Electrically conductive 2D covalent organic frameworks

Two-dimensional covalent organic frameworks (2D COFs) offer unique charge carrier transport pathways within their higher-ordered skeletons, resulting in remarkable electronic properties. 2D COFs enable precise alignment of electron-rich and/or electron-deficient aromatic arenes in a predesignable manner, which brings new design principles to achieve high conductivity and mobility and opens a new class of tailor-made conducting polymers. Herein, we conclude the progress of conductive COFs in the following three categories: (i) basic design principles, (ii) methods for evaluating electronic properties, and (iii) synthetic approaches to conductive COFs.