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Updated: Jan 21, 2026

Fabrication of Thin Film Silver/Silver Chloride Electrodes with Finely Controlled Single Layer Silver Chloride
Published on: July 1, 2020
Performance improvement of a p-Cu2O nanocrystal photocathode with an ultra-thin silver protective layer
1School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, P. R. China. yang_li@just.edu.cn.
Abstract:
A Ag film with 10 nm thickness is deposited on a directionally grown Cu2O single crystal photocathode by high power impulse magnetron sputtering (HiPIMS). The continuous Ag film not only forms a dense proton isolator, but also constructs a Schottky junction with Cu2O to accelerate the transportation of photo-induced electrons. After optimization, the photocathode exhibits much-improved activity and stability versus the unmodified one, and over 98% stability (state-of-the-art) remains after 5 h of light-chopping chronoamperometry. The sustained photocurrent density is 4.0 mA cm-2 at 0 VRHE.
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