Light-emitting chiral carbonized polymer dots (Ch-CPDs) are attracting great interest because of their extraordinary photonic properties, but modulating their band-gap emission, especially at long wavelength, and maintaining their chiral structure to achieve multicolor, high-emission Ch-CPDs remains challenging. Reported here for the first time is the synthesis of red- and multicolor-emitting Ch-CPDs using the common precursors L-/D-tryptophan and o-phenylenediamine, and a solvothermal approach at one temperature. The quantum yield of the Ch-CPDs was between 31 % and 54 %. Supramolecular self-assembly provided multicolor-emitting Ch-CPDs showing novel circularly polarized luminescence, with the highest dissymmetric factor (g_lum) of 1×10⁻². Importantly, circularly polarized white-emitting CPDs were fabricated for the first time by tuning the mixing ratio of the three colored Ch-CPDs in a gel. This strategy affords exciting opportunities for designing functional chiroptical materials.

中文翻译：

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用于全色和白色圆偏振发光的多色发光手性碳化聚合物点的合理设计

发光手性碳化聚合物点（Ch-CPD）因其非凡的光子特性而引起了极大的兴趣，但可以调节其带隙发射，尤其是在长波长下，并保持其手性结构以实现多色、高发射的 Ch- CPD 仍然具有挑战性。这里首次报道了使用常见前体L -/ D - 色氨酸和邻苯二胺以及在一个温度下的溶剂热方法合成红色和多色发光 Ch-CPD 。Ch-CPD 的量子产率介于 31% 和 54% 之间。超分子自组装提供了多色发光 Ch-CPD，显示出新颖的圆偏振发光，具有最高的不对称因子（g _lum) 的 1×10 ^-2。重要的是，通过调整凝胶中三种有色 Ch-CPD 的混合比例，首次制造了圆偏振白光 CPD。这种策略为设计功能性手性光学材料提供了令人兴奋的机会。