Organophotoreceptor with charge transport material with a hydrazone group linked to a heterocyclic group
申请人:Jubran Nusrallah
公开号:US20050095519A1
公开(公告)日:2005-05-05
Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising:
(a) a charge transport material having the formula
where n is an integer between 2 and 6, inclusive;
R
1
and R
2
are, independently, H, an alkyl group, an alkaryl group, or an aryl group;
X is a linking group having the formula —(CH
2
)
m
—, branched or linear, where m is an integer between 0 and 20, inclusive, and one or more of the methylene groups is optionally replaced by O, S, C═O, O═S═O, a heterocyclic group, an aromatic group, urethane, urea, an ester group, a NR
3
group, a CHR
4
group, or a CR
5
R
6
group where R
3
, R
4
, R
5
, and R
6
are, independently, H, hydroxyl group, thiol group, an alkyl group, an alkaryl group, a heterocyclic group, or an aryl group;
Y comprises a bond, C, N, O, S, a branched or linear —(CH
2
)
p
— group where p is an integer between 0 and 10, an aromatic group, a cycloalkyl group, a heterocyclic group, or a NR
7
group where R
7
is hydrogen atom, an alkyl group, or aryl group, wherein Y has a multivalent structure selected to form n bonds with the corresponding X groups; and
Z comprises a heterocyclic group selected from the group consisting of phenothiazine group, phenoxazine group, phenoxathiin group, dibenzo(
1,4
)dioxin group, thianthrene group, and phenazine group; and (b) a charge generating compound. Corresponding electrophotographic apparatuses and imaging methods are described.
改进的有机光电受体包括一个电导基板和位于电导基板上的光电导元件,该光电导元件包括:(a) 具有下述结构的电荷传输材料:其中n为2到6之间的整数,包括2和6;R1和R2独立地为H、烷基、烷基芳基或芳基;X为具有下述结构的连接基团:—(CH2)m—,分支或直链,其中m为0到20之间的整数,包括0和20,并且其中一个或多个亚甲基基团可以选择性地被O、S、C═O、O═S═O、杂环基团、芳基、脲基、脲基、酯基、NR3基团、CHR4基团或CR5R6基团所取代,其中R3、R4、R5和R6独立地为H、羟基、硫醇基、烷基、烷基芳基、杂环基团或芳基;Y包括键、C、N、O、S、分支或直链的—(CH2)p—基团,其中p为0到10之间的整数,芳基、环烷基、杂环基团或NR7基团,其中R7为氢原子、烷基或芳基,其中Y具有多价结构,选择性地与相应的X基团形成n个键;Z包括从苯并噻嗪基团、苯氧噻嗪基团、苯氧硫氮基团、二苯并(1,4)二噁嗪基团、噻安三烯基团和苯并噻啉基团中选择的杂环基团;以及(b) 一个电荷生成化合物。描述了相应的静电复印设备和成像方法。