Enhancement in the performance of ultrathin hematite photoanode for water splitting by an oxide underlayer.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 22508522.
- Also identified by DOI 10.1002/adma.201104868.
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Abstract
A 2-nm thick Nb(2)O(5) underlayer deposited by atomic layer deposition increases the charge separation efficiency and the photovoltage of ultrathin hematite films by suppressing electron back injection. Absorbed photon-to-current efficiencies (APCE) as high as 40%, which are one of the highest ever reported with hematite photoanodes, are obtained at 400 nm at +1.43 V vs. RHE.
Medical subject headings
- Ferric Compounds
- Water