P-type transparent conducting oxide protection layers for sustainable photoelectrochemical water oxidation

Le Chen, Jinhui Yang, Lyman J. Lee, Shannon Klaus, Rachel Woods-Robinson, Yanwei Lum, Jason K. Cooper, Ian D. Sharp, Alexis T. Bell, Joel W. Ager

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

Abstract

In this paper, we propose that a p-type transparent conducting oxide (p-TCO) can function as a selective hole contact and corrosion protection layer on photoanodes used for light-driven water oxidation. To prove the concept, NiCo2O4 was used as the p-TCO for n-Si protection in alkaline condition, and we show that this material has the requisite electronic structure, stability, transparency, and hole conductivity to achieve sustained and efficient solar water oxidation. The photoelectrochemical performance demonstrates the attractive combination of transparency and low-resistance hole conductivity in the NiCo2O4. Long-term testing indicates multi-day stability with minimal decrease in performance or observable corrosion of the Si photoanode. This works suggests that p-TCOs are promising as corrosion protection layers for stable water oxidation photoanodes.

OriginalspracheEnglisch
TitelProcesses at the Semiconductor Solution Interface 6
Redakteure/-innenC. O'Dwyer, D. N. Buckley, A. Etcheberry, A. C. Hillier, R. P. Lynch, P. M. Vereecken, H. Wang, O. M. Leonte
Herausgeber (Verlag)Electrochemical Society Inc.
Seiten115-118
Seitenumfang4
Auflage6
ISBN (elektronisch)9781607685968
DOIs
PublikationsstatusVeröffentlicht - 2015
Extern publiziertJa
VeranstaltungSymposium on Processes at the Semiconductor Solution Interface 6 - 227th ECS Meeting - Chicago, USA/Vereinigte Staaten
Dauer: 24 Mai 201528 Mai 2015

Publikationsreihe

NameECS Transactions
Nummer6
Band66
ISSN (Print)1938-6737
ISSN (elektronisch)1938-5862

Konferenz

KonferenzSymposium on Processes at the Semiconductor Solution Interface 6 - 227th ECS Meeting
Land/GebietUSA/Vereinigte Staaten
OrtChicago
Zeitraum24/05/1528/05/15

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