Aqueous processing exposed for low bandgap polymers requiring high boiling solvents.
Synthesis of PCDTBT:PC71BM nanoparticles (NPs) with excellent composition control.
A solar cell reaching a PCE of 1.9% was achieved using the water-based blend NPs.
Analytical electron microscopy study reveals fine mixing at the molecular level.
Nanomorphology of the photoactive layer reflects the morphology of individual NPs.