Long-Lived Charge Carrier Photogeneration in a Cooperative Supramolecular Double-Cable Polymer.

ABSTRACT: A newly designed C₃-symmetric disc-shaped chromophore, BTT(NDI)₃, features electron accepting naphthalene diimides linked to an electron donor BTT core. BTT(NDI)₃ self-assembles in apolar solvents into highly ordered, chiral supramolecular fibers through π-π and 3-fold hydrogen-bonding interactions. This leads to a cooperative formation of plane-to-plane stacking of BTTs and J-aggregation of the outer NDIs. Such a structure ensures high charge mobility. Only photoexcitation of BTT in the BTT(NDI)₃ polymers triggers a unidirectional electron transfer from BTT to NDI and results in (BTT^•+-NDI^•-) lifetimes that are by up to 3 orders of magnitude longer compared to (NDI^•+-NDI^•-) that is

SUBMITTER: Joseph J 

PROVIDER: S-EPMC11544610 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature