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Abstract Covalent organic frameworks (COFs) are porous materials with good crystallinity, highly ordered stacking, tunable channels, and diverse functional groups that have been demonstrated to show great potential applications in flexible electronic devices, including flexible energy storage devices (batteries and supercapacitors), memristors and sensors. Although great research progress on the usage of COFs as active elements in flexible electronics has been witnessed, the summary in this direction is rare. Thus, it is the right time to write a review on COFs‐based flexible electronics. In this review, we will first discuss the different synthesis strategies to prepare COF materials. Then, the applications of COFs in flexible electronic devices are summarized. Finally, the future performance improvement and development directions of COFs in the field of flexible electronic devices are briefly outlined. This review could provide basic concepts and some guidelines to stimulate novel applications of COFs in diverse flexible electronic devices.
Wu et al. (Mon,) studied this question.