Cited by 177Advanced Photocatalysis TechniquesPerovskite Materials and ApplicationsTiO2 Photocatalysis and Solar Cells

Integrated halide perovskite photoelectrochemical cells with solar-driven water-splitting efficiency of 20.8%

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Fehr, Austin M. K., Agrawal, Ayush, Mandani, Faiz, Conrad, Christian L., Jiang, Qi, Park, So Yeon, Alley, Olivia, Li, Bor +12 more·2023·Nature Communications

Abstract

Achieving high solar-to-hydrogen (STH) efficiency concomitant with long-term durability using low-cost, scalable photo-absorbers is a long-standing challenge. Here we report the design and fabrication of a conductive adhesive-barrier (CAB) that translates >99% of photoelectric power to chemical reactions. The CAB enables halide perovskite-based photoelectrochemical cells with two different architectures that exhibit record STH efficiencies. The first, a co-planar photocathode-photoanode architecture, achieved an STH efficiency of 13.4% and 16.3 h to t 60, solely limited by the hygroscopic hole transport layer in the n-i-p device. The second was formed using a monolithic stacked silicon-perovskite tandem, with a peak STH efficiency of 20.8% and 102 h of continuous operation before t 60 under AM 1.5G illumination. These advances will lead to efficient, durable, and low-cost solar-driven water-splitting technology with multifunctional barriers.

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Crossref · 10.1038/s41467-023-39290-y

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  • The high efficiency of a perovskite solar cell (PSC) is associated with a high absorption coefficient, direct bandgap transition, low effective mass, long diffusion length, and relatively high carrier mobility of free electrons and holes.

    “The high efficiency of a perovskite solar cell (PSC) is associated with a high absorption coefficient, direct bandgap transition, low effective mass, long diffusion length, and relatively high carrier mobility of free electrons and holes.[162,163]”

    From Advances in Blue Energy Fuels: Harvesting Energy from Ocean for Self‐Powered Electrolysis (2025) · cites this paper as [163]

    The Introduction links high perovskite solar-cell efficiency to large absorption coefficients and long diffusion lengths, and mentions tunable bandgaps and charge-carrier lifetimes. It does not establish a direct bandgap transition, low effective mass, or relatively high mobility of free electrons and holes as contributors to that efficiency. Page numbers are not available in our copy. (LLM, conf=0.88)

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Research works printed but not linked: 1

  1. [40]US Department of Energy. Advanced Water Splitting Materials Workshop Report. 56 (2016).

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Authors
Fehr, A. M. K., Agrawal, A., Mandani, F., Conrad, C. L., Jiang, Q., Park, S. Y., Alley, O., Li, B., Sidhik, S., Metcalf, I., Botello, C., Young, J. L., Even, J., Blancon, J. C., Deutsch, T. G., Zhu, K., Albrecht, S., Toma, F. M., Wong, M., & Mohite, A. D.
Affiliations
  • Rice University (US)
  • National Laboratory of the Rockies (US)
  • Lawrence Berkeley National Laboratory (US)
  • Helmholtz-Zentrum Berlin für Materialien und Energie (DE)
  • Centre National de la Recherche Scientifique (FR)
Corresponding author
  • Wong, Michael
  • Mohite, Aditya D.
Venue
Nature Communications
Published
2023-06-26
Volume
14
Issue
1
Pages
3797-3797
ISSN
2041-1723 (ISSN-L)
OpenAlex
W4382020723
Cited by
177
References
47
Citations by year
2026: 54 · 2025: 59 · 2024: 54 · 2023: 10
FWCI
8.46
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, cc-by)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • HZB Repository (Helmholtz-Zentrum Berlin für Materialien und Energie GmbH (HZB)) (submittedVersion, other-oa)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
Funders
DOE | Office of Energy Efficiency and Renewable Energy (DE-EE0008843)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Advanced Photocatalysis Techniques
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Perovskite Materials and Applications
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › TiO2 Photocatalysis and Solar Cells
Keywords
solar water splitting, solar-to-hydrogen efficiency, device durability

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