Patent Number: 
Section: claims

1. A compound represented by Chemical Formula 1:wherein, in Chemical Formula 1,X1 is one of S, Se, Te, O, S(═O), S(═O)2, NRa1, SiRb1Rc1, or GeRd1Re1, wherein Ra1, Rb1, Rc1, Rd1, and Re1 are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group,Ar is an aromatic ring group including N and X2, wherein X2 is one of S, Se, Te, S(═O), S(═O)2, N, NRa2, CRb2, CRc2Rd2, SiRe2Rf2, or GeRg2Rh2, and Ra2, Rb2, Rc2, Rd2, Re2, Rf2, Rg2, and Rh2 are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group,R1 to R3 are independently one of hydrogen, deuterium, a substituted C1 to C30 alkyl group, an unsubstituted C1 to C30 alkyl group, a substituted C1 to C30 alkoxy group, an unsubstituted C1 to C30 alkoxy group, a substituted C6 to C30 aryl group, an unsubstituted C6 to C30 aryl group, a substituted C3 to C30 heteroaryl group, an unsubstituted C3 to C30 heteroaryl group, a substituted C2 to C30 acyl group, an unsubstituted C2 to C30 acyl group, a halogen, a cyano group (—CN), a cyano-containing group, a nitro group, —SiRaRbRc, or a combination thereof, wherein Ra, Rb, and Rc are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group, andY is a functional group represented by Chemical Formula 2A,wherein, in Chemical Formula 2A,Ar1 and Ar2 are independently one of a substituted C6 to C30 aryl group, an unsubstituted C6 to C30 aryl group, a substituted C3 to C30 heteroaryl group, or an unsubstituted C3 to C30 heteroaryl group. 2. The compound of claim 1, wherein in Chemical Formula 1, Ar is represented by one of the structures in Chemical Formula 3A:wherein, in Chemical Formula 3A,X2a is one of S, Se, Te, S(═O), S(═O)2, NRa2, CRc2Rd2, SiRe2Rf2, or GeRg2Rh2, wherein, Ra2, Rc2, Rd2, Re2, Rf2, Rg2, and Rh2 are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group, andR11 to R16 are independently one of hydrogen, deuterium, a substituted C1 to C30 alkyl group, an unsubstituted C1 to C30 alkyl group, a substituted C1 to C30 alkoxy group, an unsubstituted C1 to C30 alkoxy group, a substituted C6 to C30 aryl group, an unsubstituted C6 to C30 aryl group, a substituted C3 to C30 heteroaryl group, an unsubstituted C3 to C30 heteroaryl group, a substituted C2 to C30 acyl group, an unsubstituted C2 to C30 acyl group, a halogen, a cyano group (—CN), a cyano-containing group, a nitro group, —SiRaRbRc, or a combination thereof wherein Ra, Rb, and Rc are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group, wherein R11 to R16 are independently present or an adjacent two thereof are linked with each other to provide a fused ring. 3. The compound of claim 1, wherein in Chemical Formula 1, Ar is represented by one of the structures in Chemical Formula 3B:wherein, in Chemical Formula 3B,X2b is one of N or CRb2, wherein, Rb2 is one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group, andR11 to R17 are independently one of hydrogen, deuterium, a substituted C1 to C30 alkyl group, an unsubstituted C1 to C30 alkyl group, a substituted C1 to C30 alkoxy group, an unsubstituted C1 to C30 alkoxy group, a substituted C6 to C30 aryl group, an unsubstituted C6 to C30 aryl group, a substituted C3 to C30 heteroaryl group, an unsubstituted C3 to C30 heteroaryl group, a substituted C2 to C30 acyl group, an unsubstituted C2 to C30 acyl group, a halogen, a cyano group (—CN), a cyano-containing group, a nitro group, —SiRaRbRc, or a combination thereof wherein Ra, Rb, and Rc are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group, wherein R11 to R17 are independently present or an adjacent two thereof are linked with each other to provide a fused ring. 4. The compound of claim 1, wherein in Chemical Formula 1, Ar is represented by one of the structures in Chemical Formula 3C:wherein, in Chemical Formula 3C,X2b is N, andR11 to R17 are independently one of hydrogen, deuterium, a substituted C1 to C30 alkyl group, an unsubstituted C1 to C30 alkyl group, a substituted C1 to C30 alkoxy group, an unsubstituted C1 to C30 alkoxy group, a substituted C6 to C30 aryl group, an unsubstituted C6 to C30 aryl group, a substituted C3 to C30 heteroaryl group, an unsubstituted C3 to C30 heteroaryl group, a substituted C2 to C30 acyl group, an unsubstituted C2 to C30 acyl group, a halogen, a cyano group (—CN), a cyano-containing group, a nitro group, —SiRaRbRc, or a combination thereof, wherein Ra, Rb, and Rc are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group, wherein R11 to R17 are independently present or an adjacent two thereof are linked with each other to provide a fused ring. 5. The compound of claim 1, wherein in Chemical Formula 1, Ar is represented by one of the structures in Chemical Formula 3D:wherein, in Chemical Formula 3D,X2b is N, andR11 to R17 are independently one of hydrogen, deuterium, a substituted C1 to C30 alkyl group, an unsubstituted C1 to C30 alkyl group, a substituted C1 to C30 alkoxy group, an unsubstituted C1 to C30 alkoxy group, a substituted C6 to C30 aryl group, an unsubstituted C6 to C30 aryl group, a substituted C3 to C30 heteroaryl group, an unsubstituted C3 to C30 heteroaryl group, a substituted C2 to C30 acyl group, an unsubstituted C2 to C30 acyl group, a halogen, a cyano group (—CN), a cyano-containing group, a nitro group, —SiRaRbRc, or a combination thereof wherein Ra, Rb, and Rc are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group, wherein R11 to R17 are independently present or an adjacent two thereof are linked with each other to provide a fused ring. 6. The compound of claim 1, wherein in Chemical Formula 1, Ar is represented by Chemical Formula 3E:wherein, in Chemical Formula 3E,R11 and R12 are independently one of hydrogen, deuterium, a substituted C1 to C30 alkyl group, an unsubstituted C1 to C30 alkyl group, a substituted C1 to C30 alkoxy group, an unsubstituted C1 to C30 alkoxy group, a substituted C6 to C30 aryl group, an unsubstituted C6 to C30 aryl group, a substituted C3 to C30 heteroaryl group, an unsubstituted C3 to C30 heteroaryl group, a substituted C2 to C30 acyl group, an unsubstituted C2 to C30 acyl group, a halogen, a cyano group (—CN), a cyano-containing group, a nitro group, —SiRaRbRc, or a combination thereof wherein Ra, Rb, and Rc are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group. 7. The compound of claim 1, wherein, in Chemical Formula 2A, at least one of Ar1 and Ar2 comprises a heteroatom selected from nitrogen (N), sulfur (S), and selenium (Se). 8. The compound of claim 1, wherein in Chemical Formula 1, Y is represented by Chemical Formula 2A-1 or Chemical Formula 2A-2:wherein, in Chemical Formula 2A-1,X3a, X3b, X3c, X4a, X4b, and X4c are independently one of N or CRa, wherein Ra is one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group,R21, R22, R23, and R24 are independently one of hydrogen, deuterium, a substituted C1 to C30 alkyl group, an unsubstituted C1 to C30 alkyl group, a substituted C1 to C30 alkoxy group, an unsubstituted C1 to C30 alkoxy group, a substituted C6 to C30 aryl group, an unsubstituted C6 to C30 aryl group, a substituted C3 to C30 heteroaryl group, an unsubstituted C3 to C30 heteroaryl group, a halogen, a cyano group (—CN), a cyano-containing group, or a combination thereof, anda and b are independently an integer of 0 or 1,wherein, in Chemical Formula 2A-2,X3a, X3b, X4a, and X4b are independently one of N or CRa, wherein Ra is one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group,R21, R22, R23, R24, and R25 are independently one of hydrogen, deuterium, a substituted C1 to C30 alkyl group, an unsubstituted C1 to C30 alkyl group, a substituted C1 to C30 alkoxy group, an unsubstituted C1 to C30 alkoxy group, a substituted C6 to C30 aryl group, an unsubstituted C6 to C30 aryl group, a substituted C3 to C30 heteroaryl group, an unsubstituted C3 to C30 heteroaryl group, a halogen, a cyano group (—CN), a cyano-containing group, or a combination thereof, anda and b are independently an integer of 0 or 1. 