TY  - JOUR
AU  - Urbain, F.
AU  - Smirnov, V.
AU  - Becker, Jan Philipp
AU  - Rau, U.
AU  - Ziegler, J.
AU  - Yang, F.
AU  - Kaiser, B.
AU  - Jaegermann, W.
AU  - Hoch, S.
AU  - Blug, M.
AU  - Finger, F.
TI  - Solar water splitting with earth-abundant materials using amorphous silicon photocathodes and Al/Ni contacts as hydrogen evolution catalyst
JO  - Chemical physics letters
VL  - 638
SN  - 0009-2614
CY  - Amsterdam [u.a.]
PB  - Elsevier
M1  - FZJ-2015-05429
SP  - 25-30
PY  - 2015
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000363953200005
DO  - DOI:10.1016/j.cplett.2015.08.018
UR  - https://juser.fz-juelich.de/record/203508
ER  -