The present invention relates to an electroluminescent device. More specifically, the electroluminescent device according to the present invention is comprised of a first electrode; a second electrode; and at least one organic layer(s) interposed between the first electrode and the second electrode; and the organic layer comprises one or more organic electroluminescent compound(s) represented by Chemical Formula (1) as host material:
Chemical Formula 1 L1L2M(Q)y
wherein, the ligands, L1 and L2 are independently selected from the following structures:
wherein, M represents a divalent or trivalent metal;
y is 0 when M is a divalent metal, while y is 1 when M is a trivalent metal;
Q represents (C6-C60)aryloxy or tri(C6-C60)arylsilyl, and the aryloxy or triarylsilyl of Q may be further substituted by (C1-C60)alkyl or (C6-C60)aryl.
The electroluminescent devices according to the invention exhibit excellent color purity and luminous efficiency.
本发明涉及一种电致发光装置。更具体地说,根据本发明的电致发光装置由一个第一电极、一个第二电极和至少一个夹在第一电极和第二电极之间的有机层组成;有机层包括一个或多个由
化学式(1)代表的有机电致发光化合物作为主材料:
化学式 1 L1
L2M(Q)y
其中,
配体 L1 和
L2 独立地选自以下结构:
其中,M 代表二价或三价
金属;
当 M 为二价
金属时,y 为 0;当 M 为三价
金属时,y 为 1;
Q代表(C6-C60)芳氧基或三(C6-C60)芳基
硅烷基,Q的芳氧基或三芳基
硅烷基可进一步被(C1-C60)烷基或(C6-C60)芳基取代。
本发明的电致发光器件具有极佳的色纯度和发光效率。