Polycyclic compound, light-emitting device and electronic device

A light-emitting device, comprising:

• a first electrode;
• a second electrode;
• and
• an intermediate disposed between the first electrode and the second electrode, the intermediate layer comprising at least one light-emitting structure that comprises a hole transfer region, an emission layer and an electron transfer region,
• wherein the hole transfer region includes a polycyclic compound represented by Chemical Formula 1 or Chemical Formula 2:
• wherein, in Chemical Formulae 1 and 2, Z1 to Z10 are each independently hydrogen, deuterium, —CN, —F, —Cl, —Br, —I, —SF5, —CD3, —CD2H, —CDH2, —CF3, —CF2H, —CFH2, 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 C1-C60 alkylthio group, a substituted or unsubstituted C3-C60 cycloalkyl group, a substituted or unsubstituted C5-C60 cycloalkenyl group, a substituted or unsubstituted C1-C60 heterocycloalkyl group, a substituted or unsubstituted C1-C60 heterocycloalkenyl group, a substituted or unsubstituted C6-C60 aryl group, a substituted or unsubstituted C7-C60 arylalkyl group, a substituted or unsubstituted C7-C60 alkyl aryl group, a substituted or unsubstituted C2-C60 heteroaryl group, a substituted or unsubstituted C2-C60 alkyl heteroaryl group, a substituted or unsubstituted C3-C60 heteroarylalkyl group, a substituted or unsubstituted C6-C60 aryloxy group, a substituted or unsubstituted C6-C60 arylthio group, a substituted or unsubstituted C8-C60 condensed polycyclic group, or a substituted or unsubstituted silyl group, and two or more adjacent groups among Z1 to Z10 are optionally combined to form a saturated ring or an unsaturated ring,
• at least one of Z1 to Z10 is from a substituted or unsubstituted biphenyl group, a substituted or unsubstituted terphenyl group, a substituted or unsubstituted dibenzofuran group, a substituted or unsubstituted dibenzothiophene group, or a substituted or unsubstituted carbazole group, and at least one of a remainder of Z1 to Z10 is an electron withdrawing group or a group substituted with an electron withdrawing group, and
• the electron-withdrawing group is a group having a para Hammett substituent constant (σp) of a Hammett rule greater than 0.