Compound for organic electric element, organic electric element using the same, and electronic device thereof

A compound represented by Formula 2 below

• in Formula 2,
• 1) Ar4 is selected from the group consisting of a C6-C60 aryl group;
• a fluorenyl group;
• a C2-C60 heterocyclic group including at least one hetero atom of O, N, S, Si and P;
• a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
• a C1-C50 alkyl group;
• a C2-C20 alkenyl group;
• a C2-C20 alkynyl group;
• a C1-C30 alkoxyl group;
• a C6-C30 aryloxy group;
• and -L′-N(Ra)(Rb) (where, L′ is selected from the group consisting of a single bond;
• a C6-C60 arylene group;
• a fluorenylene group;
• a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
• and a C2-C60 heterocyclic, and Ra and Rb are each independently selected from the group consisting of a C6-C60 aryl group;
• a fluorenyl group;
• a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
• and a C2-C60 heterocyclic group containing at least one hetero atom of O, N, S, Si, and P),
• 2) c and e are integer of 0 to 10, and d is an integer of 0 to 2,
• 3) R3, R4 and R5 may be the same or different, and are each independently selected from the group consisting of deuterium;
• halogen;
• a C6-C60 aryl group;
• a fluorenyl group;
• a C2-C60 heterocyclic group including at least one heteroatom of O, N, S, Si or P;
• a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
• a C1-C50 alkyl group;
• a C2-C20 alkenyl group;
• a C2-C20 alkynyl group;
• a C1-C30 alkoxyl group;
• a C6-C30 aryloxy group;
• and -L′-N(Ra)(Rb) wherein L′, Ra and Rb are same as defined above;
• or in case c and e are 2 or more and d is 2, R3, R4 and R5 are each in plural and are the same or different, and a plurality of R1 or a plurality of R2 or a plurality of R3 or a plurality of R4 or a plurality of R5 may be bonded to each other to form a ring.
• 4) L2 may be selected from the group consisting of a single bond, a C6-C60 arylene group, and a fluorenylene group;
• a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
• and a C2-C60 heterocyclic group,
• 5) A and B may be independently a C6-C60 aryl group or a C2-C20 heterocyclic group, wherein both A and B are a substituted or unsubstituted C6 aryl group (phenyl group), d is 2 and R4s are bonded to each other to form a ring to form an aromatic or hetero ring,
• 6) i and j are independently 0 or 1, with the proviso that i+j is 1 or more, and when i or j is 0, it means a direct bond,
• 7) X1 and X2 are independently NR′, O, S, or CR′R″, wherein R′ and R″ are independently hydrogen;
• a C6-C60 aryl group;
• a fluorenyl group;
• a C3-C60 heterocyclic group;
• or a C1-C50 alkyl group;
• or R′ and R″ may be bonded to each other to form a spiro,
• wherein, the aryl group, fluorenyl group, arylene group, heterocyclic group, fused ring group, alkyl group, alkenyl group, alkoxy group and aryloxy group may be substituted with one or more substituents selected from the group consisting of deuterium;
• halogen;
• a silane group substituted or unsubstituted with C1-C20 alkyl group or C6-C20 aryl group;
• siloxane group;
• boron group;
• germanium group;
• cyano group;
• nitro group;
• -L′-N(Ra)(Rb);
• a C1-C20 alkylthio group;
• C1-C20 alkoxyl group;
• C1-C20 alkyl group;
• C2-C20 alkenyl group;
• C2-C20 alkynyl group;
• C6-C20 aryl group;
• C6-C20 aryl group substituted with deuterium;
• a fluorenyl group;
• C2-C20 heterocyclic group;
• C3-C20 cycloalkyl group;
• C7-C20 arylalkyl group and C8-C20 arylalkenyl group, wherein the substituents may combine each other and form a saturated or unsaturated ring, wherein the term ‘ring’ means a C3-C60 aliphatic ring or a C6-C60 aromatic ring or a C2-C60 heterocyclic ring or a fused ring formed by the combination thereof.

