Composition and organic light-emitting device including the same

A composition comprising:

• a first compound, a second compound, and a third compound, wherein the first compound comprises a compound represented by Formula 1, the second compound comprises a compound represented by Formula 2, and the third compound comprises a compound represented by Formula 3:
• wherein
• Y2 in Formula 1 is C,
• a group represented by
• in Formula 1 is a group represented by Formula A(1):
• wherein, in Formula A(1), R9 and R11 are each independently a C1-C20 alkyl group, a C3-C10 cycloalkyl group, a C2-C10 heterocycloalkyl group, or a phenyl group, each unsubstituted or substituted with deuterium, a C1-C20 alkyl group, a C3-C10 cycloalkyl group, a C2-C10 heterocycloalkyl group, a phenyl group, or any combination thereof, and R10 and R12 are each independently hydrogen or deuterium, *′indicates a binding site to Ir in Formula 1, and *″ indicates a binding site to a neighboring atom in Formula 1,
• Ar1, Ar2, and Arn in Formulae 2 and 3 are each independently a C5-C60 carbocyclic group which is unsubstituted or substituted with at least one R61 or a C1-C60 heterocyclic group which is unsubstituted or substituted with at least one R61,
• Ar5 and A12 in Formulae 2 and 3 are each independently a single bond, a C5-C60 carbocyclic group which is unsubstituted or substituted with at least one R65, or a C1-C60 heterocyclic group which is unsubstituted or substituted with at least one R65, or does not exist,
• n in Formula 2 is 1, 2, or 3, and when n is 1, Ar5 does not exist,
• p in Formula 3 is 1, 2, or 3, and when p is 1, Ar12 does not exist,
• a1 and a2 in Formula 2 are each independently an integer from 0 to 5, and the sum of a1 and a2 is 1 or more,
• ring CY2 and ring CY3 in Formula 2 are each independently a C5-C60 carbocyclic group or a C1-C60 heterocyclic group, and ring CY2 and ring CY3 are optionally linked to each other with a C5-C60 carbocyclic group which is unsubstituted or substituted with at least one R66 or a C1-C60 heterocyclic group which is unsubstituted or substituted with at least one R66 therebetween,
• Het1 in Formula 3 is a π electron-depleted nitrogen-containing C1-C60 cyclic group,
• a11 and m in Formula 3 are each independently an integer from 1 to 10, R1 to R8, A1 to A7, R20, R30, R61, R65, R66, R70, and R80 in Formulae 1 to 3 are each independently hydrogen, deuterium, —F, —Cl, —Br, —I, —SF5, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazino group, a hydrazono group, a carboxylic acid or a salt thereof, a sulfonic acid or a salt thereof, a phosphoric acid or a salt thereof, a substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C2-C60 alkenyl group, a substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C10 cycloalkyl group, a substituted or unsubstituted C2-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C2-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C6-C60 arylthio group, a substituted or unsubstituted C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, —N(Q1)(Q2), —Si(Q3)(Q4)(Qs), —Ge(Q3)(Q4)(Qs), —B(Q6)(Q7), —P(═O)(Qs)(Q9), or —P(Qs)(Q9), provided that at least one of R1 to Rs is a fluoro group (—F),
• b2, b3, b7, and b8 in Formulae 2 and 3 are each independently an integer from 0 to 20, when b2 is 2 or more, two or more R20(s) are identical to or different from each other, when b3 is 2 or more, two or more R30(s) are identical to or different from each other, when b7 is 2 or more, two or more R70(s) are identical to or different from each other, and when b8 is 2 or more, two or more R80(s) are identical to or different from each other,
• two or more of R1 to Rs in Formula 1 are optionally linked to form a C5-C60 carbocyclic group which is unsubstituted or substituted with at least one Ria or a C1-C0 heterocyclic group which is unsubstituted or substituted with at least one R1a,
• two or more of A1 to A7 in Formula 1 are optionally linked to form a C5-C60 carbocyclic group which is unsubstituted or substituted with at least one Ria or a C1-C0 heterocyclic group which is unsubstituted or substituted with at least one R1a,
• two or more of ring CY2, ring CY3, R20, and R30 in Formula 2 are optionally linked to form a C5-C60 carbocyclic group which is unsubstituted or substituted with at least one Ria or a C1-C60 heterocyclic group which is unsubstituted or substituted with at least one R1a,
• R1a is understood by referring to the description of A7 provided above, and
• a substituent of the substituted C1-C60 alkyl group, the substituted C2-C60 alkenyl group, the substituted C2-C60 alkynyl group, the substituted C1-C60 alkoxy group, the substituted C3-C10 cycloalkyl group, the substituted C2-C10 heterocycloalkyl group, the substituted C3-C10 cycloalkenyl group, the substituted C2-C10 heterocycloalkenyl group, the substituted C6-C60 aryl group, the substituted C6-C60 aryloxy group, the substituted C6-C60 arylthio group, the substituted C1-C60 heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed heteropolycyclic group is:
• deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, or C1-C60 alkoxy group;
• a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, or a C1-C60 alkoxy group, each substituted with deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C3-C10 cycloalkyl group, a C2-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C2-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q11)(Q12), —Si(Q13)(Q14)(Q15), —Ge(Q13)(Q14)(Q15), —B(Q16)(Q17), —P(═O)(Q18)(Q19), —P(Q18)(Q19), or any combination thereof;
• a C3-C10 cycloalkyl group, a C2-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C2-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, or a monovalent non-aromatic condensed heteropolycyclic group, each unsubstituted or substituted with deuterium, —F, —Cl, —Br, —I, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, a C1-C60 alkoxy group, a C3-C10 cycloalkyl group, a C2-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C2-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q21)(Q22), —Si(Q23)(Q24)(Q25), —Ge(Q23)(Q24)(Q25), —B(Q26)(Q27), —P(═O)(Q28)(Q29), —P(Q28)(Q29), or any combination thereof;
• —N(Q31)(Q32), —Si(Q33)(Q34)(Q35), —Ge(Q33)(Q34)(Q35), —B(Q36)(Q37), —P(═O)(Q38)(Q39),or —P(Q38)(Q39);
• or
• any combination thereof,
• wherein Q1 to Q9, Q11 to Q19, Q21 to Q29, and Q31 to Q39 are each independently hydrogen;
• deuterium;
• —F;
• —C1;
• —Br;
• —I;
• a hydroxyl group;
• a cyano group;
• a nitro group;
• an amidino group;
• a hydrazine group;
• a hydrazone group;
• a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof;
• a phosphoric acid group or a salt thereof;
• a C1-C60 alkyl group, unsubstituted or substituted with deuterium, a C1-C60 alkyl group, a C6-C60 aryl group, or any combination thereof;
• a C2-C60 alkenyl group;
• a C2-C60 alkynyl group;
• a C1-C60 alkoxy group;
• a C3-C10 cycloalkyl group;
• a C2-C10 heterocycloalkyl group;
• a C3-C10 cycloalkenyl group;
• a C2-C10 heterocycloalkenyl group;
• a C6-C60 aryl group, unsubstituted or substituted with deuterium, a C1-C0 alkyl group, a C6-C60 aryl group, or any combination thereof, a C6-C60 aryloxy group;
• a C6-C60 arylthio group;
• a C1-C60 heteroaryl group;
• a monovalent non-aromatic condensed polycyclic group;
• or a monovalent non-aromatic condensed heteropolycyclic group.