Imperial College London
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ProfessorDavidKlug

Faculty of Natural Sciences, Department of Chemistry

Associate Dean for Enterprise for FoNS & Professor
 
 
 
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Contact

 

+44 (0)20 7594 5806d.klug

 
 
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Location

 

Molecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Pesci:2013:10.1021/jp4099914,
author = {Pesci, FM and Wang, G and Klug, DR and Li, Y and Cowan, AJ},
doi = {10.1021/jp4099914},
journal = {The Journal of Physical Chemistry C: Energy Conversion and Storage, Optical and Electronic Devices, Interfaces, Nanomaterials, and Hard Matter},
pages = {25837--25844},
title = {Efficient suppression of electron hole recombination in oxygen-deficient hydrogen-treated TiO2 nanowires for photoelectrochemical water splitting},
url = {http://dx.doi.org/10.1021/jp4099914},
volume = {117},
year = {2013}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - There is an increasing level of interest in the use of black TiO2 prepared by thermal hydrogen treatments (H:TiO2) due to the potential to enhance both the photocatalytic and the light-harvesting properties of TiO2. Here, we examine oxygen-deficient H:TiO2 nanotube arrays that have previously achieved very high solar-to-hydrogen (STH) efficiencies due to incident photon-to-current efficiency (IPCE) values of >90% for photoelectrochemical water splitting at only 0.4 V vs RHE under UV illumination. Our transient absorption (TA) mechanistic study provides strong evidence that the improved electrical properties of oxygen-deficient TiO2 enables remarkably efficient spatial separation of electron–hole pairs on the submicrosecond time scale at moderate applied bias, and this coupled to effective suppression of microsecond to seconds charge carrier recombination is the primary factor behind the dramatically improved photoelectrochemical activity.
AU  - Pesci,FM
AU  - Wang,G
AU  - Klug,DR
AU  - Li,Y
AU  - Cowan,AJ
DO  - 10.1021/jp4099914
EP  - 25844
PY  - 2013///
SN  - 1932-7447
SP  - 25837
TI  - Efficient suppression of electron hole recombination in oxygen-deficient hydrogen-treated TiO2 nanowires for photoelectrochemical water splitting
T2  - The Journal of Physical Chemistry C: Energy Conversion and Storage, Optical and Electronic Devices, Interfaces, Nanomaterials, and Hard Matter
UR  - http://dx.doi.org/10.1021/jp4099914
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000328101200072&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://pubs.acs.org/doi/10.1021/jp4099914
UR  - http://hdl.handle.net/10044/1/80963
VL  - 117
ER  -
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