Tamarat, P., Hou, L., Trebbia, J. B., Swarnkar, A., Biadala, L., Louyer, Y., … Lounis, B. (2020). The dark exciton ground state promotes photon-pair emission in individual perovskite nanocrystals. Nature Communications, 11(1), 6001 (8 pp.). https://doi.org/10.1038/s41467-020-19740-7