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Study of the electric field screening effect for field emitter arrays

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Abstract

Understanding the influence of the interaction of emitters on the field emission performance of a field emitter array is of great importance for the design of a multi-emitter device. In this work, a screening factor S is defined to quantify the effect of electric field screening due to the interaction of emitters in an array. A three-dimensional finite integration technique is used to study the electric field screening effect for Spindt-type field emitter arrays which have potential applications in flatscreen displays and high-power vacuum electronics. The dependences of the electric field screening on the tip-to-tip spacing, half-angle of the emitter, height of the emitter and radius of the tip’s curvature are analyzed. The effects of the variations in the size of the emitter’s geometry on the most efficient arrangement to achieve maximum emission efficiency in an array are discussed.

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Authors and Affiliations

  1. National Key Laboratory of Science and Technology on Vacuum Electronics, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu, 610054, China

    Nannan Li & Baoqing Zeng

  2. Institute of Electronic Engineering, Chinese Academy of Engineering Physics, Mianyang, 621900, China

    Nannan Li

  3. Institute of Electronic Engineering, Chinese Academy of Engineering Physics, Mianyang, 621900, China

    Fei Yan, Shucai Pang, Lei Chen, Dazhi Jin, Wei Xiang, De Zhang & Jingyi Dai

  4. State Key Laboratory of Electronic Thin Films and Integrated Devices Zhongshan Lab, Department of Electronic Engineering, University of Electronic Science and Technology of China Zhongshan Institute, Zhongshan, 528402, China

    Baoqing Zeng

Authors
  1. Nannan Li
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  2. Fei Yan
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  3. Shucai Pang
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  4. Lei Chen
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  5. Dazhi Jin
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  6. Wei Xiang
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  7. De Zhang
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  8. Jingyi Dai
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  9. Baoqing Zeng
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Correspondence to Baoqing Zeng.

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Li, N., Yan, F., Pang, S. et al. Study of the electric field screening effect for field emitter arrays. Journal of the Korean Physical Society 66, 1186–1191 (2015). https://doi.org/10.3938/jkps.66.1186

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  • DOI: https://doi.org/10.3938/jkps.66.1186

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