Abstract:To obtain high-efficiency AlGaN monolayer photocathode, the quantum efficiency formulas of reflection-mode and transmission-mode Al x Ga 1 − x N monolayer photocathode with varying Al contents and ultra-thin emission layer are derived in this article. Based on the formulas, we have simulated quantum efficiency of Al x Ga 1 − x N monolayer photocathode under different conditions. The results reveal that built-in electric field caused by varying Al contents can significantly promote quantum efficiency of photoca… Show more
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