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2-Electrode Short Circuit and j–V

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Photoelectrochemical Water Splitting

Abstract

Solar-to-hydrogen (STH) conversion efficiency is the most important figure of merit to gage the potential of a semiconductor material to photoelectrochemically split water (see Chapter “Efficiency Definitions in the Field of PEC”). It is projected that STH conversion efficiencies in excess of 10 % will be needed for practical hydrogen production systems [1]. Taken in conjunction with gas detection measurements (see Chapter “Stability Testing”), the photocurrent density (j SC) under short-circuited conditions (i.e., zero applied bias) in a 2-electrode measurement is critical in determining the STH conversion efficiency. Moreover, applied bias experiments using the 2-electrode configuration can shed important light on the water splitting capabilities and limits of a PEC material system.

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References

  1. Multi-Year Research, Development, and Demonstration Plan, Hydrogen Production, (2012), http://www1.eere.energy.gov/hydrogenandfuelcells/mypp/pdfs/production.pdf

  2. I.S. Cho, Z. Chen, A.J. Forman, D.R. Kim, P.M. Rao, T.F. Jaramillo, X. Zheng, Branched TiO2 nanorods for photoelectrochemical hydrogen production. Nano Lett. 11, 4978–4984 (2011)

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Correspondence to Eric Miller .

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Chen, Z. et al. (2013). 2-Electrode Short Circuit and j–V. In: Photoelectrochemical Water Splitting. SpringerBriefs in Energy. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8298-7_8

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  • DOI: https://doi.org/10.1007/978-1-4614-8298-7_8

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  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-1-4614-8297-0

  • Online ISBN: 978-1-4614-8298-7

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