| 摘要 |
The present invention discloses an triphenylene-based fused carbazole compound is represented by the following formula (1) or formula (2), the organic EL device employing the derivative as light emitting host of emitting layer can display good performance like as lower driving voltage and power consumption, increasing efficiency and half-life time.;;wherein Ar, X1 to X4, m, and R1 to R3 are the same definition as described in the present invention. |
| 主权项 |
1. A compound with a general formula (1) or formula (2) as follows: wherein L represents a single bond, a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heterarylene group having 3 to 30 ring carbon atoms, Ar is selected from the group consisting of a substituted or unsubstituted aryl group having 6 to 60 carbon atoms or a substituted or unsubstituted heteroaryl group having 3 to 60 carbon atoms, preferably Ar represents a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted biscarbazolyl group, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted triazinyl group, a substituted or unsubstituted diazinyl group, a substituted or unsubstituted pyridinyl group, a substituted or unsubstituted phenanthroline group, a substituted or unsubstituted dihydroacridine group, a substituted or unsubstituted phenothiazine group, a substituted or unsubstituted phenoxazine group and a substituted or unsubstituted dihydrophenazine group; X1 to X4 independently represent a nitrogen atom or C(Rs), and each Rs represents a hydrogen, a halide and a substituent, R1 to R3 are independently selected from the group consisting of a hydrogen atom, a halide, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms. |
