Cargando…

Two step formation of metal aggregates by surface X-ray radiolysis under Langmuir monolayers: 2D followed by 3D growth

In order to form a nanostructured metallic layer below a Langmuir monolayer, radiolysis synthesis was carried out in an adapted geometry that we call surface X-ray radiolysis. In this procedure, an X-ray beam produced by a synchrotron beamline intercepts the surface of an aqueous metal-ion solution...

Descripción completa

Detalles Bibliográficos
Autores principales: Mukherjee, Smita, Fauré, Marie-Claude, Goldmann, Michel, Fontaine, Philippe
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4685858/
https://www.ncbi.nlm.nih.gov/pubmed/26734531
http://dx.doi.org/10.3762/bjnano.6.247
_version_ 1782406362164101120
author Mukherjee, Smita
Fauré, Marie-Claude
Goldmann, Michel
Fontaine, Philippe
author_facet Mukherjee, Smita
Fauré, Marie-Claude
Goldmann, Michel
Fontaine, Philippe
author_sort Mukherjee, Smita
collection PubMed
description In order to form a nanostructured metallic layer below a Langmuir monolayer, radiolysis synthesis was carried out in an adapted geometry that we call surface X-ray radiolysis. In this procedure, an X-ray beam produced by a synchrotron beamline intercepts the surface of an aqueous metal-ion solution covered by a Langmuir monolayer at an angle of incidence below the critical angle for total internal reflection. Underneath the organic layer, the X-ray beam induces the radiolytic synthesis of a nanostructured metal–organic layer whose ultrathin thickness is defined by the vertical X-ray penetration depth. We have shown that increasing the X-ray flux on the surface, which considerably enhances the kinetics of the silver layer formation, results in a second growth regime of silver nanocrystals. Here the formation of the oriented thin layer is followed by the appearance of a 3D powder of silver clusters.
format Online
Article
Text
id pubmed-4685858
institution National Center for Biotechnology Information
language English
publishDate 2015
publisher Beilstein-Institut
record_format MEDLINE/PubMed
spelling pubmed-46858582016-01-05 Two step formation of metal aggregates by surface X-ray radiolysis under Langmuir monolayers: 2D followed by 3D growth Mukherjee, Smita Fauré, Marie-Claude Goldmann, Michel Fontaine, Philippe Beilstein J Nanotechnol Full Research Paper In order to form a nanostructured metallic layer below a Langmuir monolayer, radiolysis synthesis was carried out in an adapted geometry that we call surface X-ray radiolysis. In this procedure, an X-ray beam produced by a synchrotron beamline intercepts the surface of an aqueous metal-ion solution covered by a Langmuir monolayer at an angle of incidence below the critical angle for total internal reflection. Underneath the organic layer, the X-ray beam induces the radiolytic synthesis of a nanostructured metal–organic layer whose ultrathin thickness is defined by the vertical X-ray penetration depth. We have shown that increasing the X-ray flux on the surface, which considerably enhances the kinetics of the silver layer formation, results in a second growth regime of silver nanocrystals. Here the formation of the oriented thin layer is followed by the appearance of a 3D powder of silver clusters. Beilstein-Institut 2015-12-15 /pmc/articles/PMC4685858/ /pubmed/26734531 http://dx.doi.org/10.3762/bjnano.6.247 Text en Copyright © 2015, Mukherjee et al. https://creativecommons.org/licenses/by/2.0https://www.beilstein-journals.org/bjnano/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms)
spellingShingle Full Research Paper
Mukherjee, Smita
Fauré, Marie-Claude
Goldmann, Michel
Fontaine, Philippe
Two step formation of metal aggregates by surface X-ray radiolysis under Langmuir monolayers: 2D followed by 3D growth
title Two step formation of metal aggregates by surface X-ray radiolysis under Langmuir monolayers: 2D followed by 3D growth
title_full Two step formation of metal aggregates by surface X-ray radiolysis under Langmuir monolayers: 2D followed by 3D growth
title_fullStr Two step formation of metal aggregates by surface X-ray radiolysis under Langmuir monolayers: 2D followed by 3D growth
title_full_unstemmed Two step formation of metal aggregates by surface X-ray radiolysis under Langmuir monolayers: 2D followed by 3D growth
title_short Two step formation of metal aggregates by surface X-ray radiolysis under Langmuir monolayers: 2D followed by 3D growth
title_sort two step formation of metal aggregates by surface x-ray radiolysis under langmuir monolayers: 2d followed by 3d growth
topic Full Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4685858/
https://www.ncbi.nlm.nih.gov/pubmed/26734531
http://dx.doi.org/10.3762/bjnano.6.247
work_keys_str_mv AT mukherjeesmita twostepformationofmetalaggregatesbysurfacexrayradiolysisunderlangmuirmonolayers2dfollowedby3dgrowth
AT fauremarieclaude twostepformationofmetalaggregatesbysurfacexrayradiolysisunderlangmuirmonolayers2dfollowedby3dgrowth
AT goldmannmichel twostepformationofmetalaggregatesbysurfacexrayradiolysisunderlangmuirmonolayers2dfollowedby3dgrowth
AT fontainephilippe twostepformationofmetalaggregatesbysurfacexrayradiolysisunderlangmuirmonolayers2dfollowedby3dgrowth