Abstract: When ?EST of at least one of a donor compound and an acceptor compound to form an exciplex is 0.35 eV or less, the driving lifetime of an exciplex light-emitting device can be improved.

Abstract: A nanoparticle conjugate includes a quantum dot (QD) and a thermally activated delayed fluorescence (TADF) molecule bound to the QD. In some instances, the TADF molecule can be directly bound to a surface of the QD. In other instances, the TADF molecule can be indirectly bound to the QD via an interaction with one or more capping ligands disposed on a surface of the QD. Nanoparticle conjugates described herein can be incorporated into emissive layers of electroluminescent light-emitting diode devices to yield electroluminescent quantum dot-containing light-emitting diode (QD-LED) devices.

Abstract: The present disclosure relates to compounds of Formula (I)-(V) as compounds capable of emitting delayed fluorescence and uses of these compounds in organic light-emitting diodes.

Abstract: The present disclosure relates to compounds of Formula (I) and (II): as compounds capable of emitting delayed fluorescence, and uses of the compounds in organic light-emitting diodes.

Abstract: The present disclosure relates in part to compounds capable of emitting delayed fluorescence and uses of these compounds in organic light-emitting diodes.

Abstract: An organic light emitting element produced by using a light emitting composition that contains both a first compound having a PBHT value more than 0.730 and a second compound having ES1 lower than that of the first compound and AEsT less than 0.20 eV is excellent in durability. ES1 is the lowest excited singlet energy level, AEsT is the difference between the lowest excited singlet energy level and the lowest excited triplet energy level.

Abstract: A light emitting material containing an adjustment compound N in addition to a donor compound D and an acceptor compound A that form an exciplex and satisfying HOMO(D)>HOMO(N)>HOMO(A), LUMO(D)>LUMO(N)+0.1 eV and LUMO(N)>LUMO(A) has improved luminous efficiency or emission lifetime.

Abstract: The present disclosure relates to compounds capable of emitting delayed fluorescence, and uses of the compounds in organic light-emitting diodes.

Abstract: The present disclosure relates to compounds of Formula (I) as useful materials for OLED's. X is O or S; Y1 to Y4 are N or R—C; at least one of R and R5 to R8 is CN or heteroaryl; and at least other one of R and R5 to R8 is diarylamino.

Abstract: The present disclosure relates in parts to compounds capable of emitting delayed fluorescence and uses of these compounds in organic light-emitting diodes.

Abstract: The present disclosure relates to compounds capable of emitting delayed fluorescence, and uses of these compounds in organic light-emitting diodes.

Abstract: The present disclosure relates to compounds capable of emitting delayed fluorescence and uses of these compounds in organic light-emitting diodes.

Abstract: The present disclosure relates to compounds of Formula I) as useful materials for OLED's. X1, X2 and X3 are N or C(R5); Ar1 and Ar2 are aryl, heteroaryl or cyano; L1 is single bond, arylene or heteroarylene; and R1, R2, R3 and R4 are diarylamino, carbazolyl, heteroaryl, H or alkyl.

Abstract: An organic light emitting device having an exciton generation layer that contains a compound having a difference between the lowest excited singlet energy level ES1 and the lowest excited triplet energy level ET1 thereof of 0.3 eV or less, or an exciplex to emit delayed fluorescence, and a light emitting layer that contains a light emitting material has a high efficiency and a long lifetime.

Abstract: An organic light-emitting device having an organic mixed layer that contains a first organic compound and a second organic compound and a third organic compound satisfying ES1(A)>ES1(B)>ES1(C). ES1(A), ES1(B) and ES1(C) each represent a lowest excited singlet energy level of the first organic compound, the second organic compound and the third organic compound, respectively. The second organic compound and the third organic compound are delayed fluorescent materials. The invention provides an organic light-emitting device having a long lifetime and a high light emission efficiency.

Abstract: The present disclosure relates to compounds of formula (I) as compounds capable of emitting delayed fluorescence and uses of these compounds in organic light-emitting diodes.

Abstract: A nanoparticle conjugate includes a quantum dot (QD) and a thermally activated delayed fluorescence (TADF) molecule bound to the QD. In some instances, the TADF molecule can be directly bound to a surface of the QD. In other instances, the TADF molecule can be indirectly bound to the QD via an interaction with one or more capping ligands disposed on a surface of the QD. Nanoparticle conjugates described herein can be incorporated into emissive layers of electroluminescent light-emitting diode devices to yield electroluminescent quantum dot-containing light-emitting diode (QD-LED) devices.

Abstract: The present disclosure relates to compounds of Formula (I) as useful materials for OLED's. At least two of Z1, Z2, Z3, Z4 and Z5 are CN, cyanoaryl, or heteroaryl having at least one nitrogen atom as a ring-constituting atom; and at least two of R1, R2, R3 and R4 are diarylamino, indolyl or carbazolyl.

Abstract: The present disclosure relates to compounds of Formula (I): C-D??(I) as compounds capable of emitting delayed fluorescence, and uses of the compounds in organic light-emitting diodes.

Abstract: An organic light emitting device having an exciton generation layer that contains a compound having a difference between the lowest excited singlet energy level ES1 and the lowest excited triplet energy level ET1 thereof of 0.3 eV or less, or an exciplex to emit delayed fluorescence, and a light emitting layer that contains a light emitting material has a high efficiency and a long lifetime.