Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA.
Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA.
Nat Mater. 2017 Feb;16(2):170-181. doi: 10.1038/nmat4703. Epub 2016 Aug 1.
The isolation of a growing number of two-dimensional (2D) materials has inspired worldwide efforts to integrate distinct 2D materials into van der Waals (vdW) heterostructures. Given that any passivated, dangling-bond-free surface will interact with another through vdW forces, the vdW heterostructure concept can be extended to include the integration of 2D materials with non-2D materials that adhere primarily through non-covalent interactions. We present a succinct and critical survey of emerging mixed-dimensional (2D + nD, where n is 0, 1 or 3) heterostructure devices. By comparing and contrasting with all-2D vdW heterostructures as well as with competing conventional technologies, we highlight the challenges and opportunities for mixed-dimensional vdW heterostructures.
越来越多的二维（2D）材料的分离激发了全球努力，将不同的 2D 材料集成到范德华（vdW）异质结构中。由于任何钝化的、无悬空键的表面都将通过 vdW 力与另一个表面相互作用，因此 vdW 异质结构的概念可以扩展到包括与主要通过非共价相互作用附着的非 2D 材料的集成。我们对新兴的混合维度（2D + nD，其中 n 为 0、1 或 3）异质结构器件进行了简洁而关键的综述。通过与全二维 vdW 异质结构以及竞争的传统技术进行比较和对比，我们强调了混合维度 vdW 异质结构的挑战和机遇。
