Ultrapure deep-blue aggregation-induced emission and thermally activated delayed fluorescence emitters for efficient OLEDs with CIE_<i>y</i> &lt; 0.1 and low efficiency roll-offs

Abstract

Twisted rigid structures combined with short conjugation length building blocks provide an effective molecular design strategy for deep blue (CIE y &lt; 0.1) aggregation-induced emission and thermally activated delayed fluorescence emitters.