Organic light-emitting device

An organic light-emitting device comprising:

• a first electrode;
• a second electrode disposed opposite to the first electrode;
• a blue emission layer disposed between the first electrode and the second electrode;
• a hole-transporting region disposed between the first electrode and the blue emission layer;
• an electron-transporting region disposed between the blue emission layer and the second electrode;
• and
• an interlayer disposed between the blue emission layer and the hole-transporting region;
• wherein
• the interlayer comprises a compound represented by Formula 9 below,
• the hole-transporting region comprises at least one selected from a compound represented by Formula 2 below and a compound represented by Formula 3 below, and
• the blue emission layer comprises a compound represented by Formula 4 below
• wherein, in Formulae 9, 3, and 4,
• Ar11, Ar12, Ar13, Ar111, and Ar112 are each independently selected from a substituted or unsubstituted C3-C10 cycloalkylene group, a substituted or unsubstituted C2-C10 heterocycloalkylene group, a substituted or unsubstituted C3-C10 cycloalkenylene group, a substituted or unsubstituted C2-C10 heterocycloalkenylene group, a substituted or unsubstituted C6-C60 arylene group, or a substituted or unsubstituted C2-C60 heteroarylene group;
• c1 to c3 are each independently an integer of 1 to 5;
• Ar113 to Ar116 are each independently selected from a hydrogen, a deuterium, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine, a hydrazone, a carboxyl acid group or a salt thereof, a sulfonic acid group 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 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 C2-C60 heteroaryl group, or —Si(Q3)(Q4)(Q5) (wherein, Q3 to Q5 are each independently selected from a C1-C60 alkyl group, a C1-C60 alkoxy group, a C6-C60 aryl group, and a C2-C60 heteroaryl group);
• R31 to R36 are each independently:
• a hydrogen, a deuterium, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazine, a hydrazone, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid or a salt thereof, a C1-C20 alkyl group, or a C1-C20 alkoxy group;
• a C1-C20 alkyl group and a C1-C20 alkoxy group, each substituted with at least one of a deuterium, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazine, a hydrazone, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, or a phosphoric acid or a salt thereof;
• a C6-C20 aryl group and a C2-C20 heteroaryl group;
• or
• a C6-C20 aryl group and a C2-C20 heteroaryl group, each substituted with at least one of a deuterium, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazine, a hydrazone, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid 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 phenyl group, a naphthyl group, an anthracenyl group, a fluorenyl group, a dimethyl fluorenyl group, a diphenyl fluorenyl group, a carbazolyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a phenyl carbazolyl group, a pyridinyl group, a pyrimidinyl group, a pyrazinyl group, a pyridazinyl group, a triazinyl group, a quinolinyl group, or an isoquinolinyl group,
• A1 is anthracene or pyrene,
• g, h, i, and j are each independently an integer of 0 to 4,
• provided that, the case of g, h, i, and j being 0 is excluded, and
• wherein, in Formula 2,
• Ar1 to Ar3 are each independently selected from a substituted or unsubstituted C3-C10 cycloalkylene group, a substituted or unsubstituted C2-C10 heterocycloalkylene group, a substituted or unsubstituted C3-C10 cycloalkenylene group, a substituted or unsubstituted C2-C10 heterocycloalkenylene group, a substituted or unsubstituted C6-C60 arylene group, or a substituted or unsubstituted C2-C60 heteroarylene group;
• a1 to a3 are each independently an integer of 0 to 5;
• R1 to R8 are each independently selected from hydrogen, a deuterium, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine, a hydrazone, a carboxylic acid group or a salt thereof, a sulfonic acid group 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, or a substituted or unsubstituted C2-C60 heteroaryl group;
• b1 and b4 are each independently an integer of 1 to 4;
• b2 and b3 are each independently an integer of 1 to 3;
• and
• in Formula 3,
• R121 to R124 are each independently selected from hydrogen, a deuterium, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine, a hydrazone, a carboxylic acid group or a salt thereof, a sulfonic acid group 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-C60 cycloalkyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C6-C60 aryloxy group, or a substituted or unsubstituted C6-C60 arylthio group.