An organic electric element comprising:

• a first electrode, a second electrode, and an organic material layer formed between the first electrode and the second electrode, wherein the organic material layer comprises an emitting layer, wherein the emitting layer comprises a first host compound represented by Formula 1 as the phosphorescent light emitting layer and a second host compound represented by Formula 2.
• In Formula 1 and Formula 2,
• 1) Ar1, Ar2, Ar3, and Ar4 are each independently selected from the group consisting of a C6-C60 aryl group;
• a fluorenyl group;
• a C2-C60 heterocyclic group including at least one hetero atom of O, N, S, Si and P;
• a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
• a C1-C50 alkyl group;
• a C2-C20 alkenyl group;
• a C2-C20 alkynyl group;
• a C1-C30 alkoxyl group;
• a C6-C30 aryloxy group;
• and -L′-N(Ra)(Rb) wherein L′ is selected from the group consisting of a single bond;
• a C6-C60 arylene group;
• a fluorenylene group;
• a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
• and a C2-C60 heterocyclic, and Ra and Rb are independently selected from the group consisting of a C6-C60 aryl group;
• a fluorenyl group;
• a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
• and a C2-C60 heterocyclic group containing at least one hetero atom of P, N, S, Si, and P, wherein Ar2 and Ar3 may be bonded to each other to form a ring,
• 2) a is an integer of 0 to 4, and b is an integer of 0 to 3, and c and e are integer of 0 to 10, and d is an integer of 0 to 2,
• 3) R1, R2, R3, R4 and R5 may be the same or different, and are each independently selected from the group consisting of deuterium;
• halogen;
• a C6-C60 aryl group;
• a fluorenyl group;
• a C2-C60 heterocyclic group including at least one heteroatom of O, N, S, Si or P;
• a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
• a C1-C50 alkyl group;
• a C2-C20 alkenyl group;
• a C2-C20 alkynyl group;
• a C1-C30 alkoxyl group;
• a C6-C30 aryloxy group;
• and -L′-N(Ra)(Rb);
• or in case a, b, c, and e are 2 or more, d is 2, R1, R2, R3, R4 and R5 are each in plural and are the same or different, and a plurality of R1 or a plurality of R2 or a plurality of R3 or a plurality of R4 or a plurality of R5 may be bonded to each other to form a ring.
• 4) L1 and L2 are each independently selected from the group consisting of a single bond, a C6-C60 arylene group, and a fluorenylene group;
• a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
• and a C2-C60 heterocyclic group,
• 5) A and B are each independently a C6-C60 aryl group or a C2-C20 heterocyclic group, wherein both A and B are a substituted or unsubstituted C6 aryl group (phenyl group), d is 2, and R4s are bonded to each other to form an aromatic or hetero ring,
• 6) i and j are independently 0 or 1, with the proviso that i+j is 1 or more, and when i or j is 0, it means a direct bond,
• 7) X1 and X2 are independently NR′, O, S, or CR′R″, wherein R′ and R″ are independently hydrogen;
• a C6-C60 aryl group;
• a fluorenyl group;
• a C3-C60 heterocyclic group;
• or a C1-C50 alkyl group, wherein R′ and R″ may be bonded to each other to form a spiro,
• 8) n is an integer of 1 or 2, and when n is 2, two Ar2 are the same or different, and two Ar3 are each the same or different.
• wherein, the aryl group, fluorenyl group, arylene group, heterocyclic group, fused ring group, alkyl group, alkenyl group, alkoxy group and aryloxy group may be substituted with one or more substituents selected from the group consisting of deuterium;
• halogen;
• a silane group substituted or unsubstituted with C1-C20 alkyl group or C6-C20 aryl group;
• siloxane group;
• boron group;
• germanium group;
• cyano group;
• nitro group;
• -L′-N(Ra)(Rb);
• a C1-C20 alkylthio group;
• C1-C20 alkoxyl group;
• C1-C20 alkyl group;
• C2-C20 alkenyl group;
• C2-C20 alkynyl group;
• C6-C20 aryl group;
• C6-C20 aryl group substituted with deuterium;
• a fluorenyl group;
• C2-C20 heterocyclic group;
• C3-C20 cycloalkyl group;
• C7-C20 arylalkyl group and C8-C20 arylalkenyl group, wherein the substituents may combine each other and form a saturated or unsaturated ring, wherein the term ‘ring’ means a C3-C60 aliphatic ring or a C6-C60 aromatic ring or a C2-C60 heterocyclic ring or a fused ring formed by the combination thereof.