A chiral polyfluorene–thiophene derivative incorporating two different chiral side chains was synthesized via the Suzuki coupling reaction. Upon photoexcitation, thin films of the polymer exhibited efficient circularly polarized luminescence in the visible range, even without thermal annealing. The dissymmetry factor, glum, of films with thicknesses less than 100 nm reached 0.2 at 505 nm.
通过铃木偶联反应合成了包含两个不同手性侧链的手性聚
芴-
噻吩衍
生物。在光激发下,聚合物薄膜在可见光范围内表现出高效的圆偏振发光,即使没有热退火。厚度小于100纳米的薄膜的不对称因子glum在505纳米处达到0.2。