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2-Electrode Short Circuit and j–V

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Photoelectrochemical Water Splitting


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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  1. Multi-Year Research, Development, and Demonstration Plan, Hydrogen Production, (2012),

  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.

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  • Print ISBN: 978-1-4614-8297-0

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