. Tourbot, T. Auzelle, B. Daudin, M. Boćkowski, K. Lorenz, T. Monteiro, E-MRS Spring Meeting, Symposium K: Challenges for Group III Nitride Semiconductors for Solid State Lighting and Beyond, Lille, 26-30 May, France