No abstract

A smart strategy to significantly improve the energy conversion efficiency of the wide‐bandgap polymer P3HT blended in PCBM is demonstrated through NIR sensitization with a low‐bandgap polymer. An efficiency of over 4% is achieved by adding 30–40% of the low bandgap polymer Si‐PCPDTBT to the binary P3HT:PCBM blend, corresponding to an efficiency improvement of 25% compared to the P3HT:PCBM reference binary blend.

The transfer from P3HT based fullerene free OPV lab cells with IDTBR as acceptor material to fully solution processed roll-to-roll compatible modules is reported.

Krebs et al. Scalable, ambient atmosphere roll-to-roll manufacture of encapsulated large area, fl exible organic tandem solar cell modules