Confining the growth of mesoporous silica films into nanospaces: towards surface nanopatterning
Confining the growth of mesoporous silica films into nanospaces: towards surface nanopatterning
The combination of lithographic methods and sol gel bottom-up techniques is a promising approach for nanopatterning substrates. The integration and scalable fabrication of such substrates are of great interest for the development of nanowire-based materials opening potentialities in new technologies. We demonstrate the deposition of ordered mesoporous silica into nanopatterned silica substrates by dip coating. Using scanning electron microscopy and grazing incidence small angle X-ray scattering, the effect of the sol composition on the pore ordering was probed. Optimising the sol composition using anodic alumina membranes as confined spaces, we showed how the pH controlled the transformation from circular to columnar mesophase. Vertical mesopores were obtained with very good repeatability. The effect of the sol chemistry on the surfactant curvature was then shown to be similar in nanopatterned substrates made by e-beam lithography.
1105-1111
Soulé, Samantha
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Moehl, Gilles E.
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Huang, Ruomeng
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Noori, Yasir J.
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Kiang, Kian Shen
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Kees de Groot, C. H.
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Beanland, Richard
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Smith, David C.
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Hector, Andrew L.
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21 February 2022
Soulé, Samantha
f5b1ff97-bf20-4adb-ba1d-357254158d8f
Moehl, Gilles E.
c3f40572-28c6-4467-a118-502000132f8c
Huang, Ruomeng
c6187811-ef2f-4437-8333-595c0d6ac978
Noori, Yasir J.
704d0b70-1ea6-4e00-92ce-cc2543087a09
Kiang, Kian Shen
fdb609c6-75aa-4893-85c8-8e50edfda7fe
Kees de Groot, C. H.
92cd2e02-fcc4-43da-8816-c86f966be90c
Beanland, Richard
2ccecc30-c09f-4331-9cad-2d3e64e3fe1d
Smith, David C.
d9b2c02d-b7ea-498b-9ea1-208a1681536f
Hector, Andrew L.
f19a8f31-b37f-4474-b32a-b7cf05b9f0e5
Soulé, Samantha, Moehl, Gilles E., Huang, Ruomeng, Noori, Yasir J., Kiang, Kian Shen, Kees de Groot, C. H., Beanland, Richard, Smith, David C. and Hector, Andrew L.
(2022)
Confining the growth of mesoporous silica films into nanospaces: towards surface nanopatterning.
Nanoscale Advances, 4 (4), .
(doi:10.1039/d1na00654a).
Abstract
The combination of lithographic methods and sol gel bottom-up techniques is a promising approach for nanopatterning substrates. The integration and scalable fabrication of such substrates are of great interest for the development of nanowire-based materials opening potentialities in new technologies. We demonstrate the deposition of ordered mesoporous silica into nanopatterned silica substrates by dip coating. Using scanning electron microscopy and grazing incidence small angle X-ray scattering, the effect of the sol composition on the pore ordering was probed. Optimising the sol composition using anodic alumina membranes as confined spaces, we showed how the pH controlled the transformation from circular to columnar mesophase. Vertical mesopores were obtained with very good repeatability. The effect of the sol chemistry on the surfactant curvature was then shown to be similar in nanopatterned substrates made by e-beam lithography.
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d1na00654a
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Accepted/In Press date: 10 January 2022
e-pub ahead of print date: 11 January 2022
Published date: 21 February 2022
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Funding Information:
The research work reported in this article was nancially supported by the ADEPT EPSRC programme grant (EP/N035437/1) and the EPSRC funding for the Smartlab (EP/K00509X/1 and EP/K009877/1).
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Local EPrints ID: 455355
URI: http://eprints.soton.ac.uk/id/eprint/455355
ISSN: 2516-0230
PURE UUID: 281a8154-4b37-47b0-aab8-e3583c9ef408
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Date deposited: 17 Mar 2022 17:41
Last modified: 06 Jun 2024 02:03
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