| 摘要 |
An organic electroluminescent device containing, between an anode and a cathode facing each other, a first hole transporting layer, an adjacent layer adjacent to an emitting layer, and an emitting layer, in this order from the side of the anode, wherein the first hole transporting layer contains a compound represented by the following formula (1), is provided as an organic EL device that is capable of being driven at a low voltage and has a prolonged life time and high efficiency. (In the formula, R1 to R4, L1, Ar1, Ar2, m, n, p and q are as defined in the specification.); |
| 主权项 |
1. An organic electroluminescent device comprising,
between an anode and a cathode facing each other, a first hole transporting layer, an adjacent layer adjacent to an emitting layer, and an emitting layer, in this order from a side of the anode, wherein the first hole transporting layer comprises a compound represented by a formula (1): wherein in the formula (1), Ar1 and Ar2 may be the same as or different from each other and each represent a substituted or unsubstituted alkyl group having from 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having from 6 to 50 ring carbon atoms, a substituted or unsubstituted heteroaryl group having from 3 to 50 ring atoms, a substituted or unsubstituted fluoroalkyl group having from 1 to 20 carbon atoms, a substituted or unsubstituted alkoxy group having from 1 to 20 carbon atoms, a substituted or unsubstituted fluoroalkoxy group having from 1 to 20 carbon atoms, or a substituted or unsubstituted aryloxy group having from 6 to 50 ring carbon atoms; L1 represents a single bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group; R1 to R4 may be the same as or different from each other and each represent a substituted or unsubstituted alkyl group having from 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having from 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having from 3 to 50 ring atoms, a halogen atom, a substituted or unsubstituted fluoroalkyl group having from 1 to 20 carbon atoms, a substituted or unsubstituted alkoxy group having from 1 to 20 carbon atoms, a substituted or unsubstituted fluoroalkoxy group having from 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having from 6 to 50 ring carbon atoms, or a cyano group; m represents an integer of from 0 to 4; n represents an integer of from 0 to 3; and p and q each independently represent an integer of from 0 to 5, provided that the carbon atom a and the carbon atom b may be bonded directly to each other through a single bond. |
