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

Nicole van Leeuwen; Burgert Blom; Mengying Xie; Vana Adamaki; Chris R. Bowen; Moises A.  de Araujo; Lucia H. Mascaro; Petra J. Cameron; Frank Marken

doi:10.1021/acsaem.7b00035

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

Nicole van Leeuwen
, Burgert Blom
, Mengying Xie
, Vana Adamaki
, Chris R. Bowen
, Moises A. de Araujo
, Lucia H. Mascaro
, Petra J. Cameron
, Frank Marken^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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 language	English
Pages (from-to)	38-42
Number of pages	5
Journal	ACS Applied Energy Materials
Volume	1
Issue number	1
DOIs	https://doi.org/10.1021/acsaem.7b00035
Publication status	Published - Jan 2018

Keywords

ALPHA-FE2O3 PHOTOANODES
CONVERSION
DYNAMICS
ELECTRICAL-PROPERTIES
FILMS
KINETICS
OXYGEN EVOLUTION
STORAGE
WATER
charge carrier
energy conversion
energy harvesting cycle
flicker light
photocapacitance
time constant

Access to Document

10.1021/acsaem.7b00035

Cite this

@article{56da52d0b3164b37a70f6afb49d91ab8,

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

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.",

keywords = "ALPHA-FE2O3 PHOTOANODES, CONVERSION, DYNAMICS, ELECTRICAL-PROPERTIES, FILMS, KINETICS, OXYGEN EVOLUTION, STORAGE, WATER, charge carrier, energy conversion, energy harvesting cycle, flicker light, photocapacitance, time constant",

author = "\{van Leeuwen\}, Nicole and Burgert Blom and Mengying Xie and Vana Adamaki and Bowen, \{Chris R.\} and \{de Araujo\}, \{Moises A.\} and Mascaro, \{Lucia H.\} and Cameron, \{Petra J.\} and Frank Marken",

year = "2018",

month = jan,

doi = "10.1021/acsaem.7b00035",

language = "English",

volume = "1",

pages = "38--42",

journal = "ACS Applied Energy Materials",

issn = "2574-0962",

publisher = "American Chemical Society",

number = "1",

}

TY - JOUR

T1 - Residual Energy Harvesting from Light Transients Using Hematite as an Intrinsic Photocapacitor in a Symmetrical Cell

AU - van Leeuwen, Nicole

AU - Blom, Burgert

AU - Xie, Mengying

AU - Adamaki, Vana

AU - Bowen, Chris R.

AU - de Araujo, Moises A.

AU - Mascaro, Lucia H.

AU - Cameron, Petra J.

AU - Marken, Frank

PY - 2018/1

Y1 - 2018/1

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.

KW - ALPHA-FE2O3 PHOTOANODES

KW - CONVERSION

KW - DYNAMICS

KW - ELECTRICAL-PROPERTIES

KW - FILMS

KW - KINETICS

KW - OXYGEN EVOLUTION

KW - STORAGE

KW - WATER

KW - charge carrier

KW - energy conversion

KW - energy harvesting cycle

KW - flicker light

KW - photocapacitance

KW - time constant

U2 - 10.1021/acsaem.7b00035

DO - 10.1021/acsaem.7b00035

M3 - Article

SN - 2574-0962

VL - 1

SP - 38

EP - 42

JO - ACS Applied Energy Materials

JF - ACS Applied Energy Materials

IS - 1

ER -

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

Abstract

Keywords

Access to Document

Fingerprint

Cite this