Andrade-Arvizu J., Izquierdo-Roca V., Becerril-Romero I., Vidal-Fuentes P., Fonoll-Rubio R., Sánchez Y., Placidi M., Calvo-Barrio L., Vigil-Galán O., Saucedo E. "Is It Possible to Develop Complex S-Se Graded Band Gap Profiles in Kesterite-Based Solar Cells?" ACS Applied Materials and Interfaces 11, 36, pp. 32945 - 32956. 2019 DOI: 10.1021/acsami.9b09813