Abstract
In the nanomaterials world, the nanofibers elaboration from conjugated polymers is an attractive subject for the evolution of nano-optoelectronic devices. PVK-F8T2 nanostructures have been elaborated using the wetting template method in nanoporous membranes with an easy all-in-chlorobenzene solvent copolymer route. Nanofibers were obtained from a recently synthesized PVK-F8T2 block copolymer. The photoemission properties have been examined by steady-state and time-resolved photoluminescence (PL) spectroscopies. The evolution from condensed matter to nanoscale morphology leads to changes in photoemissive properties. PVK-F8T2 nanofibers exhibit blue-shifted emission, and a longer exciton average lifetime compared to PVK-F8T2 films. These effects are attributed to the cancellation of interchain interactions, which are consistent with nanoscale tubular structures formed from isolated short copolymer chain segments.
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