Journal of the American Chemical Society, Vol.143, No.2, 599-603, 2021
Improving Intramolecular Hopping Charge Transport via Periodical Segmentation of pi-Conjugation in a Molecule
The development of several-nanometer-scale it-conjugated systems for efficient intramolecular hopping charge transport remains a significant challenge. To construct localized electronic structures at the same energy in a molecule, a series of oligothiophenes, with lengths up to 10 nm and periodically twisted structures, was synthesized. Single-molecule conductance measurements of the twisted molecules revealed resistances lower than those of planar oligothiophenes. This study provides a rational molecular design to improve the intramolecular hopping charge transport in materials.