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Issue 1, 2015
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A taxonomy for solar fuels generators

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Abstract

A number of approaches to solar fuels generation are being developed, each of which has associated advantages and challenges. Many of these solar fuels generators are identified as “photoelectrochemical cells” even though these systems collectively operate based on a suite of fundamentally different physical principles. To facilitate appropriate comparisons between solar fuels generators, as well as to enable concise and consistent identification of the state-of-the-art for designs based on comparable operating principles, we have developed a taxonomy and nomenclature for solar fuels generators based on the source of the asymmetry that separates photogenerated electrons and holes. Three basic device types have been identified: photovoltaic cells, photoelectrochemical cells, and particulate/molecular photocatalysts. We outline the advantages and technological challenges associated with each type, and provide illustrative examples for each approach as well as for hybrid approaches.

Graphical abstract: A taxonomy for solar fuels generators

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Publication details

The article was received on 18 Jul 2014, accepted on 19 Sep 2014 and first published on 19 Sep 2014


Article type: Opinion
DOI: 10.1039/C4EE02251C
Author version available: Download Author version (PDF)
Citation: Energy Environ. Sci., 2015,8, 16-25
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    A taxonomy for solar fuels generators

    A. C. Nielander, M. R. Shaner, K. M. Papadantonakis, S. A. Francis and N. S. Lewis, Energy Environ. Sci., 2015, 8, 16
    DOI: 10.1039/C4EE02251C

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