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Nano Research 2021, 14(6): 1650-1658 https://doi.org/10.1007/s12274-020-3034-z
Review Article | Issue | Published: 05 September 2020

Atomic-scale insights into the formation of 2D crystals from in situ transmission electron microscopy

Show Author's Information Yatong Zhu1,  Dundong Yuan1,  Hao Zhang1,  Tao Xu1( ),  Litao Sun1,2( )
SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, China
Center for Advanced Materials and Manufacture, Southeast University-Monash University Joint Research Institute, Suzhou 215123, China
Keywords:
formation mechanism, two-dimensional crystal, in situ transmission electron microscopy, electron irradiation
Topics:
Electron transitions High resolution transmission electron microscopy
Cite this article:
Zhu Y, Yuan D, Zhang H, et al. Atomic-scale insights into the formation of 2D crystals from in situ transmission electron microscopy. Nano Research, 2021, 14(6): 1650-1658. https://doi.org/10.1007/s12274-020-3034-z
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Abstract Full text About this article

Two-dimensional (2D) crystals are attractive due to their intriguing structures and properties which are strongly dependent on the synthesis conditions. To achieve their superior properties, it is of critical importance to fully understand the growth processes and mechanisms for tailored design and controlled growth of 2D crystals. Due to the high spatiotemporal resolution and the capability to mimic the realistic growth conditions, in situ transmission electron microscopy (TEM) becomes an effective way to monitor the growth process in real-time at the atomic scale, which is expected to provide atomic-scale insights into the nucleation and growth of 2D crystals. Here we review the recent in situ TEM works on the formation of 2D crystals under electron irradiation, thermal excitation as well as voltage bias. The underlying mechanisms are also elucidated in detail, providing key insights into the nucleation and formation of 2D crystals.


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About this article

Atomic-scale insights into the formation of 2D crystals from in situ transmission electron microscopy

Show Author's information Yatong Zhu1, Dundong Yuan1, Hao Zhang1, Tao Xu1( ), Litao Sun1,2( )
SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, China
Center for Advanced Materials and Manufacture, Southeast University-Monash University Joint Research Institute, Suzhou 215123, China

Abstract

Two-dimensional (2D) crystals are attractive due to their intriguing structures and properties which are strongly dependent on the synthesis conditions. To achieve their superior properties, it is of critical importance to fully understand the growth processes and mechanisms for tailored design and controlled growth of 2D crystals. Due to the high spatiotemporal resolution and the capability to mimic the realistic growth conditions, in situ transmission electron microscopy (TEM) becomes an effective way to monitor the growth process in real-time at the atomic scale, which is expected to provide atomic-scale insights into the nucleation and growth of 2D crystals. Here we review the recent in situ TEM works on the formation of 2D crystals under electron irradiation, thermal excitation as well as voltage bias. The underlying mechanisms are also elucidated in detail, providing key insights into the nucleation and formation of 2D crystals.

Keywords: formation mechanism, two-dimensional crystal, in situ transmission electron microscopy, electron irradiation

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Publication history
Copyright
Acknowledgements

Publication history

Received: 29 May 2020
Revised: 30 July 2020
Accepted: 04 August 2020
Published: 05 September 2020
Issue date: June 2021

Copyright

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

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Nos. 11525415, 61974021, 61601116, and 51420105003) and the Natural Science Foundation of Jiangsu Province (No. BK20181284).

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