Chiral supramolecular assembly has been assigned to be one of the most favorable strategies for the development of excellent circularly polarized luminescent (CPL)-active materials. Herein, we report our study of an achiral boron-containing pyrene (Py)-based chromophore (PyBO) as a circularly polarized excimer emission (CPEE) dye induced by chiral co-assemblies containing chiral binaphthyl-based enantiomers (R/S-M). Chiral co-assembly R/S-M-(PyBO)₄ fresh film spin-coated from toluene solution can exhibit orderly nanofibers and strong green CPEE (λ_em = 512 nm, g_em = ±0.45, Φ_FL = 51.2 %) resulting from an achiral PyBO excimer. In contrast, only a very weak blue CPL was observed (λ_em = 461 nm, g_em = ± 0.0125, Φ_FL = 19.0 %) after 187 h due to PyBO monomer emission as spherulite growth. Interestingly, this kind of chiral co-assembly R-M-(PyBO)₄-T film from tetrahydrofuran (THF) solution retains uniform morphology and affords the most stable and strongest CPEE performance (λ_em = 512 nm, g_em = + 0.62, Φ_FL = 53.3 %) after 10 days.

手性超分子组装已被认为是开发优异的圆偏振发光（CPL）活性材料的最有利策略之一。在此，我们报告了我们对非手性含硼芘（Py）基发色团（PyBO）作为圆偏振准分子发射（CPEE）染料的研究，该染料由含有手性联萘基对映体（ R / S -M）的手性共组装体诱导）。由甲苯溶液旋涂的手性共组装体R / S -M-(PyBO) ₄新鲜薄膜可以表现出有序的纳米纤维和强绿色 CPEE (λ _em = 512 nm, g _em = ±0.45, Φ _FL = 51.2 %)来自非手性 PyBO 准分子。相反，由于球晶生长时 PyBO 单体发射，187 小时后仅观察到非常弱的蓝色 CPL（λ _em = 461 nm， g _em = ± 0.0125， Φ _FL = 19.0 %）。有趣的是，这种由四氢呋喃（THF）溶液制备的手性共组装体R -M-(PyBO) ₄ -T薄膜保持了均匀的形貌，并提供了最稳定和最强的CPEE性能（λ _em = 512 nm， g _em = + 0.62 , Φ _FL = 53.3 %) 10 天后。