| abstract |
Improved organophotoreceptors comprise: n n(a) a charge transport compound having the formula n nwhere n is an integer from 0 to 1; X is an (N,N-disubstituted)arylamine group; Ar is an aryl group or a heterocyclic group; n A is a first linking group with the formula —(CH 2 ) p — which can be branched or linear, where p is an integer from 3 to 20 inclusive and where one or more methylene groups can be optionally replaced by O, S, a carbonyl group, urethane, urea, an ester group, a —NR 16 group, a CHR 17 group, or a CR 18 R 19 group where R 16 , R 17 , R 18 and R 19 are, independently, H, hydroxyl, thiol, an amine group, an alkyl group, an alkaryl group, an aryl group, or part of a ring; and B is a second linking group having the formula -Q-Z-Q′-, where Q and Q′ are, independently, O, S, or NR 1 , where R 1 is an H, an alkyl group, an alkaryl group or an aryl group, and Z comprises a heterocyclic group; (b) a charge generating compound; and (c) an electrically conductive substrate over which said charge transport compound and said charge generating compound are located. |