| 摘要 |
An improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate wherein the photoconductive element has a) a charge transport material with the following formula where R1 and R2 are, independently, a carbazolyl group, an (N,N-disubstituted) aminoaryl group, such as a triphenyl amine group, or a julolidine group, and R3 and R4 are, independently, hydrogen, branched or linear alkyl group (e.g., a C1-C20 alkyl group), branched or linear unsaturated hydrocarbon group, cycloalkyl group (e.g. cyclohexyl group), or aryl group (e.g., phenyl group, naphthyl group, stilbenyl group, (9H-fluoren-9-ylidene)benzyl group, or tolanyl group); (b) an optional charge transport compound; and (c) a charge generating compound.
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