A 4-aminocarbazole compound represented by formula (1):
wherein Ar
1
-Ar
4
represent substituted or unsubstituted aryl, thienyl, pyridyl, benzothienyl, dibenzothienyl, dibenzofuranyl, 4-carbazolyl, dibenzothienylphenyl, dibenzofuranylphenyl or 9-carbazolylphenyl group; R
1
-R
7
represent substituted or unsubstituted aryl, heteroaryl or heteroarylphenyl group, or alkyl, alkoxy, cyano group, or hydrogen or halogen atom; n is integer of 0-2; and X represents substituted or unsubstituted (n+1)-valent aromatic hydrocarbon, heteroaromatic or heteroarylphenyl group. The 4-aminocarbazole compound provides an organic EL device exhibiting enhanced emitting efficiency and durability.
一种由式(1)表示的
4-氨基咔唑化合物:
其中,Ar1-Ar4表示取代或未取代的芳基,
噻吩基,
吡啶基,
苯并噻吩基,
二苯并噻吩基,
二苯并呋喃基,4-
咔唑基,
二苯并噻吩基
苯基,
二苯并呋喃基
苯基或9-
咔唑基
苯基;
R1-R7表示取代或未取代的芳基,杂环芳基或杂环芳基
苯基,或烷基,烷
氧基,
氰基,
氢原子或卤素原子;
n为0-2的整数;
X表示取代或未取代的(n+1)价
芳香烃,杂
芳烃或杂芳基
苯基。
该
4-氨基咔唑化合物提供了一种具有增强发光效率和耐久性的有机EL器件。