%0 Journal Article
%A Urbain, F.
%A Smirnov, V.
%A Becker, Jan Philipp
%A Rau, U.
%A Ziegler, J.
%A Yang, F.
%A Kaiser, B.
%A Jaegermann, W.
%A Hoch, S.
%A Blug, M.
%A Finger, F.
%T Solar water splitting with earth-abundant materials using amorphous silicon photocathodes and Al/Ni contacts as hydrogen evolution catalyst
%J Chemical physics letters
%V 638
%@ 0009-2614
%C Amsterdam [u.a.]
%I Elsevier
%M FZJ-2015-05429
%P 25-30
%D 2015
%X An all earth-abundant and precious metal-free photocathode based on a low-temperature fabricated amorphous silicon tandem junction is demonstrated to be an efficient device for solar water splitting. With a particular designed Al/Ni layer stack as photocathode/electrolyte contact an onset potential for cathodic photocurrent of 1.7 V vs. RHE and a saturation photocurrent density of 7.2 mA/cm2 were achieved. For a high-cost alternative with a Ag/Pt layer stack an even higher photocathode performance is demonstrated. Above all we present an approach for a dedicated photovoltaic and electrochemical development for solar water splitting.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000363953200005
%R 10.1016/j.cplett.2015.08.018
%U https://juser.fz-juelich.de/record/203508