Please use this identifier to cite or link to this item: https://doi.org/10.1038/s41467-018-04769-6
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dc.titleTuneable near white-emissive two-dimensional covalent organic frameworks
dc.contributor.authorLi, Xing
dc.contributor.authorGao, Qiang
dc.contributor.authorWang, Juefan
dc.contributor.authorChen, Yifeng
dc.contributor.authorChen, Zhi-Hui
dc.contributor.authorXu, Hai-Sen
dc.contributor.authorTang, Wei
dc.contributor.authorLeng, Kai
dc.contributor.authorNing, Guo-Hong
dc.contributor.authorWu, Jishan
dc.contributor.authorXu, Qing-Hua
dc.contributor.authorQuek, Su Ying
dc.contributor.authorLu, Yixin
dc.contributor.authorLoh, Kian Ping
dc.date.accessioned2020-05-04T10:05:44Z
dc.date.available2020-05-04T10:05:44Z
dc.date.issued2018-06-13
dc.identifier.citationLi, 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 (2018-06-13). Tuneable near white-emissive two-dimensional covalent organic frameworks. NATURE COMMUNICATIONS 9 (1). ScholarBank@NUS Repository. https://doi.org/10.1038/s41467-018-04769-6
dc.identifier.issn2041-1723
dc.identifier.issn2041-1723
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/167667
dc.description.abstract© 2018 The Author(s). 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 process. Currently there is a lack of guiding principle on how to design fluorescent, solid-state material made of COF. Herein, we demonstrate that the eclipsed stacking structure of 2D COFs can be used to turn on, and tune, the solid-state photoluminescence from non-emissive building blocks by the restriction of intramolecular bond rotation via intralayer and interlayer hydrogen bonds among highly organized layers in the eclipse-stacked COFs. Our COFs serve as a platform whereby the size of the conjugated linkers and side-chain functionalities can be varied, rendering the emission colour-tuneable from blue to yellow and even white. This work provides a guide to design new solid-state emitters using COFs.
dc.language.isoen
dc.publisherNATURE PUBLISHING GROUP
dc.sourceElements
dc.subjectScience & Technology
dc.subjectMultidisciplinary Sciences
dc.subjectScience & Technology - Other Topics
dc.subjectCRYSTALLINE
dc.subjectSTACKING
dc.subjectHYDROGEN
dc.subjectSTORAGE
dc.typeArticle
dc.date.updated2020-05-04T07:01:50Z
dc.contributor.departmentCENTRE FOR ADVANCED 2D MATERIALS
dc.contributor.departmentDEPT OF CHEMICAL & BIOMOLECULAR ENGG
dc.contributor.departmentDEPT OF CHEMISTRY
dc.contributor.departmentDEPT OF PHYSICS
dc.description.doi10.1038/s41467-018-04769-6
dc.description.sourcetitleNATURE COMMUNICATIONS
dc.description.volume9
dc.description.issue1
dc.published.statePublished
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