| 主权项 |
1. An organic light-emitting device comprising:
a first electrode; a second electrode; and an organic layer comprising an emission layer and a hole transport region between the first electrode and the second electrode, wherein the hole transport region is between the first electrode and the emission layer, and the hole transport region comprises a first compound represented by Formula 1and a second compound represented by Formula 2: wherein, in Formulae 1 and 2, X11 is selected from a single bond, N(R17), P(R17), P(R17)(R18), C(R17)(R18), Si(R17)(R18), O, and S; X12 is selected from a single bond, N(R19), P(R19), P(R19)(R20), C(R19)(R20), Si(R19)(R20), O, and S, wherein X11 and X12 are not both a single bond at the same time; X21 is selected from B, N, and P; A11 to A13 are each independently selected from a C5-C20 cyclic group and a C1-C20 heterocyclic group; L11 to L13 and L21 to L23 are each independently selected from a substituted or unsubstituted C3-C10 cycloalkylene group, a substituted or unsubstituted C1-C10 heterocycloalkylene group, a substituted or unsubstituted C3-C10 cycloalkenylene group, a substituted or unsubstituted C1-C10 heterocycloalkenylene group, a substituted or unsubstituted C6-C60 arylene group, a substituted or unsubstituted C1-C60 heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group; a11 to a13 and a21 to a23 are each independently selected from 0, 1, 2, 3, 4, and 5; R11 to R13 and R21 to R23 are each independently selected from 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 C1-C60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group; R14 to R20 are each independently selected from hydrogen, deuterium, —F, —Cl, —Br, —I, 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 substituted or unsubstituted C1-C60 alkyl group, a substituted or unsubstituted C1-C60 alkoxy 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, and a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group; b14 to b16 are each independently selected from 1, 2, 3, and 4; and n11 to n13 are each independently selected from 0, 1, and 2, provided that the sum of n11 to n13 is selected from 1,2,3, 4, 5, and 6. |
