SOTOME(A03) et al. have published their research about “negative exciton diffusion” in a thermally activated delayed fluorescence (TADF) material in J. Phys. Chem. Lett.

Spin-Dependent Exciton Transport and Effective Negative Diffusion in Thermally Activated Delayed Fluorescence Crystals

H. Yoneda, Y. Yasuda, R. Okumura, S. Ito, H. Miyasaka, H. Kaji, H. Sotome

DOI: 10.1021/acs.jpclett.5c02484