Nanocomposites of gold and poly(3-hexylthiophene) containing fullerene moieties: Synthesis, characterization and application in solar cells

► New nanocomposites based on P3HT, C60 and gold nanoparticles were synthesized. ► Functionalized C60 was covalently linked to P3HT chains. ► The presence of C60 affects the size and the concentration of gold nanoparticles. ► The nanocomposites were applied as sensitizers or co-sensitizers in solar cells. ► Using ternary-based nanocomposites enhanced the photocurrent of devices.