Circularly and Linearly Polarized Luminescence from AIE Luminogens Induced by Super‐Aligned Assemblies of Sub‐1 nm Nanowires

Sub‐1 nm nanowires (SNWs) combine the properties of inorganic materials and polymers. They can be highly oriented through assembly, and can also be easily processed. Meanwhile, aggregation‐induced emission luminogens (AIEgens) show high potential for optical applications, but they are usually hard to process. The combination of SNWs and AIEgens can enrich both of their applications. In this study, we report that the fluorescence emission intensity of the AIEgens–SNW dispersion is dramatically enhanced due to the flexibility of SNWs. Furthermore, we fabricate two kinds of functional films with circularly polarized luminescence (CPL) and linearly polarized luminescence (LPL) activities. The construction of CPL materials didn't require any chiral chemicals. The construction of LPL materials didn't require an additional stretching process. As a result, we endowed common achiral AIEgens with a high dissymmetry factor of 0.033 and a polarization ratio of 0.44, respectively. Different optical functions were achieved by regulating the structures of the aggregation‐induced emission luminogens (AIEgens)–sub‐1 nm nanowire (SNW) co‐assemblies. The helical and parallel co‐assembly of AIEgens and SNWs lead to circularly polarized luminescence and linearly polarized luminescence activity, respectively.