J-aggregation in porphyrin nanoparticles induced by diphenylalanine

TPPtFFC was synthesized and self-assembled into regular nano-architectures. Photophysical property studies of the nanoparticles indicate the porphyrin molecules form typical J-aggregates. The diprotonation of the porphyrin core and the FF group play an indispensible role in the formation of J-aggregates.167