Benhaddou, N., Aazou, S., Sánchez, Y., Andrade-Arvizu, J., Becerril-Romero, I., Guc, M., Giraldo, S., Izquierdo-Roca, V., Saucedo, E., Sekkat, Z. "Investigation on limiting factors affecting Cu2ZnGeSe4 efficiency: Effect of annealing conditions and surface treatment" Solar Energy Materials and Solar Cells 216, pp. 110701 - 2020 DOI: 10.1016/j.solmat.2020.110701