Journal
NATURE REVIEWS MATERIALS
Volume 8, Issue 1, Pages 41-53Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41578-022-00473-6
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The doping or alteration of crystals to obtain desired properties has been a research frontier in materials science. However, the closely packed lattice structure in many crystals has limited the applicability of this strategy. The advent of 2D layered materials has revitalized interest in utilizing this approach through gating and intercalation, allowing reversible modulation of the host material's properties without breaking chemical bonds. These techniques have also enabled the synthesis of new hybrid materials.
The doping or the alteration of crystals with guest species to obtain desired properties has long been a research frontier in materials science. However, the closely packed lattice structure in many crystals has limited the applicability of this strategy. The advent of 2D layered materials has led to revitalized interest in utilizing this approach through two important strategies, gating and intercalation, offering reversible modulation of the properties of the host material without breaking chemical bonds. In addition, these dynamically tunable techniques have enabled the synthesis of new hybrid materials. Here, we review how interactions between guest species and host 2D materials can tune the physics and chemistry of materials and discuss their remarkable potential for creating artificial materials and architectures beyond the reach of conventional methods. Introduction of guest species into archetype materials lays out a foundational pathway for creating new materials classes with desired functionalities. This Review discusses two main strategies of such applied to 2D layered materials: gating, where the guest species rest on the surface, and intercalation, where the guest species are incorporated into the host lattice.
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