Organic light-emitting device

An organic light-emitting device comprising:

• a first electrode, and a second electrode each having a surface opposite the other;
• and
• an intermediate layer disposed between the first electrode and the second electrode, the intermediate layer comprising an emission layer comprising a first compound, a second compound, and a fourth compound,
• wherein the first compound comprises a silyl group-containing group and at least two carbazole-derived groups, wherein one carbazole-derived group of the at least two carbazole-derived groups is bonded via a N atom to another carbazole-derived group,
• the second compound comprises a silyl group-containing group, a triazine group, and a carbazole-derived group, and
• the fourth compound comprises a polycyclic compound represented by Formula 4:
• wherein, in Formula 4,
• Z is B or N,
• ring CY41, CY42, and ring CY43 are each independently a C5-C30 carbocyclic group or a C1-C30 heterocyclic group,
• Y41 is *—N(R44) -*′, *—B(R44)—*′, *—P(R44)—*′, *—C(R44)(R45)—*′, *—Si(R44)(R45)—*′, *—Ge(R44)(R45)—*′, *—O—*′, *—S—*′, *—Se—*′, *—C(═O)—*′, or *—S(═O)2—*′,
• Y42 *—B(R46)—*′, *—P(R46)—*′, *—C(R46)(R47)—*′, *—Si(R46)(R47)—*, *—Ge(R46)(R47)—*′, *—O—*′, *—S—*′, *—Se—*′, *—C(═O)—*′, or *—S(═O)2—*′,
• Y43 is *—B(R48)—*′, *—P(R48)—*′, *—C(R48)(R49)—*′, *—Si(R48)(R49)—*′, *—Ge(R48)(R49)—*′, *—O—*′, *—S—*′, *—Se—*′, *—C(═O)—*′, or *—S(═O)2—*′,
• b41, b42, and b43 are each independently 0 or 1, and the sum of b41, b42, and b43 is 2,
• when b41 is 0, Y41 is not present, when b42 is 0, Y42 is not present, and when b43 is 0, Y43 is not present,
• R41 to R49 are each independently hydrogen, deuterium, —F, —Cl, —Br, —I, —SF5, 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 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 C1-C10 heterocycloalkyl group, a substituted or unsubstituted C3-C10 cycloalkenyl group, a substituted or unsubstituted C1-C10 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C7-C60 alkylaryl 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 C2-C60 alkylheteroaryl 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)(Q5), —Ge(Q3)(Q4)(Q5), —B(Q6)(Q7), —P(═O)(Q8)(Q9), or —P(Q8)(Q9),
• a41 to a43 are each independently an integer from 0 to 20,
• two or more adjacent R41(s) are optionally bonded to each other to form a C5-C30 carbocyclic group unsubstituted or substituted with at least one R10b or a C1-C30 heterocyclic group unsubstituted or substituted with at least one R10b,
• two or more adjacent R42(s) are optionally bonded to each other to form a C5-C30 carbocyclic group unsubstituted or substituted with at least one R10b or a C1-C30 heterocyclic group unsubstituted or substituted with at least one R10b,
• two or more adjacent R43(s) are optionally bonded to each other to form a C5-C30 carbocyclic group unsubstituted or substituted with at least one R10b or a C1-C30 heterocyclic group unsubstituted or substituted with at least one R10b,
• two or more of R41 to R49 of adjacent rings and/or Y groups are optionally bonded to each other to form a C5-C30 carbocyclic group unsubstituted or substituted with at least one R10b or a C1-C30 heterocyclic group unsubstituted or substituted with at least one R10b,
• R10b is the same as described in connection with R41,
• * and *′ each indicate a binding site to a neighboring atom, and
• a substituent of each 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 C1-C10 heterocycloalkyl group, the substituted C3-C10 cycloalkenyl group, the substituted C1-C10 heterocycloalkenyl group, the substituted C6-C60 aryl group, the substituted C7-C60 alkylaryl group, the substituted C6-C60 aryloxy group, the substituted C6-C60 arylthio group, the substituted C1-C60 heteroaryl group, the substituted C2-C60 alkylheteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group, or 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 a 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 C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-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 C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-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 C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-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;
• —Cl;
• —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 which is 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 C1-C10 heterocycloalkyl group;
• a C3-C10 cycloalkenyl group;
• a C1-C10 heterocycloalkenyl group;
• a C6-C60 aryl group which is unsubstituted or substituted with deuterium, a C1-C60 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.