Perovskite-perovskite tandem photovoltaics with optimized band gaps

著者: Giles E. Eperon, Tomas Leijtens, Kevin A. Bush, Rohit Prasanna, Thomas Green, Jacob Tse‐Wei Wang, David P. McMeekin, George Volonakis, Rebecca L. Milot, Richard May, Axel F. Palmstrom, Daniel J. Slotcavage, Rebecca A. Belisle, Jay B. Patel, Elizabeth S. Parrott, Rebecca J. Sutton, Wen Ma, Farhad Moghadam, Bert Conings, Aslihan Babayigit, H.‐G. Boyen, Stacey F. Bent, Feliciano Giustino, Laura M. Herz, Michael B. Johnston, Michael D. McGehee, Henry J. Snaith - Science 2016 被引用: 1,495

material, we achieve monolithic two-terminal tandem efficiencies of 17.0% with >1.65-volt open-circuit voltage. We also make mechanically stacked four-terminal tandem cells and obtain 20.3% efficiency. Notably, we find that our infrared-absorbing perovskite cells exhibit excellent thermal and atmospheric stability, not previously achieved for Sn-based perovskites. This device architecture and materials set will enable "all-perovskite" thin-film solar cells to reach the highest efficiencies in the long term at the lowest costs.