Exciton structure and dynamics in π-conjugated molecular wires.

ABSTRACT: Exciton and charge transport through π-conjugated oligomers and polymers is critical to the performance of organic electronic materials and essential for understanding carrier transport mechanisms on the nanoscale. This study applies photophysical methods to explore exciton structure and transport in π-conjugated molecules consisting of a diblock oligomer with terfluorene (F3) and tetrathiophene (T4) segments that are capped on either end with a boron dipyrromethene (BDP) unit. Two trichromophores were the focus of the investigation, F3T4BDP and T4F3BDP, where the sequence of the segments in the molecules is indicated by the acronyms. The molecules were probed by using steady-state and time-resolved absorption and fluorescence spectroscopy. Comparison of the absorption spectra of the trich

SUBMITTER: Duvva N 

PROVIDER: S-EPMC12419468 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature