High-order superlattices by rolling up van der Waals heterostructures

Bei Zhao, Zhong Wan, Yuan Liu, Junqing Xu, Xiangdong Yang, Dingyi Shen, Zucheng Zhang, Chunhao Guo, Qi Qian, Jia Li, Ruixia Wu, Zhaoyang Lin, Xingxu Yan, Bailing Li, Zhengwei Zhang, Huifang Ma, Bo Li, Xiao Chen, Yi Qiao, Imran Shakir, Zeyad Almutairi, Fei Wei, Yue Zhang, Xiaoqing Pan, Yu Huang, Yuan Ping, Xidong Duan () and Xiangfeng Duan ()
Additional contact information
Bei Zhao: Hunan University
Zhong Wan: University of California Los Angeles
Yuan Liu: Hunan University
Junqing Xu: University of California Santa Cruz
Xiangdong Yang: Hunan University
Dingyi Shen: Hunan University
Zucheng Zhang: Hunan University
Chunhao Guo: University of California Santa Cruz
Qi Qian: University of California Los Angeles
Jia Li: Hunan University
Ruixia Wu: Hunan University
Zhaoyang Lin: University of California Los Angeles
Xingxu Yan: University of California Irvine
Bailing Li: Hunan University
Zhengwei Zhang: Hunan University
Huifang Ma: Hunan University
Bo Li: Hunan University
Xiao Chen: Tsinghua University
Yi Qiao: University of Science and Technology Beijing
Imran Shakir: King Saud University
Zeyad Almutairi: King Saud University
Fei Wei: Tsinghua University
Yue Zhang: University of Science and Technology Beijing
Xiaoqing Pan: University of California Irvine
Yu Huang: University of California Los Angeles
Yuan Ping: University of California Santa Cruz
Xidong Duan: Hunan University
Xiangfeng Duan: University of California Los Angeles

Nature, 2021, vol. 591, issue 7850, 385-390

Abstract: Abstract Two-dimensional (2D) materials1,2 and the associated van der Waals (vdW) heterostructures3–7 have provided great flexibility for integrating distinct atomic layers beyond the traditional limits of lattice-matching requirements, through layer-by-layer mechanical restacking or sequential synthesis. However, the 2D vdW heterostructures explored so far have been usually limited to relatively simple heterostructures with a small number of blocks8–18. The preparation of high-order vdW superlattices with larger number of alternating units is exponentially more difficult, owing to the limited yield and material damage associated with each sequential restacking or synthesis step8–29. Here we report a straightforward approach to realizing high-order vdW superlattices by rolling up vdW heterostructures. We show that a capillary-force-driven rolling-up process can be used to delaminate synthetic SnS2/WSe2 vdW heterostructures from the growth substrate and produce SnS2/WSe2 roll-ups with alternating monolayers of WSe2 and SnS2, thus forming high-order SnS2/WSe2 vdW superlattices. The formation of these superlattices modulates the electronic band structure and the dimensionality, resulting in a transition of the transport characteristics from semiconducting to metallic, from 2D to one-dimensional (1D), with an angle-dependent linear magnetoresistance. This strategy can be extended to create diverse 2D/2D vdW superlattices, more complex 2D/2D/2D vdW superlattices, and beyond-2D materials, including three-dimensional (3D) thin-film materials and 1D nanowires, to generate mixed-dimensional vdW superlattices, such as 3D/2D, 3D/2D/2D, 1D/2D and 1D/3D/2D vdW superlattices. This study demonstrates a general approach to producing high-order vdW superlattices with widely variable material compositions, dimensions, chirality and topology, and defines a rich material platform for both fundamental studies and technological applications.

Date: 2021
References: Add references at CitEc
Citations: View citations in EconPapers (6)

Downloads: (external link)
https://www.nature.com/articles/s41586-021-03338-0 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:591:y:2021:i:7850:d:10.1038_s41586-021-03338-0

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/s41586-021-03338-0

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().