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An AIEgen-based 3D covalent organic framework for white light-emitting diodes

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 m(2) g(−1)). According to powder X-ray diffraction and con...

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Detalles Bibliográficos
Autores principales: Ding, Huimin, Li, Jian, Xie, Guohua, Lin, Guiqing, Chen, Rufan, Peng, Zhengkang, Yang, Chuluo, Wang, Baoshan, Sun, Junliang, Wang, Cheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6286360/
https://www.ncbi.nlm.nih.gov/pubmed/30532031
http://dx.doi.org/10.1038/s41467-018-07670-4
Descripción
Sumario: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 m(2) 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.