祝贺博士生杨晓琴研究成果发表于国际著名学术期刊《Nano Research》。恭喜她一直以来所奋斗的道路得到了认可，前行仍需脚踏实地，祝她百尺竿头更进一步！

       《Nano Research》期刊影响因子为8.893，是工程技术1区期刊，是一份经过同行评审的、国际性的、跨学科的研究期刊，关注纳米科学和纳米技术的各个方面。从纳米材料科学的基本方面到纳米材料的实际应用，在各个主体领域都征集了投稿，关注但不限于以下领域：纳米材料的合成、表征和操作，纳米物理，电子传输，量子物理，扫描探针显微镜和光谱学，纳米流体力学，纳米传感器，纳米电子学和分子电子学，纳米光学，纳米光电子和纳米光子学，纳米磁学，纳米生物和纳米尺度的建模和仿真等。

论文链接：https://doi.org/10.1007/s12274-020-3108-y

In-situ observations of novel single-atom thick 2D tin membranes embedded in graphene

  
Xiaoqin Yang, Huy Q. Ta, Wei Li, Rafael G. Mendes, Yu Liu, Qitao Shi, Sami Ullah, Alicja Bachmatiuk, Jinping Luo, Lijun Liu, Jin-Ho Choi, and Mark H. Rummeli

ISSN 1998-0124 CN 11-5974/O4 2019, 12(1): 000–000

    1 School of Energy and Power Engineering, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, China

    2 Soochow Institute for Energy and Materials Innovations, College of Physics, Optoelectronics and Energy, Collaborative Innovation Center of Suzhou         Nano Science and Technology, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow          

    University, Suzhou 215006, China

    3 Leibniz Institute for Solid State and Materials Research Dresden, P.O. Box 270116, D-01171 Dresden, Germany

    4 Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, Zabrze 41-819, Poland 

    5 Polish Center for Technology Development (PORT), Ul. Stabłowicka 147, Wrocław 54-066, Poland

    6 Institute of Environmental Technology, VSB-Technical University of Ostrava, 17. Listopadu 15, Ostrava 708 33, Czech Republic § Xiaoqin Yang, Huy Q.     Ta, and Wei Li contributed equally to this work.

ABSTRACT There is ongoing research in freestanding single-atom thick elemental metal patches, including those suspended in a two-dimensional (2D) material, due to their utility in providing new structural and energetic insight into novel metallic 2D systems. Graphene pores have shown promise as support systems for suspending such patches. This study explores the potential of Sn atoms to form freestanding stanene and/or Sn patches in graphene pores. Sn atoms were deposited on graphene, where they formed novel single-atom thick 2D planar clusters/patches (or membranes) ranging from 1 to 8 atoms within the graphene pores. Patches of three or more atoms adopted either a star-like or close-packed structural configuration. Density functional theory  (DFT) calculations were conducted to look at the cluster configurations and energetics (without the graphene matrix) and were found to deviate from experimental observations for 2D patches larger than five atoms. This was attributed to interfacial interactions between the graphene pore edges and Sn atoms. The presented findings help advance the development of single-atom thick 2D elemental metal membranes.

KEYWORDS in-situ transmission electron microscopy, Sn atoms, planar cluster, graphene, vacancy