A.M. Levine, H. He, G. Bu, P. Ramos, F. Wu, A. Soliman, Js. Serrano, D. Pietraru, C. Chan, J. Batteas, M. Kowalczyk, S.J. Jang, B.L. Nannenga, M.Y. Sfeif, E.H.R. Tsai, and A.B. Braunschweig, Efficient Free Triplet Generation Follows Singlet Fission in Diketopyrrolopyrrole Polymorphs with Goldilocks Coupling, J. Phys. Chem. C, 2021, DOI: 10.1021/acs.jpcc.1c02737.
