Imperial College London
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ProfessorAlexeiKornyshev

Faculty of Natural Sciences, Department of Chemistry

Professor of Chemical Physics
 
 
 
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Contact

 

+44 (0)20 7594 5786a.kornyshev Website CV

 
 
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Assistant

 

Mr John Murrell +44 (0)20 7594 2845

 
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Location

 

110Molecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Ma:2019:10.1021/acsami.9b05530,
author = {Ma, Y and Sikdar, D and Fedosyuk, A and Velleman, L and Zhao, M and Tang, L and Kornyshev, AA and Edel, JB},
doi = {10.1021/acsami.9b05530},
journal = {ACS Applied Materials and Interfaces},
title = {An auxetic thermo-responsive nanoplasmonic optical switch.},
url = {http://dx.doi.org/10.1021/acsami.9b05530},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Development and use of metamaterials have been gaining prominence in large part due to the possibility of creating platforms with 'disruptive' and unique optical properties. However, to date the majority of such systems produced using micro or nanotechnology, are static and can only perform certain target functions. Next-generation multifunctional smart optical metamaterials are expected to have tuneable elements with the possibility of controlling the optical properties in real time via variation in parameters such as pressure, mechanical stress, voltage, or through non-linear optical effects. Here, we address this challenge by developing a thermally controlled optical switch, based on the self-assembly of poly(N-isopropylacrylamide)-functionalised gold nanoparticles on a planar macroscale gold substrate. We show that such meta-surfaces can be tuned to exhibit substantial changes in the optical properties both in terms of wavelength and intensity, through the temperature-controlled variation of the interparticle distance within the nanoparticle monolayer as well as its separation from the substrate. This change is based on temperature induced auxetic expansion and contraction of the functional ligands. Such a system has potential for numerous applications, ranging from thermal sensors to regulated light harnessing.
AU  - Ma,Y
AU  - Sikdar,D
AU  - Fedosyuk,A
AU  - Velleman,L
AU  - Zhao,M
AU  - Tang,L
AU  - Kornyshev,AA
AU  - Edel,JB
DO  - 10.1021/acsami.9b05530
PY  - 2019///
SN  - 1944-8244
TI  - An auxetic thermo-responsive nanoplasmonic optical switch.
T2  - ACS Applied Materials and Interfaces
UR  - http://dx.doi.org/10.1021/acsami.9b05530
UR  - https://www.ncbi.nlm.nih.gov/pubmed/31134791
UR  - http://hdl.handle.net/10044/1/70483
ER  -
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