Heteroatom-Doped Graphdiyne Enables Ferromagnetism of Carbon

Abstract

The rise and prosperity of graphdiyne have enriched the family of carbon materials.(1−4) As a carbon semiconductor material, its direct band gap, highly conjugated structure, and impressive intrinsic mobility are attractive features that give potential to various applications such as energy conversion and storage and spin transistors. The rapid development and broad application of graphdiyne materials have driven the exploration of its intrinsic properties and of regulating methods for its functional integration. Li and co-workers have developed an atomic-level functionalization strategy to introduce different light elements into graphdiyne to achieve a ferromagnetic semiconductor.(1) This work, like the construction of a pyramid (as shown in Figure 1a), is indispensable and precisely establishes the relationship between chemical doping and physical property control. It provides the fundamental understanding of graphdiyne’s ferromagnetic origin.