Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 111, Issue 39, Pages 14057-14061Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1414290111
Keywords
solar cell; earth abundant; renewable; artificial leaf; multijunction
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Funding
- National Science Foundation Faculty Early Career Development Program [ECCS-1150878]
- Air Force Office of Scientific Research Grant [FA9550-13-1-0028]
- National Research Foundation Singapore through the Singapore Massachusetts Institute of Technology Alliance for Research and Technology's Low Energy Electronic Systems research program
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [1150878] Funding Source: National Science Foundation
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Direct solar-to-fuels conversion can be achieved by coupling a photovoltaic device with water-splitting catalysts. We demonstrate that a solar-to-fuels efficiency (SFE) > 10% can be achieved with nonprecious, low-cost, and commercially ready materials. We present a systems design of a modular photovoltaic (PV)-electrochemical device comprising a crystalline silicon PV minimodule and low-cost hydrogen-evolution reaction and oxygen-evolution reaction catalysts, without power electronics. This approach allows for facile optimization en route to addressing lower-cost devices relying on crystalline silicon at high SFEs for direct solar-to-fuels conversion.
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