Highly efficient full-color solid-state fluorescent carbon dots (CDs) are very critical for the construction of light-emitting diodes (LEDs), especially white light-emitting diodes (WLEDs), but achieving them is still a challenging task due to the serious self-quenching of CDs in the aggregation state and their complicated photoluminescence (PL) mechanism. Herein, we reported a one-step microwave-assisted method for the large-scale synthesis of solid-state silane-functionalized CDs (SiCDs) with self-quenching resistant and tunable full-color fluorescence. By only controlling the ratio of precursors, the PL emission of these SiCDs can be tuned in the visible region ranging from 438 to 633 nm, accompanied by high quantum yields (QYs) of up to 26-57%. The multicolor emission of these SiCDs is ascribed to their differences in particle size and graphitic nitrogen content, which can be modulated by controlling the dehydration and condensation reactions among raw materials. In addition, based on their excellent optical properties, these SiCDs were directly utilized as phosphors combing with ultraviolet chips to prepare full-color LEDs and all types of WLEDs with adjustable correlated color temperature (CCT) from 3678 to 8158 K and high color rendering index (CRI) of 90–94, demonstrating the tremendous potential for practical lighting applications.

高效全彩色固态荧光碳点（CD）对于构建发光二极管（LED），尤其是白光发光二极管（WLED）非常关键，但实现它们仍然是一项具有挑战性的任务，因为聚合状态下 CD 的严重自猝灭及其复杂的光致发光 (PL) 机制。在此，我们报道了一种一步微波辅助方法，用于大规模合成具有自猝灭性和可调谐全色荧光的固态硅烷功能化 CD (SiCD)。通过仅控制前体的比例，这些 SiCD 的 PL 发射可以在 438 至 633 nm 的可见光区域进行调谐，同时量子产率 (QY) 高达 26-57%。这些 SiCD 的多色发射归因于它们在粒径和石墨氮含量方面的差异，这可以通过控制原料之间的脱水和缩合反应来调节。此外，基于其优异的光学性能，这些SiCDs直接用作荧光粉与紫外芯片结合制备全色LED和相关色温（CCT）从3678到8158K可调且显色指数高的各类WLED。 (CRI) 为 90–94，展示了实际照明应用的巨大潜力。