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Lateral two-dimensional (2D) heterostructures have great potential for device engineering at the atomistic scale. Their production is hindered by difficulties in obtaining atomically sharp interface free from intermixture. Here we report the continuous construction of a lateral heterostructure using blue phosphorene and tetrafluoro-tetracyanoquinodimethane (F4TCNQ) as the building blocks. The lateral heterostructure is achieved by linking the semiconducting F4TCNQ-Au metal organic framework and the metallic blue phosphorene-Au network via Au adatoms. The structural and electronic properties of the heterostructure have been investigated by means of scanning tunneling microscopy and spectroscopy (STM/S), complemented by density functional theory (DFT) calculations, demonstrating a structurally and electrically abrupt interface. Our approach offers the possibility of high flexibility and control that can be extended to other metal-organic species and 2D materials, establishing a foundation for the development of atomically thin in-plane superlattice and devices.

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Publication history

Received: 22 August 2020
Revised: 15 October 2020
Accepted: 15 October 2020
Published: 01 March 2021
Issue date: March 2021

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© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature

Acknowledgements

This work is financially supported by the Natural Science Foundation of Jiangsu Province (No. BK20181297), the National Natural Science Foundation of China (Nos. 21875108, 21403282, and 51602155), and the Fundamental Research Funds for Central Universities (Nos. 30919011257, 30917015106, and 30918011340). T. C. N. thanks Dr. Jialin Zhang for helpful discussions on the structure of BlueP-Au network.

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Reprints and Permission requests may be sought directly from editorial office.
Email: nanores@tup.tsinghua.edu.cn

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