中国物理B ›› 2020, Vol. 29 ›› Issue (2): 26801-026801.doi: 10.1088/1674-1056/ab6583

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Triphenylene adsorption on Cu(111) and relevant graphene self-assembly

Qiao-Yue Chen(陈乔悦), Jun-Jie Song(宋俊杰), Liwei Jing(井立威), Kaikai Huang(黄凯凯), Pimo He(何丕模), Hanjie Zhang(张寒洁)   

  1. 1 Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou 310027, China;
    2 Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China;
    3 Department of Fundamental and Social Science, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, China
  • 收稿日期:2019-11-04 修回日期:2019-12-16 出版日期:2020-02-05 发布日期:2020-02-05
  • 通讯作者: Pimo He, Hanjie Zhang E-mail:zhj_fox@zju.edu.cn;phypmhe@zju.edu.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant No. 2017YFB0503100) and the National Natural Science Foundation of China (Grant No. 11790313).

Triphenylene adsorption on Cu(111) and relevant graphene self-assembly

Qiao-Yue Chen(陈乔悦)1, Jun-Jie Song(宋俊杰)3, Liwei Jing(井立威)1, Kaikai Huang(黄凯凯)1, Pimo He(何丕模)1,2, Hanjie Zhang(张寒洁)1   

  1. 1 Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou 310027, China;
    2 Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China;
    3 Department of Fundamental and Social Science, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, China
  • Received:2019-11-04 Revised:2019-12-16 Online:2020-02-05 Published:2020-02-05
  • Contact: Pimo He, Hanjie Zhang E-mail:zhj_fox@zju.edu.cn;phypmhe@zju.edu.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant No. 2017YFB0503100) and the National Natural Science Foundation of China (Grant No. 11790313).

摘要: Investigations on adsorption behavior of triphenylene (TP) and subsequent graphene self-assembly on Cu(111) were carried out mainly by using scanning tunneling microscopy (STM). At monolayer coverage, TP molecules formed a long-range ordered adsorption structure on Cu(111) with an uniform orientation. Graphene self-assembly on the Cu(111) substrate with TP molecules as precursor was achieved by annealing the sample, and a large-scale graphene overlayer was successfully captured after the sample annealing up to 1000 K. Three different Moiré patterns generated from relative rotational disorders between the graphene overlayer and the Cu(111) substrate were observed, one with 4° rotation between the graphene overlayer and the Cu(111) substrate with a periodicity of 2.93 nm, another with 7° rotation and 2.15 nm of the size of the Moiré supercell, and the third with 10° rotation with a periodicity of 1.35 nm.

关键词: triphenylene, graphene, Cu(111), scanning tunneling microscopy

Abstract: Investigations on adsorption behavior of triphenylene (TP) and subsequent graphene self-assembly on Cu(111) were carried out mainly by using scanning tunneling microscopy (STM). At monolayer coverage, TP molecules formed a long-range ordered adsorption structure on Cu(111) with an uniform orientation. Graphene self-assembly on the Cu(111) substrate with TP molecules as precursor was achieved by annealing the sample, and a large-scale graphene overlayer was successfully captured after the sample annealing up to 1000 K. Three different Moiré patterns generated from relative rotational disorders between the graphene overlayer and the Cu(111) substrate were observed, one with 4° rotation between the graphene overlayer and the Cu(111) substrate with a periodicity of 2.93 nm, another with 7° rotation and 2.15 nm of the size of the Moiré supercell, and the third with 10° rotation with a periodicity of 1.35 nm.

Key words: triphenylene, graphene, Cu(111), scanning tunneling microscopy

中图分类号:  (Adsorbate structure (binding sites, geometry))

  • 68.43.Fg
68.37.Ef (Scanning tunneling microscopy (including chemistry induced with STM)) 68.43.-h (Chemisorption/physisorption: adsorbates on surfaces)