9. The compound of claim 1, wherein the compound is represented by one of the structures in Chemical Formula 4-1:wherein, in Chemical Formula 4-1,X1 is one of S, Se, Te, O, S(═O), S(═O)2, NRa1, SiRb1Rc1, or GeRd1Re1, wherein Ra1, Rb1, Rc1, Rd1, and Re1 are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group,X2 is one of S, Se, Te, S(═O), S(═O)2, N, NRa2, CRb2, CRc2Rd2, SiRe2Rf2, or GeRg2Rh2, wherein Ra2, Rb2, Rc2, Rd2, Re2, Rf2, Rg2, and Rh2 are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group,R1 to R3 are independently one of hydrogen, deuterium, a substituted C1 to C30 alkyl group, an unsubstituted C1 to C30 alkyl group, a substituted C1 to C30 alkoxy group, an unsubstituted C1 to C30 alkoxy group, a substituted C6 to C30 aryl group, an unsubstituted C6 to C30 aryl group, a substituted C3 to C30 heteroaryl group, an unsubstituted C3 to C30 heteroaryl group, a substituted C2 to C30 acyl group, an unsubstituted C2 to C30 acyl group, a halogen, a cyano group (—CN), a cyano-containing group, a nitro group, —SiRaRbRc, or a combination thereof, wherein Ra, Rb, and Rc are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group,R11 to R16 are independently one of hydrogen, deuterium, a substituted C1 to C30 alkyl group, an unsubstituted C1 to C30 alkyl group, a substituted C1 to C30 alkoxy group, an unsubstituted C1 to C30 alkoxy group, a substituted C6 to C30 aryl group, an unsubstituted C6 to C30 aryl group, a substituted C3 to C30 heteroaryl group, an unsubstituted C3 to C30 heteroaryl group, a substituted C2 to C30 acyl group, an unsubstituted C2 to C30 acyl group, a halogen, a cyano group (—CN), a cyano-containing group, a nitro group, —SiRaRbRc, wherein Ra, Rb, and Rc are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group, or a combination thereof, wherein R11 to R16 are independently present or an adjacent two thereof are linked with each other to provide a fused ring,R21, R22, R23, and R24 are independently one of hydrogen, deuterium, a substituted C1 to C30 alkyl group, an unsubstituted C1 to C30 alkyl group, a substituted C1 to C30 alkoxy group, an unsubstituted C1 to C30 alkoxy group, a substituted C6 to C30 aryl group, an unsubstituted C6 to C30 aryl group, a substituted C3 to C30 heteroaryl group, an unsubstituted C3 to C30 heteroaryl group, a halogen, a cyano group (—CN), a cyano-containing group, or a combination thereof. 10. The compound of claim 1, wherein the compound has a maximum absorption wavelength (λmax) in a wavelength region of about 500 nm to about 560 nm. 11. The compound of claim 1, wherein the compound has a maximum absorption wavelength (λmax) in a wavelength region of about 510 nm to about 550 nm. 12. The compound of claim 1, wherein the compound exhibits a light absorption curve having a full width at half maximum (FWHM) of about 50 nm to about 120 nm, in a thin film state. 13. The compound of claim 1, wherein a deposition temperature at which 10 wt % of an initial weight of the compound is lost is greater than or equal to about 230° C. 14. An organic photoelectric device, comprising:a first electrode;a second electrode facing the first electrode; andan active layer between the first electrode and the second electrode,wherein the active layer includes the compound of claim 1. 15. An image sensor comprising:the organic photoelectric device of claim 14. 16. The image sensor of claim 15, further comprising:a semiconductor substrate integrated with a plurality of first photo-sensing devices configured to sense light in a blue wavelength region and a plurality of second photo-sensing devices configured to sense light in a red wavelength region,wherein the organic photoelectric device is on the semiconductor substrate and configured to selectively sense light in a green wavelength region. 17. The image sensor of claim 16, further comprising:a color filter layer between the semiconductor substrate and the organic photoelectric device, whereinthe color filter layer includes a blue filter and a red filter,the blue filter is configured to selectively transmit light in a blue wavelength region, andthe red filter is configured to selectively transmit light in a red wavelength region. 18. The image sensor of claim 16, wherein the first photo-sensing device and the second photo-sensing device are stacked in a vertical direction in the semiconductor substrate. 19. The image sensor of claim 15, further comprising:a blue photoelectric device;a red photoelectric device, whereinthe organic photoelectric device includes a green photoelectric device,the green photoelectric device, the blue photoelectric device, and the red photoelectric device are stacked,the green photoelectric device is configured to selectively sense light in a green wavelength region,the blue photoelectric device is configured to selectively sense light in a blue wavelength region, andthe red photoelectric device is configured to selectively sense light in a red wavelength region. 