Gao Hongze, Wang Zifan, Cao Jun, Lin Yuxuan Cosmi, Ling Xi
Department of Chemistry, Boston University 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States.
Department of Materials Science and Engineering, Texas A&M University 575 Ross Street, College Station, Texas 77843, United States.
ACS Nano. 2024 Jul 2;18(26):16343-16358. doi: 10.1021/acsnano.4c01177. Epub 2024 Jun 20.
Extending the inventory of two-dimensional (2D) materials remains highly desirable, given their excellent properties and wide applications. Current studies on 2D materials mainly focus on the van der Waals (vdW) materials since the discovery of graphene, where properties of atomically thin layers have been found to be distinct from their bulk counterparts. Beyond vdW materials, there are abundant non-vdW materials that can also be thinned down to 2D forms, which are still in their early stage of exploration. In this review, we focus on the downscaling of non-vdW materials into 2D forms to enrich the 2D materials family. This underexplored group of 2D materials could show potential promise in many areas such as electronics, optics, and magnetics, as has happened in the vdW 2D materials. Hereby, we will focus our discussion on their electronic properties and applications of them. We aim to motivate and inspire fellow researchers in the 2D materials community to contribute to the development of 2D materials beyond the widely studied vdW layered materials for electronic device applications. We also give our insights into the challenges and opportunities to guide researchers who are desirous of working in this promising research area.
鉴于二维（2D）材料具有优异的性能和广泛的应用，扩充其材料库仍然非常必要。自石墨烯被发现以来，当前对二维材料的研究主要集中在范德华（vdW）材料上，人们发现原子级薄层的性质与其体相材料截然不同。除了范德华材料之外，还有大量的非范德华材料也可以被制成二维形式，不过它们仍处于探索的初期阶段。在这篇综述中，我们重点关注将非范德华材料缩小为二维形式，以丰富二维材料家族。这一尚未得到充分探索的二维材料组可能在电子学、光学和磁学等许多领域展现出潜在的前景，就像范德华二维材料那样。在此，我们将把讨论重点放在它们的电子特性及应用上。我们旨在激励二维材料领域的同行们，为超越广泛研究的用于电子器件应用的范德华层状材料的二维材料的发展做出贡献。我们还对挑战和机遇给出了见解，以指导有志于在这一充满前景的研究领域开展工作的研究人员。
