# The QE numerical simulation of PEA semiconductor photocathode

@article{Li2012TheQN,
title={The QE numerical simulation of PEA semiconductor photocathode},
author={Xu-dong Li and Qiang Gu and Mengchao Zhang and Minghua Zhao},
journal={Chinese Physics C},
year={2012},
volume={36},
pages={531-537}
}
• Published 31 August 2011
• Physics
• Chinese Physics C
Several kinds of models have already been proposed to explain the photoemission process. The exact photoemission theory of the semiconductor photocathode was not well established after decades of research. In this paper an integral equation of quantum efficiency (QE) is constructed to describe the photoemission of positive electron affinity (PEA) of the semiconductor photocathode based on the three-step photoemission model. Various factors (e.g., forbidden band gap, electron affinity, photon…

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