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Field Emission Properties of Wrinkled Multi-layer Graphene Cathodes

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Proceedings of the 5th China and International Young Scientist Terahertz Conference, Volume 2 (YTHZ 2024)

Part of the book series: Springer Proceedings in Physics ((SPPHY,volume 401))

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Abstract

Ideal field emission (FE) materials require structures with outstanding conductivity, thermal conductivity, and a high field enhancement factor (β). To fulfill these criteria, the production of superior folded multilayer graphene (MLG) was initiated through bubble-assisted Chemical Vapor Deposition (B-CVD), followed by the fabrication of MLG cathodes using screen printing. FE characteristics of MLG cathodes with and without a silver paste layer were compared, investigating the impact of the silver paste layer introduction on cathode performance. The findings suggest that incorporating the silver layer additionally improves the overall FE properties. Subsequently, the optimal annealing temperature for the silver paste layer was identified. The optimal cathode demonstrates a current density of up to 10.5 mA/cm2, a turn-on field of 1.5 V/μm, and a threshold field of 2.65 V/μm, accompanied by outstanding reproducibility and stability.

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Author information

Authors and Affiliations

  1. Southwest Jiaotong University, Chengdu, 610031, China

    Wenmei Lv, Lian Wang, Yiwei Lu, Dong Wang, Hui Wang, Yuxin Hao, Yuanpeng Zhang, Zeqi Sun & Yongliang Tang

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  1. Wenmei Lv
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  2. Lian Wang
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  3. Yiwei Lu
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  4. Dong Wang
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  5. Hui Wang
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  6. Yuxin Hao
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  7. Yuanpeng Zhang
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  8. Zeqi Sun
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  9. Yongliang Tang
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Corresponding author

Correspondence to Yongliang Tang .

Editor information

Editors and Affiliations

  1. Peking University, Bei**g, China

    Chao Chang

  2. University of Electronic Science and Technology of China, Chengdu, China

    Yaxin Zhang

  3. Tsinghua University, Bei**g, China

    Ziran Zhao

  4. University of Shanghai for Science and Technology, Shanghai, China

    Yiming Zhu

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© 2024 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Lv, W. et al. (2024). Field Emission Properties of Wrinkled Multi-layer Graphene Cathodes. In: Chang, C., Zhang, Y., Zhao, Z., Zhu, Y. (eds) Proceedings of the 5th China and International Young Scientist Terahertz Conference, Volume 2. YTHZ 2024. Springer Proceedings in Physics, vol 401. Springer, Singapore. https://doi.org/10.1007/978-981-97-3913-4_54

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