TY - JOUR
T1 - A quantum dot sensitized catalytic porous silicon photocathode
AU - Chandrasekaran, Soundarrajan
AU - Macdonald, Thomas J.
AU - Mange, Yatin J.
AU - Voelcker, Nicolas H.
AU - Nann, Thomas
PY - 2014/7/7
Y1 - 2014/7/7
N2 - Solar fuels have attracted considerable attention as an alternative energy vector in the context of the dwindling supplies of the planet's non-renewable resources. The first step in solar fuel generation is often a photo-catalytic water splitting. Although a very large amount of work has been dedicated to optimise the photo-oxidation process (mostly based on titania), the development of highly efficient photocathodes is limited. In this paper, we report the fabrication and characterisation of a nano-structured photocathode using indium phosphide QDs and a bio-inspired Fe2S2(CO)6 catalyst, p-type porous silicon photocathode. Our hybrid electrode system produced a photocurrent density of -1.2 mA cm-2 with hydrogen evolution at low bias potentials.
AB - Solar fuels have attracted considerable attention as an alternative energy vector in the context of the dwindling supplies of the planet's non-renewable resources. The first step in solar fuel generation is often a photo-catalytic water splitting. Although a very large amount of work has been dedicated to optimise the photo-oxidation process (mostly based on titania), the development of highly efficient photocathodes is limited. In this paper, we report the fabrication and characterisation of a nano-structured photocathode using indium phosphide QDs and a bio-inspired Fe2S2(CO)6 catalyst, p-type porous silicon photocathode. Our hybrid electrode system produced a photocurrent density of -1.2 mA cm-2 with hydrogen evolution at low bias potentials.
UR - http://www.scopus.com/inward/record.url?scp=84902665536&partnerID=8YFLogxK
U2 - 10.1039/c4ta01677g
DO - 10.1039/c4ta01677g
M3 - Article
AN - SCOPUS:84902665536
VL - 2
SP - 9478
EP - 9481
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
SN - 2050-7488
IS - 25
ER -