Patent ID: 11925115
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Organic fine chemistry (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 11:
12. An organic light-emitting device comprising:
a first electrode;
a second electrode; and
an organic layer disposed between the first electrode and the second electrode and comprising an emission layer,
wherein the emission layer comprises a compound satisfying Condition 2 below:

0 eV<ΔEST2+E′TT≤1.0 eV,  <Condition 2>

wherein, in Condition 2,
ΔEST2 indicates the value obtained by subtracting a 2nd-lowest triplet excitation energy level calculated for a T2 equilibrium structure of the compound from the lowest singlet excitation energy level calculated for an S1 equilibrium structure of the compound and
ΔE′TT indicates the value obtained by subtracting the lowest triplet excitation energy level calculated for the T2 equilibrium structure of the compound from a 2nd-lowest triplet excitation energy level calculated for the T2 equilibrium structure of the compound.