Journal
JOURNAL OF MATERIALS RESEARCH
Volume 31, Issue 11, Pages 1565-1573Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1557/jmr.2015.300
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Funding
- European Research Council under the European Union's Seventh Framework Program (FP)/ERC Grant [617516]
- Israeli Ministry of Science, Technology and Space [3-9699]
- Adelis Foundation
- Solar Fuels I-CORE program of the Planning and Budgeting Committee
- Israel Science Foundation [152/11]
- Photovoltaic Laboratory - Nancy & Stephen Grand Technion Energy Program (GTEP)
- Russell Berrie Nanotechnology Institute (RBNI)
- Micro and Nano Fabrication Unit (MNFU)
- European Research Council (ERC) [617516] Funding Source: European Research Council (ERC)
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Hematite (-Fe2O3) photoanodes are widely studied as candidates for water splitting photoelectrochemical (PEC) cells. To speed up the development of high efficiency hematite photoanodes, systematic investigations of the effect of material properties such as dopants and microstructure on PEC properties that determine the photoanode performance are crucial. Toward this end, this work presents a route for reproducible fabrication of thin film hematite photoanodes with reproducible microstructure and PEC properties. Hematite thin (50 nm) films are deposited by pulsed laser deposition from a Ti-doped (1 cation%) Fe2O3 target onto cleaned transparent conducting substrates (fluorinated tin oxide, FTO, coated glass substrates). Special attention is paid to rigorous cleaning of the substrates prior to the hematite deposition, which is found to be crucial for achieving highly reproducible results. Specimens prepared by this route display homogenous conformal coating with very little spread in PEC properties between different specimens, meeting the necessary prerequisite for systematic investigation of hematite photoanodes.
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