Journal
JOURNAL OF MATERIALS RESEARCH
Volume 25, Issue 1, Pages 3-16Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1557/JMR.2010.0020
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Funding
- U.S. DOE [RF-05-SHGR-004, DE-FG36-03GO13062, NFH-8-88502-01, NFT-9-88567-01, DE-AC36-08GO28308, DEFG36-05GO15040, DE-FG02-07ER46375]
- National Science Foundation [0824484]
- Global Climate Energy Program at Stanford University
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Photoelectrochemical (PEC) water splitting for hydrogen production is a promising technology that uses sunlight and water to produce renewable hydrogen with oxygen as a by-product. In the expanding field of PEC hydrogen production, the use of standardized screening methods and reporting has emerged as a necessity. This article is intended to provide guidance on key practices in characterization of PEC materials and proper reporting of efficiencies. Presented here are the definitions of various efficiency values that pertain to PEC, with an emphasis on the importance of solar-to-hydrogen efficiency, as well as a flow chart with standard procedures for PEC characterization techniques for planar photoelectrode materials (i.e., not suspensions of particles) with a focus on single band gap absorbers. These guidelines serve as a foundation and prelude to a much more complete and in-depth discussion of PEC techniques and procedures presented elsewhere.
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