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US 2024/0188431 A1Published application
Organic electroluminescent element and electronic device
AssigneeIdemitsu Kosan Co., Ltd.
InventorsTetsuya MASUDA, Takushi SHIOMI, Masayuki MITSUYA
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Abstract
An organic electroluminescence device may have good organic electroluminescence device performance by including a light emitting layer, a first electron transporting layer, and a second electron transporting layer from an anode toward a cathode. The first electron transporting layer may include a first compound of formula (1): A-(L)n-Ar—CN (1). The second electron transporting layer may include a second compound of formula (2):
Claims20
1:
- An organic electroluminescence device, comprising:
- a cathode;
- an anode;
- and
- an organic layer between the cathode and the anode,
- wherein the organic layer comprises a light emitting layer, a first electron transporting layer comprising a first compound, and a second electron transporting layer comprising a second compound, in this order from the anode toward the cathode,
- wherein the first compound is of formula (1):
- A-(L)n-Ar—CN (1),
- wherein
- A is
- with X being O, S, NR41 or CR42R43, and R41, R42, and R43 independently being a methyl or phenyl,
- L and Ar are phenylene,
- n is an integer of 0 to 2,
- wherein the second compound is of formula (2c):
- wherein
- R3 and R5 are phenyl,
- wherein R1 is a group of any of formulae (3) to (6),
- wherein
- L1 is benzanthracene, benzophenanthrene, chrysene, benzochrysene, or benzotriphenylene,
- L2, L4, and L5 are independently phenylene or naphthylene,
- L3 and L6 are independently benzanthracene, benzophenanthrene, chrysene, benzochrysene, or benzotriphenylene,
- L7 is phenylene,
- L8 is benzanthracene, benzophenanthrene, chrysene, benzochrysene, or benzotriphenylene, and
- L9 is phenyl, naphthyl, or phenanthrene.
21 more elements
2:
- The device of claim 1, wherein X in the first compound of formula (1) is NR41 and
- wherein R41 is a substituted or unsubstituted non-fused aryl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted fused heteroaryl group having 5 to 30 ring atoms.
3:
- The device of claim 1, wherein X in the first compound of formula (1) is NR41 and
- wherein R41 is a substituted or unsubstituted non-fused aryl group having 6 to 18 ring carbon atoms.
4:
- The device of claim 1, wherein X in the first compound of formula (1) is NR41 and
- wherein R41 is phenyl or biphenylyl.
5:
- The device of claim 1, wherein X in the first compound of formula (1) is NR41 and
- wherein R41 is dibenzofuranyl or dibenzothiophenyl.
6:
- The device of claim 1, wherein R1 in the second of formula (2c) has the formula (4):
- -L2-L3 (4),
- wherein
- L2 is phenylene or naphthylene, and
- L3 is benzanthracene, benzophenanthrene, chrysene, benzochrysene, or benzotriphenylene.
2 more elements
7:
- The device of claim 1, wherein R1 in the second of formula (2c) has the formula (4):
- -L2-L3 (4),
- wherein
- L2 is phenylene or naphthylene, and
- L3 is benzanthracene, benzophenanthrene, chrysene, benzochrysene, or benzotriphenylene, and
- wherein X in formula (1) is NR41,
- wherein R41 is a substituted or unsubstituted non-fused aryl group having 6 to 30 ring carbon atoms or a substituted or unsubstituted fused heteroaryl group having 5 to 30 ring atoms.
4 more elements
8:
- The device of claim 1, wherein the first compound has a structure:
9:
- The device of claim 1, wherein the second compound has a structure:
10:
- The device of claim 1, wherein the first compound has a structure:
- wherein the second compound has a structure:
11:
- A compound of formula (2C):
- wherein R3 and R5 are phenyl groups,
- wherein R1 is a group of any of formulae (3) to (6),
- wherein
- L1 is benzanthracene, benzophenanthrene, or chrysene,
- L2, L4, and L5 are independently phenylene or naphthylene,
- L3 and L6 are independently benzanthracene, benzophenanthrene, or chrysene,
- L7 is phenylene.
- L8 is benzanthracene, benzophenanthrene, or chrysene, and
- L9 is phenyl, naphthyl, or phenanthrene.
7 more elements
12:
- The compound of claim 11, wherein L2, L4, and L5 are phenylene.
13:
- The compound of claim 11, wherein R1 has the formula (4):
- -L2-L3 (4),
- wherein
- L2 is phenylene or naphthylene, and
- L3 is benzanthracene, benzophenanthrene, or chrysene.
2 more elements
14:
- The compound of claim 11, wherein R1 has the formula (4):
- -L2-L3 (4),
- wherein
- L2 is phenylene, and
- L3 is benzanthracene, benzophenanthrene, or chrysene.
2 more elements
15:
- The compound of claim 11, having a structure:
16:
- The compound of claim 11 having a structure:
17:
- The compound of claim 11, having a structure:
18:
- The device of claim 1, wherein the second compound has a structure:
19:
- The device of claim 1, wherein the second compound has a structure:
The device of claim 1, wherein the second compound has a structure:
Dependencies are inferred from the claim text.