@article {4120,
	title = {A Mixed-Cation Lead Mixed-Halide Perovskite Absorber for Tandem Solar Cells},
	journal = {Science},
	volume = {351},
	year = {2016},
	doi = {doi.org/10.1126/science.aad5845 },
	author = {McMeekin, D. P. and Sadoughi, G. and Rehman, W. and Eperon, G. E. and Saliba, M. and H{\"o}rantner, M. T. and Haghighirad, A. and Sakai, N. and Korte, L. and Rech, B. and Johnston, M. B. and Herz, L. M. and Snaith, H. J.}
}
