Numerical study of the electrostatic field gradients present in various planar emitter field emission configurations relevant to experimental research

Technical Digest of the 17th International Vacuum Nanoelectronics Conference (IEEE Cat. No.04TH8737) Pub Date : 2004-07-11 DOI:10.1109/IVNC.2004.1354926

A. Berrios, J. D. de Jesus, G. Morell

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引用次数: 18

Abstract

In this work, a general finite element software has been used to analyze the electrostatic field in various experimental configurations employed for measuring the field emission properties of planar emitters. The configurations studied are: (1) the metallic sphere-anode, (2) the cylindrical probe with spherically rounded tip, (3) the cylindrical probe with flat tip, (4) the flat anode separated from the cathode by insulating round spacers touching both cathode and anode, (5) flat spacers touching both cathode and anode, and (6) flat spacers touching the anode but not touching the cathode. The validity of the ideal capacitor approximation was investigated for the cathode surface electric field for each configuration using typical dimensions for each of them, and obtained the magnitude of the electric field near critical areas that could lead to residual gas ionization, dielectric breakdown and emission of electrons from non-desired cathode areas.

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各种平面发射极场发射构型中静电场梯度的数值研究与实验研究相关

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本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Technical Digest of the 17th International Vacuum Nanoelectronics Conference (IEEE Cat. No.04TH8737)

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