A taxonomy for solar fuels generators. Issue 1 (30th September 2014)

• Record Type: Journal Article
• Authors: Nielander, Adam C.; Shaner, Matthew R.; Papadantonakis, Kimberly M.; Francis, Sonja A.; Lewis, Nathan S.
• Is Part Of: Energy & environmental science. Volume 8:Issue 1(2015)
• Page Start: 16
• Page End: 25
• Publication Date: 2014-09-30
• Subjects: Energy conversion -- Periodicals; Fuel switching -- Periodicals; Environmental sciences -- Periodicals; Environmental chemistry -- Periodicals; 333.79
• DOI: 10.1039/c4ee02251c
• Languages: English
• ISSNs: 1754-5692

Abstract

Abstract : The three basic types of solar fuels generators: photoelectrochemical cells, photovoltaic cells, and photoelectrosynthetic particulate/molecular photocatalysts. 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.