20. An electronic device comprising:the image sensor of claim 15. 21. A compound represented by Chemical Formula 1:wherein, in Chemical Formula 1,X1 is one of S, Se, Te, O, S(═O), S(═O)2, NRa1, SiRb1Rc1, or GeRd1Re1, wherein Ra1, Rb1, Rc1, Rd1, and Re1 are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group,R1 to R3 are independently one of hydrogen, deuterium, a substituted C1 to C30 alkyl group, an unsubstituted C1 to C30 alkyl group, a substituted C1 to C30 alkoxy group, an unsubstituted C1 to C30 alkoxy group, a substituted C6 to C30 aryl group, an unsubstituted C6 to C30 aryl group, a substituted C3 to C30 heteroaryl group, an unsubstituted C3 to C30 heteroaryl group, a substituted C2 to C30 acyl group, an unsubstituted C2 to C30 acyl group, a halogen, a cyano group (—CN), a cyano-containing group, a nitro group, —SiRaRbRc, or a combination thereof, wherein Ra, Rb, and Rc are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group, andY is a functional group represented by Chemical Formula 2A,wherein, in Chemical Formula 2A,Ar1 and Ar2 are independently one of a substituted C6 to C30 aryl group, an unsubstituted C6 to C30 aryl group, a substituted C3 to C30 heteroaryl group, or an unsubstituted C3 to C30 heteroaryl group,wherein, in Chemical Formula 1, Ar includes one of the structures represented by Chemical Formulae 3A to 3E,wherein, in Chemical Formula 3A,X2a is one of S, Se, Te, S(═O), S(═O)2, NRa2, CRc2Rd2, SiRe2Rf2, or GeRg2Rh2, wherein, Ra2, Rc2, Rd2, Re2, Rf2, Rg2, and Rh2 are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group,wherein, in Chemical Formula 3B,X2b is one of N or CRb2, wherein, Rb2 is one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group, andwherein, in Chemical Formulae 3C and 3D,X2b is N, andwherein, in Chemical Formulae 3A to 3E,R11 to R17 are independently one of hydrogen, deuterium, a substituted C1 to C30 alkyl group, an unsubstituted C1 to C30 alkyl group, a substituted C1 to C30 alkoxy group, an unsubstituted C1 to C30 alkoxy group, a substituted C6 to C30 aryl group, an unsubstituted C6 to C30 aryl group, a substituted C3 to C30 heteroaryl group, an unsubstituted C3 to C30 heteroaryl group, a substituted C2 to C30 acyl group, an unsubstituted C2 to C30 acyl group, a halogen, a cyano group (—CN), a cyano-containing group, a nitro group, —SiRaRbRc, or a combination thereof wherein Ra, Rb, and Rc are independently one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group, andwherein, in Chemical Formulae 3A to 3D,R11 to R17 are independently present or an adjacent two thereof are linked with each other to provide a fused ring. 22. The compound of claim 21, wherein,in Chemical Formula 2A, at least one of Ar1 and Ar2 comprises a heteroatom selected from nitrogen (N), sulfur (S), and selenium (Se). 23. The compound of claim 21, wherein in Chemical Formula 1, Y is represented by Chemical Formula 2A-1 or Chemical Formula 2A-2wherein, in Chemical Formula 2A-1 or Chemical Formula 2A-2,X3a, X3b, X3c, X4a, X4b, and X4c are independently one of N or CRa, wherein Ra is one of hydrogen, a substituted C1 to C10 alkyl group, or an unsubstituted C1 to C10 alkyl group,wherein, Chemical Formula 2A-1 or Chemical Formula 2A-2,R21 to R25 are independently one of hydrogen, deuterium, a substituted C1 to C30 alkyl group, an unsubstituted C1 to C30 alkyl group, a substituted C1 to C30 alkoxy group, an unsubstituted C1 to C30 alkoxy group, a substituted C6 to C30 aryl group, an unsubstituted C6 to C30 aryl group, a substituted C3 to C30 heteroaryl group, an unsubstituted C3 to C30 heteroaryl group, a halogen, a cyano group (—CN), a cyano-containing group, or a combination thereof,a and b are independently an integer of 0 or 1. 24. An organic photoelectric device, comprising:the compound of claim in an active layer;a first electrode; anda second electrode facing the first electrode, whereinthe active layer is between the first electrode and the second electrode. 25. An image sensor comprising:the organic photoelectric device of claim 2; anda substrate, whereinthe organic photoelectric device is on the substrate.