Organic compound, optoelectronic device including the same, and electronic apparatus including the optoelectronic device

An optoelectronic device comprising:

• a first electrode;
• a second electrode facing the first electrode;
• an optical activation layer between the first electrode and the second electrode;
• and
• an organic compound represented by Formula 1:
• wherein in Formula 1,
• R1 to R5 are each independently hydrogen, deuterium, a C1-C15 alkyl group unsubstituted or substituted with at least one R0, a C1-C15 alkoxy group unsubstituted or substituted with at least one R0, or a C6-C15 aryl group unsubstituted or substituted with at least one R0,
• R0 is deuterium, a C1-C15 alkyl group, a C1-C15 alkoxy group, or a C6-C15 aryl group,
• L1 is a C3-C15 carbocyclic group unsubstituted or substituted with at least one R10a or a C1-C15 heterocyclic group unsubstituted or substituted with at least one R10a,
• a1 is an integer from 0 to 2,
• when a1 is 0, (L1)a1 is a single bond,
• when a1 is 2, two of L1 are identical to or different from each other, and
• Ar1 is a group represented by one of Formulae A1 to A3:
• wherein in Formulae A1 to A3,
• ring CY1 and ring CY2 are each independently a C3-C15 carbocyclic group unsubstituted or substituted with at least one R10a or a C1-C15 heterocyclic group unsubstituted or substituted with at least one R10a,
• Z1 to Z4 are each independently a cyano group, —F, —Cl, —Br, or —I,
• Y1 to Y3 are each independently O or S,
• * indicates a binding site to a neighboring atom, and
• R10a is:
• deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, or a nitro group;
• a C1-C15 alkyl group, a C2-C15 alkenyl group, a C2-C15 alkynyl group, or a C1-C15 alkoxy group, each unsubstituted or substituted with deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, a C3-C15 carbocyclic group, a C1-C15 heterocyclic group, a C6-C15 aryloxy group, a C6-C15 arylthio group, a C7-C15 arylalkyl group, a C2-15 heteroarylalkyl group, or a combination thereof;
• or
• a C3-C15 carbocyclic group, a C1-C15 heterocyclic group, a C6-C15 aryloxy group, a C6-C15 arylthio group, a C7-C15 arylalkyl group, or a C2-C15 heteroarylalkyl group, each unsubstituted or substituted with deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, a C1-C15 alkyl group, a C2-C15 alkenyl group, a C2-C15 alkynyl group, a C1-C15 alkoxy group, a C3-C15 carbocyclic group, a C1-C15 heterocyclic group, a C6-C15 aryloxy group, a C6-C15 arylthio group, a C7-C15 arylalkyl group, a C2-C15 heteroarylalkyl group, or a combination thereof.