Organic light-emitting device and electronic apparatus including the same

An organic light-emitting device comprising:

• an anode;
• a cathode;
• and
• an organic layer between the anode and the cathode and comprising an emission region,
• wherein:
• the emission region comprises a first emission layer, a second emission layer, and a first layer;
• the first emission layer comprises a first host and a first dopant;
• the second emission layer comprises a second host and a second dopant;
• the first layer is between the first emission layer and the second emission layer and comprises a first material;
• the first host comprises a first hole transport host and a first electron transport host;
• the second host comprises a second hole transport host and a second electron transport host;
• the first hole transport host and the second hole transport host are each independently a compound represented by one selected from Formulae 301-1 to 301-6;
• and
• the first electron transport host and the second electron transport host are each independently a compound represented by one selected from Formulae 301-7 to 301-9:
• in Formulae 301-1 to 301-9,
• A301 to A304 are each independently selected from a benzene group, a naphthalene group, a phenanthrene group, a fluoranthene group, a triphenylene group, a pyrene group, a chrysene group, a pyridine group, a pyrimidine group, an indene group, a fluorene group, a spiro-bifluorene group, a benzofluorene group, a dibenzofluorene group, an indole group, a carbazole group, a benzocarbazole group, a dibenzocarbazole group, a furan group, a benzofuran group, a dibenzofuran group, a naphthofuran group, a benzonaphthofuran group, a dinaphthofuran group, a thiophene group, a benzothiophene group, a dibenzothiophene group, a naphthothiophene group, a benzonaphthothiophene group, and a dinaphthothiophene group,
• X301 is O, S, or N-[(L304)xb4-R304],
• X302 is N or C(R311), X303 is N or C(R312), X304 is N or C(R313), and at least one selected from X302 to X304 is N,
• X305 is N or C(R311), X306 is N or C(R312), X307 is N or C(R313), X308 is N or C(R314), and at least one selected from X305 to X308 is N,
• Y301 and Y302 are each independently a single bond, O, S, N-[(L305)xb5-R305], or S(═O)2,
• xb21 to xb24 are each independently 0, 1, or 2,
• Ar301 is a substituted or unsubstituted C5-C60 carbocyclic group or a substituted or unsubstituted C1-C60 heterocyclic group,
• L301 to L305 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,
• xb1 to xb4 are each independently an integer from 0 to 5,
• xb5 is an integer from 1 to 5,
• R301 to R305 are each independently selected from deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, 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 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, —Si(Q301)(Q302)(Q303), —N(Q301)(Q302), —B(Q301)(Q302), —C(═O)(Q301), —S(═O)2(Q301), and —P(═O)(Q301)(Q302),
• R311 to R314 are each independently selected from hydrogen, deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a C1-C20 alkyl group, a C1-C20 alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, a naphthyl group, a dibenzofuranyl group, a dibenzothiophenyl group, —SH, —S(Q301), —Si(Q301)(Q302)(Q303), —N(Q301)(Q302), —B(Q301)(Q302), —C(═O)(Q301), —S(═O)2(Q301), and —P(═O)(Q301)(Q302),
• Q301 to Q303 are each independently selected from a C1-C10 alkyl group, a C1-C10 alkoxy group, a phenyl group, a biphenyl group, a terphenyl group, a pentalenyl group, an indenyl group, a naphthyl group, an azulenyl group, a heptalenyl group, an indacenyl group, an acenaphthenyl group, a fluorenyl group, a spiro-bifluorenyl group, a benzofluorenyl group, a dibenzofluorenyl group, a phenalenyl group, a phenanthrenyl group, an anthracenyl group, a fluoranthenyl group, a triphenylenyl group, a pyrenyl group, a chrysenyl group, a naphthacenyl group, a picenyl group, a perylenyl group, a pentaphenyl group, a hexacenyl group, a pentacenyl group, a rubicenyl group, a coronenyl group, an ovalenyl group, a thiophenyl group, a furanyl group, a carbazolyl group, an indolyl group, an isoindolyl group, a benzofuranyl group, a benzothiophenyl group, a dibenzofuranyl group, a dibenzothiophenyl group, a benzocarbazolyl group, a dibenzocarbazolyl group, a dibenzosilolyl group, and a pyridinyl group,
• two or more neighboring substituents selected from R301 to R303 and R311 to R313 in Formula 301-7 are optionally linked to form a substituted or unsubstituted C5-C60 carbocyclic group or a substituted or unsubstituted C1-C60 heterocyclic group, and
• two or more substituents selected from R311 to R314 in Formula 301-9 are optionally linked to form a substituted or unsubstituted C5-C60 carbocyclic group or a substituted or unsubstituted C1-C60 heterocyclic group.