M. S. de Holanda, R. Szostak, P. E. Marchezi, L. G. T. A. Duarte, J. C. Germino, T. D. Z. Atvars, A. F. Nogueira. In situ 2D perovskite formation and the impact of the 2D/3D structures on performance and stability of perovskite solar cells, Solar RRL 3, 1900199 (2019).