Abstract
Tandem-junction microwire array photoelectrodes have been fabricated by coating np+-Si radial homojunction microwire arrays sequentially with fluorine-doped tin oxide (FTO) and titanium dioxide (TiO2). These photoelectrodes effected unassisted water splitting under simulated 1 Sun conditions with an open-circuit potential (EOC) of -1.5 V vs the formal potential for oxygen evolution, E0/(OH-/O2), a current density at E = E 0'(OH-/O2) of 0.78 mA cm-2, a fill factor (ff) = 0.51, and a photovoltaic-biased photoelectrochemical ideal regenerative cell efficiency of 0.6%.
| Original language | English |
|---|---|
| Pages (from-to) | H261-H264 |
| Journal | Journal of the Electrochemical Society |
| Volume | 163 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2016 |
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ASJC Scopus subject areas
- Electrochemistry
- Electronic, Optical and Magnetic Materials
- Materials Chemistry
- Surfaces, Coatings and Films
- Renewable Energy, Sustainability and the Environment
- Condensed Matter Physics
Cite this
Si/TiO2 tandem-junction microwire arrays for unassisted solar-driven water splitting. / Shaner, Matthew R.; McDowell, Matthew T.; Pien, Alex; Atwater, Harry A.; Lewis, Nathan S.
In: Journal of the Electrochemical Society, Vol. 163, No. 5, 2016, p. H261-H264.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Si/TiO2 tandem-junction microwire arrays for unassisted solar-driven water splitting
AU - Shaner, Matthew R.
AU - McDowell, Matthew T.
AU - Pien, Alex
AU - Atwater, Harry A.
AU - Lewis, Nathan S
PY - 2016
Y1 - 2016
N2 - Tandem-junction microwire array photoelectrodes have been fabricated by coating np+-Si radial homojunction microwire arrays sequentially with fluorine-doped tin oxide (FTO) and titanium dioxide (TiO2). These photoelectrodes effected unassisted water splitting under simulated 1 Sun conditions with an open-circuit potential (EOC) of -1.5 V vs the formal potential for oxygen evolution, E0/(OH-/O2), a current density at E = E 0'(OH-/O2) of 0.78 mA cm-2, a fill factor (ff) = 0.51, and a photovoltaic-biased photoelectrochemical ideal regenerative cell efficiency of 0.6%.
AB - Tandem-junction microwire array photoelectrodes have been fabricated by coating np+-Si radial homojunction microwire arrays sequentially with fluorine-doped tin oxide (FTO) and titanium dioxide (TiO2). These photoelectrodes effected unassisted water splitting under simulated 1 Sun conditions with an open-circuit potential (EOC) of -1.5 V vs the formal potential for oxygen evolution, E0/(OH-/O2), a current density at E = E 0'(OH-/O2) of 0.78 mA cm-2, a fill factor (ff) = 0.51, and a photovoltaic-biased photoelectrochemical ideal regenerative cell efficiency of 0.6%.
UR - http://www.scopus.com/inward/record.url?scp=84955475991&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84955475991&partnerID=8YFLogxK
U2 - 10.1149/2.0141605jes
DO - 10.1149/2.0141605jes
M3 - Article
VL - 163
SP - H261-H264
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
SN - 0013-4651
IS - 5
ER -