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Ordered Mesoporous LiFe 5 O 8 Thin‐Film Photoanodes for Water Splitting
Author(s) -
Waitz Stefanie,
Suchomski Christian,
Brezesinski Torsten,
Marschall Roland
Publication year - 2018
Publication title -
chemphotochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.13
H-Index - 18
ISSN - 2367-0932
DOI - 10.1002/cptc.201800154
Subject(s) - water splitting , mesoporous material , materials science , thin film , semiconductor , band gap , optoelectronics , absorption (acoustics) , nanotechnology , photocatalysis , chemistry , catalysis , composite material , biochemistry
The optical and photoelectrochemical properties of ordered mesoporous α‐LiFe 5 O 8 thin films have been investigated. These sol−gel thin films exhibit a complex band structure, indicating a band gap of 2.45 eV, with additional absorption in the visible region up to λ =600 nm. Mott−Schottky plots reveal their applicability as photoanodes for water splitting (as they are n‐type semiconductors) and photoelectrochemical tests show good performance for water oxidation.