A new linear, D-A-D small molecule based on thiazolothiazole has been synthesized. It exhibits excellent thermal stability and relatively low HOMO level. By tuning donor to acceptor ratio and thermal annealing, photovoltaic devices based on the blend of this compound and PC71BM exhibited perfect phase separation sizes (10–20 nm) and balanced charge transport (electron mobility/hole mobility = 2:1), which leads to power conversion efficiencies as high as 3.73%, among the top reported for solution processed organic solar cells based on small molecules.
If you can't find a tool you're looking for, please click the link at the top of the page to "Go to old article view". Alternatively, view our Knowledge Base articles for additional help. Your feedback is important to us, so please let us know if you have comments or ideas for improvement.