An electrophotographic photoreceptor includes a conductive substrate; a photosensitive layer provided on the conductive substrate; and an undercoating layer that is provided between the conductive substrate and the photosensitive layer and includes a charge transport material containing at least one of imide compounds represented by Formula (1) or (2):
(in Formulas (1) and (2), R10, R11, R20 or R21 independently represents a group represented by Formula (3) or (4) where X represents a monovalent organic group having at least one of an alkyl group, an alkylene group, an ether group, an ester group, and a keto group, a halogen atom, a nitro group, an aralkyl group, or an aryl group, Y represents a sulfur atom or an oxygen atom, n represents an integer of 0 to 2, and when n represents 2, two X's may be the same or different), and an imide compound is represented by Formula (1A) where Ar represents an aromatic group having 6 to 18 carbon atoms except for a tetravalent perylene group, X1 and X2 each independently represent a nitrogen atom or a substituted or unsubstituted carbon atom, Y1 and Y2 each independently represent an oxygen atom, a sulfur atom, a selenium atom, or NH, and R1 and R2 each independently represent a hydrogen atom or a monovalent organic group:
电致发光感光元件包括导电基板;设置在导电基板上的感光层;以及设置在导电基板和感光层之间的底涂层,该底涂层包括电荷传输材料,其中至少含有一种由式(1)或(2)表示的
酰亚胺化合物:
(在式(1)和(2)中,R10、R11、R20 或 R21 独立地代表由式(3)或(4)表示的基团,其中 X 代表具有烷基、亚烷基、醚基、酯基和酮基中至少一种的一价有机基团,卤原子、硝基、芳烷基或芳基、卤素原子、硝基、芳烷基或芳基,Y 代表
硫原子或氧原子,n 代表 0 至 2 的整数,当 n 代表 2 时,两个 X 可以相同或不同、)和一种
酰亚胺化合物由式(1A)表示 其中 Ar 代表具有 6 至 18 个碳原子的芳香基团,四价过烯基团除外;X1 和 X2 各自独立地代表一个氮原子或一个取代或未取代的碳原子;Y1 和 Y2 各自独立地代表一个氧原子、一个
硫原子、一个
硒原子或 NH;以及 R1 和 R2 各自独立地代表一个氢原子或一个一价有机基团: