| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Secondary electron emission yield from vertical graphene nanosheets by helicon plasma deposition |
| Xue-Lian Jin(金雪莲)1,2, Pei-Yu Ji(季佩宇)1,2, Lan-Jian Zhuge(诸葛兰剑)3,†, Xue-Mei Wu(吴雪梅)1,2, and Cheng-Gang Jin(金成刚)4,‡ |
1 School of Physical Science and Technology, Soochow University, Suzhou 215006, China;
2 Provincial Key Laboratory of Thin Films, Soochow University, Suzhou 215006, China;
3 Soochow University Analysis and Testing Center, Suzhou 215006, China;
4 Laboratory for Space Environment and Physical Sciences, Harbin Institute of Technology, Harbin 150001, China |
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Abstract The secondary electron emission yields of materials depend on the geometries of their surface structures. In this paper, a method of depositing vertical graphene nanosheet (VGN) on the surface of the material is proposed, and the secondary electron emission (SEE) characteristics for the VGN structure are studied. The COMSOL simulation and the scanning electron microscope (SEM) image analysis are carried out to study the secondary electron yield (SEY). The effect of aspect ratio and packing density of VGN on SEY under normal incident condition are studied. The results show that the VGN structure has a good effect on suppressing SEE.
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Received: 29 April 2021
Revised: 20 June 2021
Accepted manuscript online: 07 July 2021
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PACS:
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79.20.Hx
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(Electron impact: secondary emission)
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81.05.U-
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(Carbon/carbon-based materials)
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78.20.Bh
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(Theory, models, and numerical simulation)
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68.37.Hk
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(Scanning electron microscopy (SEM) (including EBIC))
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11975163). The authors would like to thank Dr. Tan Haiyun for his suggestion for this work. |
Corresponding Authors:
Lan-Jian Zhuge, Cheng-Gang Jin
E-mail: ljzhuge@suda.edu.cn;cgjin@hit.edu.cn
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Cite this article:
Xue-Lian Jin(金雪莲), Pei-Yu Ji(季佩宇), Lan-Jian Zhuge(诸葛兰剑), Xue-Mei Wu(吴雪梅), and Cheng-Gang Jin(金成刚) Secondary electron emission yield from vertical graphene nanosheets by helicon plasma deposition 2022 Chin. Phys. B 31 027901
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