TY - JOUR
T1 - Stable solar-driven oxidation of water by semiconducting photoanodes protected by transparent catalytic nickel oxide films
AU - Sun, Ke
AU - Saadi, Fadl H.
AU - Lichterman, Michael F.
AU - Hale, William G.
AU - Wang, Hsin Ping
AU - Zhou, Xinghao
AU - Plymale, Noah T.
AU - Omelchenko, Stefan T.
AU - He, Jr Hau
AU - Papadantonakis, Kimberly M.
AU - Brunschwig, Bruce S.
AU - Lewis, Nathan S.
N1 - Publisher Copyright:
© 2015, National Academy of Sciences. All rights reserved.
Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2015/3/24
Y1 - 2015/3/24
N2 - Reactively sputtered nickel oxide (NiOx) films provide transparent, antireflective, electrically conductive, chemically stable coatings that also are highly active electrocatalysts for the oxidation of water to O2(g). These NiOx coatings provide protective layers on a variety of technologically important semiconducting photoanodes, including textured crystalline Si passivated by amorphous silicon, crystalline n-type cadmium telluride, and hydrogenated amorphous silicon. Under anodic operation in 1.0 M aqueous potassium hydroxide (pH 14) in the presence of simulated sunlight, the NiOx films stabilized all of these self-passivating, high-efficiency semiconducting photoelectrodes for >100 h of sustained, quantitative solar-driven oxidation of water to O2(g).
AB - Reactively sputtered nickel oxide (NiOx) films provide transparent, antireflective, electrically conductive, chemically stable coatings that also are highly active electrocatalysts for the oxidation of water to O2(g). These NiOx coatings provide protective layers on a variety of technologically important semiconducting photoanodes, including textured crystalline Si passivated by amorphous silicon, crystalline n-type cadmium telluride, and hydrogenated amorphous silicon. Under anodic operation in 1.0 M aqueous potassium hydroxide (pH 14) in the presence of simulated sunlight, the NiOx films stabilized all of these self-passivating, high-efficiency semiconducting photoelectrodes for >100 h of sustained, quantitative solar-driven oxidation of water to O2(g).
KW - Electrocatalysis
KW - Nickel oxide
KW - Photoanode stabilization
KW - Solar-driven water oxidation
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U2 - 10.1073/pnas.1423034112
DO - 10.1073/pnas.1423034112
M3 - Article
AN - SCOPUS:84925428446
VL - 112
SP - 3612
EP - 3617
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
SN - 0027-8424
IS - 12
ER -