Anisotropic Conjugated Polymer Chain Conformation Tailors the Energy Migration in Nanofibers.

ABSTRACT: Conjugated polymers are complex multichromophore systems, with emission properties strongly dependent on the electronic energy transfer through active subunits. Although the packing of the conjugated chains in the solid state is known to be a key factor to tailor the electronic energy transfer and the resulting optical properties, most of the current solution-based processing methods do not allow for effectively controlling the molecular order, thus making the full unveiling of energy transfer mechanisms very complex. Here we report on conjugated polymer fibers with tailored internal molecular order, leading to a significant enhancement of the emission quantum yield. Steady state and femtosecond time-resolved polarized spectroscopies evidence that excitation is directed toward those chromo

SUBMITTER: Camposeo A 

PROVIDER: S-EPMC5133673 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature