Summary overview of present state of basic electrostatic field electron emission theory

TL;DR

This paper provides a high-level overview of the current state of basic electrostatic field electron emission theory, highlighting existing confusion, outdated theories, and the need for clarification to improve future research accuracy.

Contribution

It offers a concise summary of modern FE theory, addressing prevalent misconceptions and emphasizing the importance of updated theoretical understanding for technological applications.

Findings

Many papers use outdated FE theory leading to inaccurate predictions.

Current-density predictions in older theories are significantly lower than modern estimates.

The note aims to reduce confusion and errors in future FE literature.

Abstract

This technical note provides a high-level overview of the present state of basic field electron emission (FE) theory, as suitable for use in the context of technological applications of FE theory. At present there is much theoretical confusion in FE literature, and a partial breakdown of the peer review system. Even in sensitive technological contexts, many papers have stated and used out-of-date theory that makes current-density predictions that are several hundred times less than those of modern FE theory. A primary aim of this note is to help reduce the confusion and error in future published FE literature. It is not intended as a detailed review of FE theory.