Residual Energy Harvesting from Light Transients Using Hematite as an Intrinsic Photocapacitor in a Symmetrical Cell

Nicole S. Leeuwen, Frank Marken, Burgert Blom, Mengying Xie, Christopher Bowen, Moisés A. Araújo, Lucia H. Mascaro, Petra Cameron, Vaia Adamaki

Research output: Contribution to journalLetter

2 Citations (Scopus)
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Abstract

Hematite as a sustainable photoabsorber material offers a band gap close to 2 eV and photoanode characteristics, but usually requires additional catalysts to enhance surface redox chemistry during steady state light energy harvesting for water splitting. Here, for a highly doped hematite film, sufficient intrinsic photocapacitor behavior is reported for the conversion of light transients into energy. Residual energy is harvested in a symmetric architecture with two opposing mesoporous hematite films on conductive glass. Transient light energy harvesting is shown to occur without the need for water splitting.
Original languageEnglish
Pages (from-to)38
Number of pages42
JournalACS Applied Energy Materials
Volume1
Issue number1
DOIs
Publication statusPublished - 31 Dec 2017

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