Synthesis and tailored properties of covalent organic framework thin films and heterostructures |
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| Affiliation: | 1. Department of Chemistry, Faculty of Science, National University of Singapore, Singapore 117543, Singapore;2. Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Fuzhou 350207, China;1. Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, Frontiers Science Center for High Energy Material, Advanced Technology Research Institute (Jinan), School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China |
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| Abstract: | Porous polymeric covalent organic frameworks (COFs) have been under intense synthetic investigation with over 100 unique structural motifs known. In order to realize the true potential of these materials, converting the powders into thin films with strict control of thickness and morphology is necessary and accomplished through techniques including interfacial synthesis, chemical exfoliation and mechanical delamination. Recent progress in the construction and tailored properties of thin film COFs are highlighted in this review, addressing mechanical properties as well as application-focused properties in filtration, electronics, sensors, electrochemistry, magnetics, optoelectronics and beyond. Additionally, heterogeneous integration of these thin films with other inorganic and organic materials is discussed, revealing exciting opportunities to integrate COF thin films with other state of the art material and device systems. |
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| Keywords: | Covalent Organic Frameworks Polymer thin films Heterostructures 2D organic materials |
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