Fine-tuning the assemblies of carbon nanodots and porphyrins

SCHARL, TOBIAS; STRAUSS, VOLKER; HAINES, PHILIPP; ATIENZA, CARMEN; VELA, SONIA; GULDI, DIRK M.; MARTÍN, NAZARIO; CADRANEL, ALEJANDRO; BERNHARDT, SARAH; GRÖHN, FRANZISKA

CHEMICAL COMMUNICATIONS

ROYAL SOC CHEMISTRY

Año: 2018

1359-7345

We present charge-transfer assemblies of electron accepting, pressure-synthesized carbon nanodots (pCNDs) and an electron donating porphyrin. Amidine derivatization of the porphyrin allows for hydrogen bonding interactions with the carboxyl groups in the surface of pCNDs, which drive the formation of the assembly. Upon photoexcitation, this electron donor-acceptor supramolecular construct features ultrafast charge separation, and subsequent charge recombination in 27 ps.