Roll‐to‐Roll Coatings: New Low‐Bandgap Materials with Good Stabilities and Efficiencies Comparable to P3HT in R2R‐Coated Solar Cells (Adv. Energy Mater. 4/2012)

Organic solar cells have reached the large-scale manufacturing stage. If extremely cheap high-throughput production is to be realized, they have to be manufactured in ambient conditions without the use of vacuum steps. Despite enormous efforts put into developing new low-bandgap (LBG) polymers, until now, the only real candidate which has been stable enough for processing in air has been the well known polymer P3HT. On page 415 R. Søndergaard and co-workers present two new LBG polymers stable enough for processing using roll-to-roll methods.