The design and synthesis of three-dimensional covalent organic frameworks (3D COFs) have still been considered as a big challenge. Here we report the design and synthesis of an AIEgen-based 3D COF (3D-TPE-COF), with a high surface area (1084 m² g^-1). According to powder X-ray diffraction and continuous rotation electron diffraction analyses, 3D-TPE-COF is identified to adopt a seven-fold interpenetrated pts topology. Interestingly, 3D-TPE-COF emits yellow fluorescence upon excitation, with a photoluminescence quantum yield of 20%. Moreover, by simply coating 3D-TPE-COF onto a commercial blue light-emitting diode (LED), a prototype white LED (WLED) under continuously driving without degradation for 1200 h was demonstrated. The present work suggests the possibility of using COF materials for stable WLEDs, which will greatly inspire us to design and synthesize fluorescent 3D COFs and facilitate the development of COF-based WLEDs in future.

中文翻译：

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基于AIEgen的3D共价有机框架，用于发白光的二极管。

三维共价有机骨架（3D COF）的设计和合成仍被认为是一个巨大的挑战。在这里，我们报告基于AIEgen的3D COF（3D-TPE-COF）具有高表面积（1084 m ²  g ^-1）的设计和合成）。根据粉末X射线衍射和连续旋转电子衍射分析，确定3D-TPE-COF采用七倍互穿的pts拓扑。有趣的是，3D-TPE-COF激发后会发出黄色荧光，光致发光的量子产率为20％。此外，通过简单地将3D-TPE-COF涂覆到商用蓝色发光二极管（LED）上，展示了在连续驱动下经过1200 h不变的原型白色LED（WLED）。目前的工作表明了将COF材料用于稳定的WLED的可能性，这将极大地启发我们设计和合成荧光3D COF，并促进将来基于COF的WLED的开发。