Synthesis and Photoresponse Properties of Tricyanovinylized Polysilane

To broaden its photoresponse window, the new polysilane 2 with a pendant (tricyanovinyl)aniline group has been prepared by a facile post-tricyanovinylation reaction of the N, N -dialkylaniline-substituted polysilane precursor 1 . A steady-state photoconductivity study showed that polysilane 2 has an extended photoresponse region from the traditional ultraviolet to the visible region compared with polysilane 1 .