摘要
Star nonfullerene acceptors like ITIC[1],IDIC[2],O-IDTBR[3],IT-4 F[4],COi8 DFIC[4],Y6[6]etc.continuously emerge and keep pushing the power conversion efficiency(PCE)of organic solar cells forward.These small molecules generally show narrow bandgaps,excellent visible to NIR light-harvesting capability,good electron mobility.
基金
supported by the National Key Research and Development Program of China(2017YFA0206600,SQ2020YFE010701)
the National Natural Science Foundation of China(51773045,21772030,51922032,21961160720,51473053)
the Natural Science Foundation of Hunan Province(2019JJ50603)。