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US 2020/0287138 A1Published application
Organic electroluminescence device and polycyclic compound for organic electroluminescence device
AssigneeSamsung Display Co., Ltd.
InventorsYuji SUZAKI, Akinori YAMATANI, Nobutaka AKASHI
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Abstract
An organic electroluminescence device having high luminous efficiency includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region, wherein the emission layer includes a polycyclic compound represented by Formula 1.
Claims20
An organic electroluminescence device comprising:
- a first electrode;
- a hole transport region on the first electrode;
- an emission layer on the hole transport region;
- an electron transport region on the emission layer;
- and
- a second electrode on the electron transport region,
- wherein the first electrode and the second electrode each independently comprise at least one selected from Ag, Mq, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF/Ca, LiF/AI, Mo, Ti, In, Sn, and Zn, or a compound of two or more selected from them, a mixture of two or more selected from them, or oxides of one or more selected from them,
- wherein the emission layer comprises a polycyclic compound represented by Formula 1:
- in Formula 1,
- Ar1 and Ar2 are each independently a substituted or unsubstituted aryl ring having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl ring having 2 to 30 carbon atoms for forming a ring,
- R1 to R8 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted amino group, a cyano group, a boron group, a carbonyl group, a silyl group, an oxy group, a phosphine oxide group, a phosphine sulfide group, a substituted or unsubstituted thiol group, a sulfonyl group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms for forming a ring, or R1 to R8 are combined with each other to form a ring, and
- at least two selected from R1 to R8 are represented by Formula 2:
- in Formula 2,
- L is a direct bond, a substituted or unsubstituted arylene group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroarylene group having 2 to 30 carbon atoms for forming a ring, or is combined with an adjacent group to form a ring, and
- Ar3 and Ar4 are each independently a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms for forming a ring, or are combined with adjacent groups to form a ring.
12 more elements
A polycyclic compound represented by Formula 1:
- in Formula 1,
- Ar1 and Ar2 are each independently a substituted or unsubstituted aryl ring having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl ring having 2 to 30 carbon atoms for forming a ring,
- R1 to R8 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted amino group, a cyano group, a boron group, a carbonyl group, a silyl group, an oxy group, a phosphine oxide group, a phosphine sulfide group, a substituted or unsubstituted thiol group, a sulfonyl group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms for forming a ring, or R1 to R8 are combined with each other to form a ring, and
- at least two selected from R1 to R8 are represented by Formula 2:
- in Formula 2,
- L is a direct bond, a substituted or unsubstituted arylene group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroarylene group having 2 to 30 carbon atoms for forming a ring, or is combined with an adjacent group to form a ring, and
- Ar3 and Ar4 are each independently a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms for forming a ring, or are combined with adjacent groups to form a ring.
4 more elements
Dependencies are inferred from the claim text.