Circularly polarized luminescence (CPL) materials have received widespread attention due to their remarkable performance and broad applications. However, current CPL material research primarily focuses on tunable color, intensity, and reversibility. Constructing CPL with adjustable lifetime remains a significant challenge. Herein, a series of CPL polymeric materials with tunable lifetime were obtained by employing phosphorescent terephthalic acid and chiral organic small molecule R/S-BNAF (a luminescent binaphthol derivative) to copolymerize with acrylamide in different ratios. It was verified that this performance results from the different energy transfer efficiency between luminophores with varying ratios of the monomers for copolymerization. This strategy to realize CPL with tunable lifetime by modulating the energy transfer efficiency will provide a new perspective to broaden the applications of CPL materials.

圆偏振发光（CPL）材料因其卓越的性能和广泛的应用而受到广泛关注。然而，当前的 CPL 材料研究主要集中在可调颜色、强度和可逆性上。构建具有可调寿命的 CPL 仍然是一项重大挑战。在此，通过采用磷光对苯二甲酸和手性有机小分子R/S-BNAF（发光联萘酚衍生物）与丙烯酰胺以不同比例共聚，获得了一系列具有可调寿命的CPL聚合物材料。经证实，这种性能是由于不同共聚单体比例的发光体之间的能量转移效率不同所致。这种通过调节能量转移效率来实现寿命可调的CPL的策略将为拓宽CPL材料的应用提供新的视角。