Phase segregation, Cu migration and junction formation in Cu(In, Ga)Se2 R. Herberholz, U. Rau, H. W. Schock, T. Haalboom, T. Gödecke, F. Ernst, C. Beilharz, K. W. Benz and D. Cahen Eur. Phys. J. AP, 6 2 (1999) 131-139 Published online: 15 May 1999 DOI: 10.1051/epjap:1999162