Polymer carbon dots (PCDs) represent a new class of carbon dots (CDs) possessing sub‐fluorophores and unique polymer‐like structures. However, like small molecule dyes and traditional CDs, PCDs often suffer from self‐quenching effect in solid state, limiting their potential applications. Moreover, it is hard to prepare PCDs that have the same chemical structure, exhibiting full‐color emission under one fixed excitation wavelength by only modulating the concentration of the PCDs. Herein, self‐quenching‐resistant solid‐state fluorescent polymer carbon dots (SSFPCDs) are prepared, which exhibit strong red SSF without any other additional solid matrices, while having a large production yield (≈89%) and a considerable quantum yield of 8.50%. When dispersed in water or solid matrices in gradient concentrations, they can exhibit yellow, green, and blue fluorescence, realizing the first SSFPCDs with the same chemical structure emitting in full‐color range by changing the ratio of SSFPCDs to the solid matrices.

中文翻译：

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具有耐淬灭固态荧光的全色发射聚合物碳点

聚合物碳点（PCD）代表了一类新型碳点（CD），具有亚荧光团和独特的类聚合物结构。然而，与小分子染料和传统CD一样，PCD在固态下经常受到自猝灭效应的影响，限制了其潜在应用。此外，仅通过调节PCD的浓度很难制备出具有相同化学结构、在一种固定激发波长下表现出全色发射的PCD。本文制备了抗自猝灭固态荧光聚合物碳点（SSFPCD），其在没有任何其他额外固体基质的情况下表现出强红色SSF，同时具有很大的产率（约89%）和相当大的量子产率（8.50） %。当以梯度浓度分散在水或固体基质中时，它们可以发出黄色、绿色和蓝色荧光，通过改变SSFPCD与固体基质的比例，实现了第一个具有相同化学结构的全色范围内发光的SSFPCD。