State Key Laboratory of Supramolecular Structure and Materials;
College of Chemistry;
Jilin University;
Changchun;
130012;
P.R.China;
State Key Laboratory of Metastable Materials Science and Technology;
Yanshan University;
Qinhuangdao;
066004;
P.R.China;
Near-infrared emission; Aggregation-induced emission; High solid-state efficiency; Organic light-emitting diode;