Journal
CERAMICS INTERNATIONAL
Volume 46, Issue 12, Pages 20012-20019Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2020.05.072
Keywords
FTO glass; alpha-Fe2O3; Surface modification; Photoelectrochemistry
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Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [NRF-2018R1A6A1A03024962, NRF-2019R1l1A3A01041454]
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Despite a number of favorable properties, several drawbacks need to be addressed before hematite can be considered a highly desirable material for applications in water-splitting photoelectrochemical (PEC) electrodes. In the present work, the PEC performance was improved by the synergetic effects of the preparation techniques and modification of the fluorine-doped tin oxide (FTO) glass. The hematite photoanodes deposited onto the pretreated FTO supports clearly decreased the overpotential by up to 100 mV with a higher photocurrent compared to the bare FTO glass. In particular, an electrochemical preparation method including moderate annealing resulted in a highly enhanced PEC performance by influencing the FTO glass during the electrode preparation process.
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