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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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hematite
water splitting
cells
energy
chemistry
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glass

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Residual Energy Harvesting from Light Transients Using Hematite as an Intrinsic Photocapacitor in a Symmetrical Cell. / Leeuwen, Nicole S.; Marken, Frank; Blom, Burgert; Xie, Mengying; Bowen, Christopher; Araújo, Moisés A.; Mascaro, Lucia H.; Cameron, Petra; Adamaki, Vaia.

In: ACS Applied Energy Materials, Vol. 1, No. 1, 31.12.2017, p. 38.

Research output: Contribution to journalLetter

Leeuwen, Nicole S. ; Marken, Frank ; Blom, Burgert ; Xie, Mengying ; Bowen, Christopher ; Araújo, Moisés A. ; Mascaro, Lucia H. ; Cameron, Petra ; Adamaki, Vaia. / Residual Energy Harvesting from Light Transients Using Hematite as an Intrinsic Photocapacitor in a Symmetrical Cell. In: ACS Applied Energy Materials. 2017 ; Vol. 1, No. 1. pp. 38.
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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.",
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AU - Leeuwen, Nicole S.

AU - Marken, Frank

AU - Blom, Burgert

AU - Xie, Mengying

AU - Bowen, Christopher

AU - Araújo, Moisés A.

AU - Mascaro, Lucia H.

AU - Cameron, Petra

AU - Adamaki, Vaia

PY - 2017/12/31

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N2 - 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.

AB - 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.

U2 - 10.1021/acsaem.7b00035

DO - 10.1021/acsaem.7b00035

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JO - ACS Applied Energy Materials

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