Aggregation-Induced Emission (AIE) is a novel photophysicalphenomenon which offers a new platform for researchers to lookinto the light-emitting processes from luminogen aggregates, fromwhich useful information on structure-property relationshipsmay be collected and mechanistic insights may be gained. Thediscovery of the AIE effect opens a new avenue for the developmentof new luminogen materials in the aggregate or solid state. Byenabling light emission...