Fig. 3From: Promising applications of aggregation-induced emission luminogens in organic optoelectronic devicesa Typical energy level characteristics of a HLCT emitter with a “hot exciton” channel; b the long-short axis design based on phenanthroimidazole. c Construction of the LE state and the CT state in ppCTPI. Reprinted with permission from ref. [37] Copyright 2019 Royal Society of ChemistryBack to article page