Polymer gels template the assembly of rrP3HT into
micro/nanostructures in which the order and size of molecular domains
can be controlled by the crosslinking degree of the templating gel.
The PMMA network regulates the assembly of P3HT and limits the formation
of defects within NCs, if compared to solution processing. It is also
observed that a lower crystallinity of P3HT aggregates in the more
This approach could, in principle, be applied to other crystallizable
polymers, besides P3HT, with a strong tendency to self-organize. The
addition of this route to the current knowledge on microstructure
control by molecular design and processing, could be of help to the
design and realization of optimized all-organic systems for solar cells
and other applications.