Multijunction Si photocathodes with tunable photovoltages from 2.0 V to 2.8 V for light induced water splitting

Félix Urbain, Vladimir Smirnov, Jan‐Philipp Becker, Andreas Lambertz, Florent Yang, Jürgen Ziegler, Bernhard Kaiser, Wolfram Jaegermann, Uwe Rau, F. Finger

Energy & Environmental Science · 2015 · 251 citations · 44 references

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Abstract

Bias-free solar water splitting is demonstrated using thin film silicon based triple and quadruple junction solar cells with solar-to-hydrogen efficiencies up to 9.5%.

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