Tuneable near white-emissive two-dimensional covalent organic frameworks

• Published in: Nature communications Vol. 9; no. 1; pp. 2335 - 9
• Main Authors: Li, Xing, Gao, Qiang, Wang, Juefan, Chen, Yifeng, Chen, Zhi-Hui, Xu, Hai-Sen, Tang, Wei, Leng, Kai, Ning, Guo-Hong, Wu, Jishan, Xu, Qing-Hua, Quek, Su Ying, Lu, Yixin, Loh, Kian Ping
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 13.06.2018; Nature Publishing Group; Nature Portfolio
• Subjects: 119/118; 140/131; 140/58; 147/135; 147/143; 639/301/357/537; 639/301/923/3931; 639/638/455/960; Chemical bonds; Emissivity; Emitters; Energy dissipation; Fluorescence; Humanities and Social Sciences; Hydrogen bonding; Hydrogen bonds; Interlayers; multidisciplinary; Photoluminescence; Photons; Rotation; Science; Science (multidisciplinary); Solid state; Stacking; Thermal energy

Most two-dimensional (2D) covalent organic frameworks (COFs) are non-fluorescent in the solid state even when they are constructed from emissive building blocks. The fluorescence quenching is usually attributed to non-irradiative rotation-related or π–π stacking-caused thermal energy dissipation pro...