2017
DOI: 10.1021/acsomega.7b00012
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Abstract: The effects of exchange current density, Tafel slope, system resistance, electrode area, light intensity, and solar cell efficiency were systematically decoupled at the converter-assisted photovoltaic–water electrolysis system. This allows key determinants of overall efficiency to be identified. On the basis of this model, 26.5% single-junction GaAs solar cell was combined with a membrane-electrode-assembled electrolysis cell (EC) using the dc/dc converting technology. As a result, we have achieved a solar-to-… Show more

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Cited by 55 publications
(43 citation statements)
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“…This result is highly promising because it well meets the minimum requirements for economic feasibility of the technology, although we need further work to complete the wireless monolithic device. Additionally, our PV‐electrolysis device's STH efficiency of 10.6% is comparable to the values recently reported in the literature, which range from 2.5% to 20.6% . This wide range of STH efficiency is due to its strong dependence on the PV cell's efficiency.…”
supporting
confidence: 84%
“…This result is highly promising because it well meets the minimum requirements for economic feasibility of the technology, although we need further work to complete the wireless monolithic device. Additionally, our PV‐electrolysis device's STH efficiency of 10.6% is comparable to the values recently reported in the literature, which range from 2.5% to 20.6% . This wide range of STH efficiency is due to its strong dependence on the PV cell's efficiency.…”
supporting
confidence: 84%
“…Finally, a completely decoupled system could be designed (E), where the working conditions of the PV device do not depend on the EC component due to the DC/DC converter installed in between them. Since all these technologies are relatively mature, a 20.6% STH efficiency was achieved, and a potential of 26.5% was simulated as a theoretical limit . However, it must be noticed that these approaches (E) have an increasing complexity, and thus achieving a similar efficiency with simpler, more compact devices (B, C) can be more cost‐effective.…”
Section: Discussionmentioning
confidence: 99%
“…Since all these technologies are relatively mature, a 20.6% STH efficiency was achieved, and a potential of 26.5% was simulated as a theoretical limit. 46 However, it must be noticed that these approaches (E) have an increasing complexity, and thus achieving a similar efficiency with simpler, more compact devices (B, C) can be more costeffective.…”
Section: Discussionmentioning
confidence: 99%
“…The state-of-the-art photocatalytic and photoelectrochemical system has an efficiency of 10 and 5%, respectively, in the direct conversion of solar to hydrogen (STH) [91]. To reduce the price of hydrogen and boost up the efficiency of STH, an electrolyzer cell (EC) can be coupled with a photovoltaic cell (PV), called photovol-taicÀwater electrolysis system (PV-EC) [92]. The STH efficiency can be increased up to 30%.…”
Section: Pem Water Electrolysis For Energy Storage 41 Integration Wmentioning
confidence: 99%
“…(b)p H2 and p kin after the DC-DC converter assistance on (a). Reproduced with permission [92]. Copyright (2015) American Chemical Society.…”
Section: Pem Water Electrolysis For Energy Storage 41 Integration Wmentioning
confidence: 99%