Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (c) a charge transport material having the formula:
R
1
—N═N—Ar
1
—X—Ar
2
—N═N—R
2
where R
1
and R
2
comprise, each independently, a 4-oxo-2,5-cyclohexadiene-1-ylidenyl group; X comprises oxy, thio, sulfonyl, sulfinyl, sulfonyldioxy, azo, carbonyl, thiocarbonyl, carbonyldioxy, oxalyl, an arylene group, an arylenebisazo group, an imino group, a hydrazo group, a carbonimidoyl group, a vinylene group, or a combination thereof; and
Ar
1
and Ar
2
comprise, each independently, an aromatic group; and (b) a charge generating compound. Corresponding electrophotographic apparatuses, imaging methods, and the charge transport material are also described.
改进的有机光感受器包括导电基板和导电基板上的光电导元件,光电导元件包括:(c) 具有以下式子的电荷传输材料:
R
1
-N═N-Ar
1
-X-Ar
2
-N═N-R
2
其中 R
1
和 R
2
各自独立地包括一个 4-氧代-2,5-环
己二烯-1-亚基基团;X 包括氧基、
硫代基、磺酰基、亚磺酰基、磺酰二氧基、偶氮基、羰基、
硫代羰基、碳酰二氧基、草酰基、芳烯基、芳烯双偶氮基、亚
氨基、腙基、碳亚酰胺基、
乙烯基或它们的组合;以及
Ar
1
和 Ar
2
各自独立地包括一个芳香基团;以及 (b) 电荷生成化合物。还描述了相应的电致发光装置、成像方法和电荷传输材料。