A CROSS-LINKING MOIETY

摘要

A cross-linkin moiety having a structure represented by formula (I) or (II): Wherein: ArF comprises a fluorinated phenyl group having at least one non-fluorine substituent (R) that is bulkier than fluorine and which is located at the meta position relative to the N3 group; W comprises an electron-withdrawing group; and L comprises a linker group. The cross-linking moiety is particularly useful in the manufacture of polymer semiconductor layers and photovoltaic devices.