Substitution Effect on Carbazole-centered Donors for Tuning Exciplex Systems as Cohost for Highly Efficient Yellow and Red OLEDs

Three new carbazole-based hole-transporting materials PTCz-9’Cz, PTCz-3’TCz, and PTCz-NTol2 were synthesized, characterized, and examined the propensity of exciplex formation with electron-transporting material PO-T2T. Through enhancing the electron-donating ability of the...

Molecular Design of Thermally Activated Delayed Fluorescent Emitters for Narrowband Orange−Red OLEDs: Boosted by a Cyano-Functionalization Strategy

The establishment of simple molecular design strategy to realize red-shifted emission while maintaining good color purity for multi-resonance induced thermally activated delayed fluorescent (MR-TADF) materials remains an appealing yet challenging...

Organoboron compounds constructed through the tautomerization of 1H-indole to 3H-indole for red OLEDs

3H-Indole-containing emitters able to realize red fluorescent OLEDs possessing concurrently high efficiencies and good colour coordinates were synthesized through a tautomerization reaction.

Sky-blue delayed fluorescence molecules based on pyridine-substituted acridone for efficient organic light-emitting diodes

In comparison with green and red OLEDs, which have well developed with satisfactory electroluminescence (EL) performances, high-efficiency blue OLEDs still need further exploration. Herein, by reasonably strengthening the rigidity of...