Abstract
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).
| Original language | English |
|---|---|
| Pages (from-to) | 3612-3617 |
| Number of pages | 6 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Volume | 112 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - Mar 24 2015 |
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Keywords
- Electrocatalysis
- Nickel oxide
- Photoanode stabilization
- Solar-driven water oxidation
ASJC Scopus subject areas
- General
Cite this
Stable solar-driven oxidation of water by semiconducting photoanodes protected by transparent catalytic nickel oxide films. / Sun, Ke; Saadi, Fadl H.; Lichterman, Michael F.; Hale, William G.; Wang, Hsin Ping; Zhou, Xinghao; Plymale, Noah T.; Omelchenko, Stefan T.; He, Jr Hau; Papadantonakis, Kimberly M.; Brunschwig, Bruce S.; Lewis, Nathan S.
In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 112, No. 12, 24.03.2015, p. 3612-3617.Research output: Contribution to journal › Article
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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
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
UR - http://www.scopus.com/inward/record.url?scp=84925428446&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84925428446&partnerID=8YFLogxK
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 -