Home News Press Releases The role of Sodium for the Enhancement of Solar Cells Publications of Paulo J. Ferreira All genres Journal Article (1) Journal Article (1) 1. Journal Article Robertson, I. M.; Ferreira, P. J.; Dehm, G.; Hull, R. V.; Stach, E. A.: Visualizing the behavior of dislocations - Seeing is believing. MRS Bulletin 33 (2), pp. 122 - 131 (2008) MPG.PuRe DOI