Imperial College London
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ProfessorEmilianoCortes

Faculty of Engineering, Department of Materials

Academic Visitor
 
 
 
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Contact

 

e.cortes

 
 
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Location

 

Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Huettenhofer:2021:10.1002/aenm.202102877,
author = {Huettenhofer, L and Golibrzuch, M and Bienek, O and Wendisch, FJ and Lin, R and Becherer, M and Sharp, ID and Maier, SA and Cortes, E},
doi = {10.1002/aenm.202102877},
journal = {Advanced Energy Materials},
title = {Metasurface photoelectrodes for enhanced solar fuel generation},
url = {http://dx.doi.org/10.1002/aenm.202102877},
volume = {11},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Tailoring optical properties in photocatalysts by nanostructuring them can help increase solar light harvesting efficiencies in a wide range of materials. Whereas plasmon resonances are widely employed in metallic catalysts for this purpose, latest advances of nonradiative, dielectric nanophotonics also enable light confinement and enhanced visible light absorption in semiconductors. Here, a design procedure for large-scale nanofabrication of semiconductor photoelectrodes using imprint lithography is developed. Anapole excitations and metasurface lattice resonances are combined to enhance the absorption of the model material, amorphous gallium phosphide (a-GaP), over the visible spectrum. It is shown that cost-effective, high sample throughput is achieved while retaining the precise signature of the engineered photonic states. Photoelectrochemical measurements under hydrogen evolution reaction conditions and sunlight illumination reveal the contributions of the respective resonances and demonstrate an overall photocurrent enhancement of 5.7, compared to a planar film. These results are supported by optical and numerical analysis of single nanodisks and of the upscaled metasurface.https://onlinelibrary.wiley.com/doi/10.1002/aenm.202102877
AU  - Huettenhofer,L
AU  - Golibrzuch,M
AU  - Bienek,O
AU  - Wendisch,FJ
AU  - Lin,R
AU  - Becherer,M
AU  - Sharp,ID
AU  - Maier,SA
AU  - Cortes,E
DO  - 10.1002/aenm.202102877
PY  - 2021///
SN  - 1614-6832
TI  - Metasurface photoelectrodes for enhanced solar fuel generation
T2  - Advanced Energy Materials
UR  - http://dx.doi.org/10.1002/aenm.202102877
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000711526500001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://onlinelibrary.wiley.com/doi/10.1002/aenm.202102877
UR  - http://hdl.handle.net/10044/1/93968
VL  - 11
ER  -
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