Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent element
AssigneeIdemitsu Kosan Co., Ltd.
InventorsSayaka MIZUTANI, Takayasu Sado
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Abstract
An organic EL device includes an anode, an emitting layer, an electron transporting zone and a cathode in this sequence, in which the electron transporting zone contains an aromatic heterocyclic derivative represented by a formula (1) below. In the formula (1), X1 to X3 are a nitrogen atom or CR1, and A is represented by a formula (2) below. In the formula (2), L1 is s single bond or a linking group, and HAr is represented by a formula (3) below. In the formula (3), Y1 is an oxygen atom, a sulfur atom or the like, and one of X11 to X18 is a carbon atom bonded to L1 by a single bond and the rest of X11 to X18 are a nitrogen atom or CR13.
Claims21
(canceled)
An organic electroluminescence device comprising:
- an anode;
- an emitting layer;
- an electron transporting zone;
- and
- a cathode in this sequence,
- wherein the electron transporting zone comprises an aromatic heterocyclic derivative of formula (4):
- wherein:
- X1 to X3 are a nitrogen atom or CR1, with the proviso that at least one of X1 to X3 is a nitrogen atom,
- R1 each independently is a hydrogen atom, a halogen atom, a cyano group, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 30 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 30 carbon atoms, a substituted or unsubstituted alkylsilyl group having 3 to 30 carbon atoms, a substituted or unsubstituted arylsilyl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted aryloxy group having 6 to 30 ring carbon atoms;
- Ar1 and Ar2 are each independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 30 ring carbon atoms, or a group of formula (5), and
- A is a group of formula (5):
- (HAr)a-L1- (5)
- wherein:
- a is 1, and L1 is a substituted or unsubstituted phenylene group,
- HAr is of formula (6);
- wherein:
- Y1 is an oxygen atom or a sulfur atom;
- X11 to X18 are each independently a nitrogen atom or CR13;
- with a proviso that X13 or X16 is a carbon atom bonded to L1 by a single bond;
- R13 each independently represents a hydrogen atom, a halogen atom, a cyano group, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 30 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 30 carbon atoms, a substituted or unsubstituted alkylsilyl group having 3 to 30 carbon atoms, a substituted or unsubstituted arylsilyl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted aryloxy group having 6 to 30 ring carbon atoms;
- a plurality of R13 are mutually the same or different;
- adjacent R13 optionally bond to each other to form a ring.
Dependencies are inferred from the claim text.