Home News Press Releases Dr. Yan Ma receives Walter Benjamin Grant of the German Research Foundation Publications of Stefan G. Haass All genres Journal Article (1) Journal Article (1) 1. Journal Article Andres, C.; Schwarz, T.; Haass, S. G.; Weiss, T. P.; Carron, R.; Caballero, R.; Figi, R.; Schreiner, C.; Bürki, M.; Tiwari, A. N. et al.; Romanyuk, Y. E.: Decoupling of optoelectronic properties from morphological changes in sodium treated kesterite thin film solar cells. Solar Energy 175, pp. 94 - 100 (2018) MPG.PuRe DOI