Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for advanced Energy Materials and Technologies, University of Science and Technology Beijing, Beijing, 100083, P. R. China.
State Key Laboratory for Advanced Metals and Materials School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China.
Adv Mater. 2019 Sep;31(37):e1806411. doi: 10.1002/adma.201806411. Epub 2019 Jul 10.
Although the library of 2D atomic crystals has greatly expanded over the past years, research into graphene is still one of the focuses for both academia and business communities. Due to its unique electronic structure, graphene offers a powerful platform for exploration of novel 2D physics, and has significantly impacted a wide range of fields including energy, electronics, and photonics. Moreover, the versatility of combining graphene with other functional components provides a powerful strategy to design artificial van der Waals (vdWs) heterostructures. Aside from the stacked 2D-2D vdWs heterostructure, in a broad sense graphene can hybridize with other non-2D materials through vdWs interactions. Such mixed-dimensional vdWs (MDWs) structures allow considerable freedom in material selection and help to harness the synergistic advantage of different dimensionalities, which may compensate for graphene's intrinsic shortcomings. A succinct overview of representative advances in graphene-based MDWs heterostructures is presented, ranging from assembly strategies to applications in optoelectronics. The scientific merit and application advantages of these hybrid structures are particularly emphasized. Moreover, considering possible breakthroughs in new physics and application potential on an industrial scale, the challenges and future prospects in this active research field are highlighted.
虽然二维原子晶体库在过去几年中得到了极大的扩展，但石墨烯的研究仍然是学术界和商业界的焦点之一。由于其独特的电子结构，石墨烯为探索新型二维物理提供了一个强大的平台，并对包括能源、电子和光子学在内的广泛领域产生了重大影响。此外，将石墨烯与其他功能组件相结合的多功能性提供了设计人工范德华（vdW）异质结构的强大策略。除了堆叠的二维-二维 vdW 异质结构外，广义上石墨烯可以通过 vdW 相互作用与其他非二维材料杂交。这种混合维度 vdW（MDW）结构在材料选择方面提供了相当大的自由度，并有助于利用不同维度的协同优势，这可能弥补石墨烯的内在缺陷。本文简要概述了基于石墨烯的 MDW 异质结构在组装策略及光电应用等方面的代表性进展。特别强调了这些混合结构的科学价值和应用优势。此外，考虑到新物理领域可能取得突破以及在工业规模上的应用潜力，本文还突出了该活跃研究领域面临的挑战和未来展望。
