Wireless Solar Water Splitting Using Silicon-Based Semiconductors and Earth-Abundant Catalysts

  title={Wireless Solar Water Splitting Using Silicon-Based Semiconductors and Earth-Abundant Catalysts},
  author={Steven Y. Reece and Jonathan A. Hamel and Kimberly Sung and Thomas D. Jarvi and Arthur J. Esswein and Joep J. H. Pijpers and Daniel G. Nocera},
  pages={645 - 648}
An artificial water-splitting system was built using abundant materials and sunlight. We describe the development of solar water-splitting cells comprising earth-abundant elements that operate in near-neutral pH conditions, both with and without connecting wires. The cells consist of a triple junction, amorphous silicon photovoltaic interfaced to hydrogen- and oxygen-evolving catalysts made from an alloy of earth-abundant metals and a cobalt|borate catalyst, respectively. The devices described… 

Solar-Driven Water Splitting at 13.8% Solar-to-Hydrogen Efficiency by an Earth-Abundant Electrolyzer

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Photoelectrochemical water splitting is demonstrated in an organic artificial leaf composed of a triple junction polymer solar cell for light absorption and charge generation and low-overpotential

Modulated III–V Triple-Junction Solar Cell Wireless Device for Efficient Water Splitting

We report an efficient wireless device for water splitting using III–V triple-junction solar cells. To maximize the generation efficiency of hydrogen, the surface catalytic electrode has to be well

An Optically Transparent Iron Nickel Oxide Catalyst for Solar Water Splitting.

A novel method for the deposition of an optically transparent amorphous iron nickel oxide oxygen evolution electrocatalyst that enables the preparation of a stable hematite/perovskite solar cell tandem device, which performs unassisted water splitting.

Efficient solar water oxidation using photovoltaic devices functionalized with earth-abundant oxygen evolving catalysts.

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Atomic layer-deposited tunnel oxide stabilizes silicon photoanodes for water oxidation.

A leading approach for large-scale electrochemical energy production with minimal global-warming gas emission is to use a renewable source of electricity, such as solar energy, to oxidize water,

In Situ Formation of an Oxygen-Evolving Catalyst in Neutral Water Containing Phosphate and Co2+

A catalyst that forms upon the oxidative polarization of an inert indium tin oxide electrode in phosphate-buffered water containing cobalt (II) ions is reported that not only forms in situ from earth-abundant materials but also operates in neutral water under ambient conditions.

High-efficiency photoelectrochemical hydrogen production using multijunction amorphous silicon photoelectrodes

Photoelectrochemical solar-to-hydrogen conversion efficiencies as high as 7.8% (based on the lower heating value of hydrogen) have been demonstrated in outdoor testing using a photocathode fabricated

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Contemporary models are shown to significantly underestimate the attainable efficiency of solar energy conversion to water splitting, and experimentally a cell containing illuminated AlGaAs/Si

Biological solar energy

  • J. Barber
  • Chemistry
    Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2007
This work has given strong hints of how nature uses solar energy to generate hydrogen and oxygen from water, providing a blue print for scientists to seriously consider constructing catalysts that mimic the natural system and thus stimulate new technologies to address the energy/CO2 problem that humankind must solve.

One step method to produce hydrogen by a triple stack amorphous silicon solar cell

A new direct one step method to split the water into hydrogen and oxygen by using a triple stack amorphous silicon solar cell with an n‐i‐p‐n‐i‐p‐n‐i‐p structure is reported. The ruthenium oxide

Cobalt-oxo core of a water-oxidizing catalyst film.

The similarities in function and oxidative self-assembly of CoCF and the catalytic Mn complex in photosynthesis are striking and a close analogy is established with respect to the metal-oxo core of the catalyst.

Highly active cobalt phosphate and borate based oxygen evolving catalysts operating in neutral and natural waters

A high surface area electrode is functionalized with cobalt-based oxygen evolving catalysts (Co-OEC = electrodeposited from pH 7 phosphate, Pi, pH 8.5 methylphosphonate, MePi, and pH 9.2 borate

A monolithic photovoltaic-photoelectrochemical device for hydrogen production via water splitting

Direct water electrolysis was achieved with a novel, integrated, monolithic photoelectrochemical-photovoltaic design that splits water directly upon illumination; light is the only energy input.