Compound for organic electric element, organic electric element using the same, and electronic device 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 and the emitting layer is a phosphorescent light emitting layer comprising a first host compound represented by Formula 1 and a second host compound represented by Formula 24:
• wherein:
• 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;
• and a C6-C30 aryloxy group;
• 2) a is an integer of 0 to 4, and b is an integer of 0 to 3, and c and e are an integer of 0 to 10, and d is an integer of 0 to 2,
• 3) R1, R2, R3, R4 and R5 are, being the same or different from each other, 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;
• and a C6-C30 aryloxy group;
• 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 where 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 heteroaromatic ring,
• 6) X2 is 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 ring,
• 7) 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;
• 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;
• and C2-C20 heterocyclic 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.