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Nano Research

, Volume 11, Issue 3, pp 1714–1721 | Cite as

Direct imaging and determination of the crystal structure of six-layered graphdiyne

  • Chao Li
  • Xiuli Lu
  • Yingying Han
  • Shangfeng Tang
  • Yi Ding
  • Ruirui Liu
  • Haihong Bao
  • Yuliang Li
  • Jun LuoEmail author
  • Tongbu LuEmail author
Research Article

Abstract

Since its discovery, the direct imaging and determination of the crystal structure of few-layer graphdiyne has proven difficult because it is too delicate under irradiation by an electron beam. In this work, the crystal structure of a six-layered graphdiyne nanosheet was directly observed by low-voltage transmission electron microscopy (TEM) using low current density. The combined use of high-resolution TEM (HRTEM) simulation, electron energy-loss spectroscopy, and electron diffraction revealed that the as-synthesized nanosheet was crystalline graphdiyne with a thickness of 2.19 nm (corresponding to a thickness of six layers) and showed ABC stacking. Thus, this work provides direct evidence for the existence and crystal structure of few-layer graphdiyne, which is a new type of two-dimensional carbon material complementary to graphene.

Keywords

few-layer graphdiyne crystal structure low-voltage transmission electron microscopy 

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Notes

Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (Nos. 11604241, 21790052 and 21331007), the National Program for Thousand Young Talents of China, the Postdoctoral Science Foundation of China (No. 2015M580209), the Tianjin Municipal Education Commission, the Tianjin Municipal Science and Technology Commission (No. 15JCYBJC52600), and the Fundamental Research Fund of Tianjin University of Technology.

Supplementary material

12274_2017_1789_MOESM1_ESM.pdf (1.6 mb)
Direct imaging and determination of the crystal structure of six-layered graphdiyne

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Copyright information

© Tsinghua University Press and Springer-Verlag GmbH Germany 2018

Authors and Affiliations

  • Chao Li
    • 1
  • Xiuli Lu
    • 1
  • Yingying Han
    • 1
  • Shangfeng Tang
    • 1
  • Yi Ding
    • 1
  • Ruirui Liu
    • 1
  • Haihong Bao
    • 1
  • Yuliang Li
    • 2
  • Jun Luo
    • 1
    Email author
  • Tongbu Lu
    • 1
    Email author
  1. 1.Center for Electron Microscopy, TUT-FEI Joint Laboratory, Tianjin Key Laboratory of Advanced Porous Functional Materials, Institute for New Energy Materials & Low-Carbon Technologies, School of Materials Science and EngineeringTianjin University of TechnologyTianjinChina
  2. 2.Key Laboratory of Organic Solids, Institute of ChemistryChinese Academy of SciencesBeijingChina

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