2D–1D mixed-dimensional heterostructures: progress, device applications and perspectives

Abstract

Two-dimensional (2D) materials have attracted broad interests and been extensively exploited for a variety of functional applications. Moreover, one-dimensional (1D) atomic crystals can also be integrated into 2D templates to create mixed-dimensional heterostructures, and the versatility of combinations provides 2D-1D heterostructures plenty of intriguing physical properties, making them promising candidate to construct novel electronic and optoelectronic nanodevices. In this review, we first briefly present an introduction of relevant fabrication methods and structural configurations for 2D-1D heterostructures integration. We then discuss the emerged intriguing physics, including high optical absorption, efficient carrier separation, fast charge transfer and plasmon-exciton interconversion. Their potential applications such as electronic/optoelectronic devices, photonic devices, spintronic devices and gas sensors, are also discussed. Finally, we provide a brief perspective for the future opportunities and challenges in this emerging field.

Molybdenum Disulfide/Double‐Wall Carbon Nanotube Mixed‐Dimensional Heterostructures

“…Further, 1D nanomaterials can be integrated with 2D components, serving as interconnectors or conducting channels for large‐scale integrated circuits. [ 37 ] In addition, our demonstrated simple and efficient fabrication method for mixed‐dimensional 1D/2D heterostructures can be applied to various optical structures (e.g., silicon waveguides, resonators) to improve the device performance.…”

High performance 1D–2D CuO/MoS2 photodetectors enhanced by femtosecond laser-induced contact engineering

“…In particular, 1D atomic crystals such as nanowires (NWs), nanotubes (NTs) and nanorods (NRs) are preferable candidates for integrating with 2D materials, which will exhibit various intriguing properties, such as high optical absorption, efficient carrier separation, ultrafast charge transfer, plasmon-exciton interconversion, etc. [16][17][18] For example, Jariwala et al realized electrical control of carbon nanotube/MoS 2 p-n heterojunction photodetectors that display a concurrent spectral response in the visible and near-infrared regions with an ultrafast photodetection speed. 19 Zhang et al reported a novel type-II staggered band alignment of CuFe 2 O 4 /MoS 2 mixed-dimensional heterostructures that present a distinct enhanced acetone gas sensing response.…”

Copper Oxide Solution Sensor Formed on a Thin Film Having Nanowires for Detecting Ethanol in Water

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