Abstract
Electroactive covalent organic frameworks: a new choice for organic electronics
Highlights
Covalent organic frameworks (COFs) feature covalent bond-supported crystallinity along with high encapsulating and mass transport abilities
Unlike densely packed organic and polymer layers that are used in organic electronics, the crystallinity of COFs is mostly supported by covalent bonds that potentially boost communication and stability
Concluding remarks The use of COFs as the active material in organic electronics offers the advantages of high crystallinity, low density, mechanical strength, and stability, high encapsulation, high mass diffusion, and high surface area for responsive sites
Summary
If the COF can transfer charges between two electrodes under bias voltage, it is electrically conductive and can be defined as a conductive COF. Mass transport within the tunnels of electroactive layers, which is uncommon for traditional conductive/semiconductive materials that are too densely packed to allow high mass diffusion of molecules. The precisely controlled pores of COFs provide a space for guest materials (e.g., dopants), which could interact with the COF host for property modification or to integrate multiple functionalities. Considering these benefits, electroactive COFs are an attractive alternative to traditional materials in a vast number of electronic applications.
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