Work function: Fundamentals, measurement, calculation, engineering, and applications

L Lin, R Jacobs, T Ma, D Chen, J Booske, D Morgan - Physical Review Applied, 2023 - APS
The work function, which is the energy barrier for an electron esca** from the surface of a
material, is a fundamental material surface property with many applications spanning energy …

A tutorial on calculating space-charge-limited current density for general geometries and multiple dimensions

AL Garner, AM Darr, NRS Harsha - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Space-charge-limited current (SCLC) remains a critical issue across material phases
(vacuum, gas, liquids, and solids) and timescales. The solution for one-dimensional (1D) …

Demonstration of Low Work Function Perovskite SrVO3 Using Thermionic Electron Emission

L Lin, R Jacobs, D Chen, V Vlahos… - Advanced Functional …, 2022 - Wiley Online Library
Engineering a material's work function is of central importance for many technologies and in
particular electron emitters used in high‐power vacuum electronics and thermionic energy …

On the Child–Langmuir law in one, two, and three dimensions

YY Lau, D Li, DP Chernin - Physics of Plasmas, 2023 - pubs.aip.org
We consider the limiting current from an emitting patch whose size is much smaller than the
anode–cathode spacing. The limiting current is formulated in terms of an integral equation. It …

A multi-dimensional Child–Langmuir law for any diode geometry

NR Sree Harsha, M Pearlman, J Browning… - Physics of …, 2021 - pubs.aip.org
While prior theoretical studies of multi-dimensional space-charge limited current (SCLC)
assumed emission from a small patch on infinite electrodes, none have considered emission …

Physics-based model for nonuniform thermionic electron emission from polycrystalline cathodes

D Chen, R Jacobs, J Petillo, V Vlahos, KL Jensen… - Physical Review …, 2022 - APS
A physics-based model that predicts the emitted current from thermionic cathodes is
developed, which accurately spans from the temperature-limited (TL) to full-space-charge …

[HTML][HTML] Incorporating photoemission into the theoretical unification of electron emission and space-charge limited current

SA Lang, AM Darr, AL Garner - … of Vacuum Science & Technology B, 2021 - pubs.aip.org
Photon emitters are becoming increasingly important due to their ability to generate high
brightness, low emittance, and spatiotemporally coherent electron bunches for multiple …

A detour transition between thermal field emission and space charge limited regimes

C Lin, J Chen, Y Fu - Applied Physics Letters, 2024 - pubs.aip.org
Child–Langmuir law theoretically predicts the transition from thermionic electron emission to
space charge limited (SCL) current density across a diode gap. In this work, we reveal a …

Does Ethical Behaviour Affect Sustainable Development? Evidence from Developed and Develo** Countries

H Wang, H Chen, V Tawiah - Sustainability, 2023 - mdpi.com
This paper examines the relationship between ethical behavior and green growth for a large
sample of 109 countries, comprised of developed and develo** countries. We applied …

Model of finite velocity injection into coaxial cylindrical diode based on Ramo-Shockley theory

YB Zhu - IEEE Transactions on Electron Devices, 2023 - ieeexplore.ieee.org
The space charge effect in various kinds of electron diodes has been extensively studied.
Typically, the coaxial cylindrical geometric model is used for practical applications, such as …