申请人:SAMSUNG Electronics Co. Ltd.
公开号:US20030219662A1
公开(公告)日:2003-11-27
Charge transport compounds are described that have a multiple number of hydrazone-bridged heterocyclic groups (especially julolidine groups, carbazole groups, triarylamine groups and (N,N-disubstituted)arylamine groups such as dialkarylamine groups (e.g. dimethylphenylamine; methylethylphenylamine, dipropylphenylamine, ethylepropylphenylamine, ethylbutylnaphthylamine, etc.), alkyldiarylamine groups (e.g. methyldiphenylamino, ethyldiphenylamino, etc), and triarylamino groups (e.g., triphenyl amino, trinaphthylamino, etc)) connected by a central bridging group. An example of charge transport compounds are those having the following generic formula:
(R-Q)n-Y Formula I
wherein R is selected from the group consisting of julolidine ring groups, carbazole ring groups, and and (N,N-disubstituted)arylamine groups;
Q comprises an aromatic hydrazone linking group, such as
1
Y comprises a bridging group between R-Q- groups, such as a bond, carbon atom, nitrogen atom, oxygen atom, sulfur atom, a methylene group; Z is an aryl group, preferably a phenyl group or naphthyl group; X is a linking group, preferably a methylene group, and for example 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 an oxygen atom, a carbonyl group, urethane, urea, an ester group, a —NR
6
group, a CHR
7
group, or a CR
8
R
9
group where R
6
, R
7
, R
8
, and R
9
are, independently, H, an alkyl group, or aryl group; and n is an integer between 2 and 6, inclusive. An organic photoreceptor includes that compound and (b) a charge generating compound; and (c) an electrically conductive substrate.
描述了一种具有多个醛肼桥联杂环基团(尤其是茱萸啉基团、咔唑基团、三芳基胺基团和(N,N-二取代)芳胺基团,例如二芳基胺基团(例如二甲基苯胺;甲基乙基苯胺、二丙基苯胺、乙基丙基苯胺、乙基丁基萘胺等)、烷基二芳基胺基团(例如甲基二苯胺基、乙基二苯胺基等)和三芳基胺基团(例如三苯基氨基、三萘基氨基等))的电荷传输化合物,它们由中心桥接基团连接。电荷传输化合物的一个例子是具有以下通用式的化合物:(R-Q)n-Y Formula I,其中R选自茱萸啉环基团、咔唑环基团和(N,N-二取代)芳胺基团的群体;Q包括芳香醛肼连接基团,例如1;Y包括连接R-Q-基团的桥接基团,例如键、碳原子、氮原子、氧原子、硫原子、亚甲基基团;Z是芳基团,优选为苯基或萘基;X是连接基团,优选为亚甲基基团,例如具有公式—(CH2)m—(支链或直链),其中m是0到20之间的整数,包括,其中一个或多个亚甲基基团可选择地被氧原子、羰基、脲、尿素、酯基、—NR6基团、CHR7基团或CR8R9基团(其中R6、R7、R8和R9独立地为H、烷基或芳基)所替代;n是2到6之间的整数。有机光感受器包括该化合物和(b)电荷生成化合物;以及(c)电导基板。