Dual<i>versus</i>normal TADF of pyridines ornamented with multiple donor moieties and their performance in OLEDs

Abstract

Pyridine ring in novel dicyanopyridines exists in a twist-conformation in solid state. Green and orange OLEDs with 3,6-di-<italic>tert</italic>-butyl-carbazole-containing emitter exhibiting normal TADF, showed high maximum EQE of 25%.