Carbonized polymer dots (CPDs) are impressive imaging probes with great potential for enriching the library of metal-free fluorescent materials, yet current strategies have struggled to achieve products that emit full-color light in a single reaction system. Establishing an efficient and robust synthesis approach that unlocks the color barrier to the luminescence centers of specific CPDs remains a challenge. Herein, the surface-state engineering of pyridine and amide in the indole system to create a palette of resolvable full-color light-emissive CPDs is reported. Detailed structural analysis revealed that cationic polymerization and oxidation reactions potentially contribute to the formation of the main frameworks and emission centers of the final CPDs, with emissive oxygen- and nitrogen-based centers fixed by cross-linked polymer structures. This study provides valuable insight into the energy absorbance and photoluminescence mechanism of CPDs and introduces additional reactants (benzo heterocycle) into CPD research.

碳化聚合物点（CPD）是令人印象深刻的成像探针，具有丰富无金属荧光材料库的巨大潜力，但是当前的策略一直难以在单个反应系统中实现发出全色光的产品。建立一种有效而稳健的合成方法来解锁特定CPD发光中心的色差仍然是一个挑战。在本文中，报道了吲哚系统中吡啶和酰胺的表面状态工程化以产生可分辨的全色发光CPD调色板。详细的结构分析表明，阳离子聚合和氧化反应可能有助于最终CPD的主要构架和发射中心的形成，而发射的基于氧和氮的中心则由交联的聚合物结构固定。