中国物理B ›› 2025, Vol. 34 ›› Issue (10): 106104-106104.doi: 10.1088/1674-1056/ae04d7

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Preparation of atomically thin 2D metals

Jiaojiao Zhao(赵交交)1,2,3, Guangyu Zhang(张广宇)1,2,3,†, and Luojun Du(杜罗军)1,2,‡   

  1. 1 Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Songshan Lake Materials Laboratory, Dongguan 523808, China
  • 收稿日期:2025-06-30 修回日期:2025-08-27 接受日期:2025-09-09 发布日期:2025-10-20
  • 通讯作者: Guangyu Zhang, Guangyu Zhang E-mail:gyzhang@iphy.ac.cn;luojun.du@iphy.ac.cn
  • 基金资助:
    This work is supported by the Strategic Priority Research Program of Chinese Academy of Sciences (CAS) (Grant No. XDB0470101), the National Natural Science Foundation of China (Grant Nos. 12422402, 62488201, 12274447, 62204166, and 52325201), and the National Key Research and Development Program of China (Grant Nos. 2021YFA1202900 and 2023YFA1407000).

Preparation of atomically thin 2D metals

Jiaojiao Zhao(赵交交)1,2,3, Guangyu Zhang(张广宇)1,2,3,†, and Luojun Du(杜罗军)1,2,‡   

  1. 1 Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Songshan Lake Materials Laboratory, Dongguan 523808, China
  • Received:2025-06-30 Revised:2025-08-27 Accepted:2025-09-09 Published:2025-10-20
  • Contact: Guangyu Zhang, Guangyu Zhang E-mail:gyzhang@iphy.ac.cn;luojun.du@iphy.ac.cn
  • Supported by:
    This work is supported by the Strategic Priority Research Program of Chinese Academy of Sciences (CAS) (Grant No. XDB0470101), the National Natural Science Foundation of China (Grant Nos. 12422402, 62488201, 12274447, 62204166, and 52325201), and the National Key Research and Development Program of China (Grant Nos. 2021YFA1202900 and 2023YFA1407000).

摘要: Two-dimensional (2D) metals, which are appealing for a plethora of emergent phenomena and technological applications, stand as one of the highly sought-after goals in condensed-matter physics and materials science. In stark contrast to the widely-studied 2D van der Waals (vdW) layered materials in which their weak interlayer interactions facilitate the isolation from their bulk, 2D metals are extremely challenging to achieve because of their thermodynamic instability and non-layered nature. In this review, we highlight the recent advances in the reliable production of atomically thin 2D metals, including but not limited to vdW squeezing technique, top-down exfoliation, mechanical pressing, chemical etching, epitaxial growth, and confinement growth. We also present our perspectives and discuss the future opportunities and research directions in this new field.

关键词: two-dimensional (2D) metals, vdW squeezing, top-down strategy, bottom-up synthesis

Abstract: Two-dimensional (2D) metals, which are appealing for a plethora of emergent phenomena and technological applications, stand as one of the highly sought-after goals in condensed-matter physics and materials science. In stark contrast to the widely-studied 2D van der Waals (vdW) layered materials in which their weak interlayer interactions facilitate the isolation from their bulk, 2D metals are extremely challenging to achieve because of their thermodynamic instability and non-layered nature. In this review, we highlight the recent advances in the reliable production of atomically thin 2D metals, including but not limited to vdW squeezing technique, top-down exfoliation, mechanical pressing, chemical etching, epitaxial growth, and confinement growth. We also present our perspectives and discuss the future opportunities and research directions in this new field.

Key words: two-dimensional (2D) metals, vdW squeezing, top-down strategy, bottom-up synthesis

中图分类号:  (Techniques for structure determination)

  • 61.05.-a
61.46.-w (Structure of nanoscale materials)