Achieving white-light emission, especially long-lived white circularly polarized luminescence, is challenging. Herein, chiral phosphorescent carbonized polymer dots (CPDs) have been prepared by using chiral polymer sodium alginate and chiral small molecule L-lysine as precursors. Benefiting from the efficient triplet-to-singlet phosphorescence resonance energy transfer (PRET), CPD-based long-lived warm white CPL has been achieved for the first time. This study provides a universal strategy for the convenient and efficient preparation of CPD-based long-lived white CPL materials.

中文翻译：

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通过磷光共振能量转移从碳化聚合物点实现长寿命的白色圆偏振发光

实现白光发射，特别是长寿命的白色圆偏振发光是具有挑战性的。本文以手性聚合物海藻酸钠和手性小分子L-赖氨酸为前驱体制备了手性磷光碳化聚合物点（CPD）。受益于高效的三重态到单重态磷光共振能量转移（PRET），首次实现了基于 CPD 的长寿命暖白光 CPL。该研究为方便、高效地制备基于 CPD 的长寿命白色 CPL 材料提供了一种通用策略。