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Graphene-Based Mixed-Dimensional van der Waals Heterostructures for Advanced Optoelectronics

机译：用于高级光电的基于石墨烯的混合尺寸范德华异质结构

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摘要

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.
机译：尽管过去几年中2D原子晶体库已大大扩展，但石墨烯的研究仍是学术界和商业界关注的重点之一。由于其独特的电子结构，石墨烯为探索新颖的2D物理学提供了一个强大的平台，并已极大地影响了包括能源，电子和光子学在内的广泛领域。此外，将石墨烯与其他功能成分结合使用的多功能性为设计人工范德华（vdWs）异质结构提供了强大的策略。除了堆叠的2D-2D vdWs异质结构外，广义上讲，石墨烯还可以通过vdWs相互作用与其他非2D材料杂交。这种混合尺寸的vdW（MDW）结构在材料选择方面具有相当大的自由度，并有助于利用不同尺寸的协同优势，这可以弥补石墨烯的固有缺点。简要概述了基于石墨烯的MDW异质结构的代表性进展，涵盖了从组装策略到光电子学中的应用。这些混合结构的科学价值和应用优势特别受到重视。此外，考虑到在工业规模上在新物理学和应用潜力方面的可能突破，着重指出了这一活跃研究领域中的挑战和未来前景。

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