| abstract |
Electrophotographic light-sensitive unit has a light-sensitive layer containing butadiene derivative(s) of formula (I) as charge transfer substance on a conducting substrate. In (I), A = phenyl or naphthyl, optionally substituted by R<1> and/or R<2>; R<1>-R<4> = hydrogen, halogen, an optionally substituted alkyl, aryl or heterocyclic group, alkoxy, alkylamino, nitro or cyano; and R<5>, R<6> = CN or alkoxycarbonyl. |