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Cited by 454

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Monolithic Photoelectrochemical Device for Direct Water Splitting with 19% Efficiency

Open access
Cheng, Wen-Hui, Richter, Matthias H., May, Matthias M., Ohlmann, Jens, Lackner, David, Dimroth, Frank, Hannappel, Thomas, Atwater, Harry A., Lewerenz, Hans-Joachim·2018·ACS Energy Letters

Abstract

Efficient unassisted solar water splitting, a pathway to storable renewable energy in the form of chemical bonds, requires optimization of a photoelectrochemical device based on photovoltaic tandem heterojunctions. We report a monolithic photocathode device architecture that exhibits significantly reduced surface reflectivity, minimizing parasitic light absorption and reflection losses. A tailored multifunctional crystalline titania interphase layer acts as a corrosion protection layer, with favorable band alignment between the semiconductor conduction band and the energy level for water reduction, facilitating electron transport at the cathode–electrolyte interface. It also provides a favorable substrate for adhesion of high-activity Rh catalyst nanoparticles. Under simulated AM 1.5G irradiation, solar-to-hydrogen efficiencies of 19.3 and 18.5% are obtained in acidic and neutral electrolytes, respectively. The system reaches a value of 0.85 of the theoretical limit for photoelectrochemical water splitting for the energy gap combination employed in the tandem-junction photoelectrode structure.

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Crossref · 10.1021/acsenergylett.8b00920

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Metadata

Authors
Cheng, W.-H., Richter, M. H., May, M. M., Ohlmann, J., Lackner, D., Dimroth, F., Hannappel, T., Atwater, H. A., & Lewerenz, H.-J.
Venue
ACS Energy Letters
Published
2018-06-25
Volume
3
Issue
8
Pages
1795-1800
ISSN
2380-8195 (ISSN-L)
OpenAlex
W2623208246
Cited by
454
References
1
FWCI
10.58
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Monolithic Photoelectrochemical Device for Direct Water Splitting with 19% Efficiency. https://app.cochat.ai/papers/10.1021/acsenergylett.8b00920
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Cheng, W.-H., Richter, M. H., May, M. M., Ohlmann, J., Lackner, D., Dimroth, F., Hannappel, T., Atwater, H. A., & Lewerenz, H.-J. (2018). Monolithic Photoelectrochemical Device for Direct Water Splitting with 19% Efficiency. ACS Energy Letters. https://doi.org/10.1021/acsenergylett.8b00920

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