Preparation of Highly Stable Organic Steps with a Fullerene-Based Molecule

Preparation of Highly Stable Organic Steps with a Fullerene-Based Molecule

We report the formation of highly stable Langmuir−Blodgett (LB) organic steps made with a hexa-adduct fullerene-based amphiphile. This amphiphile forms films of excellent quality, with a very low roughness, that are structurally stable: X-ray reflectivity spectra recorded on fresh and 12-month-old s...

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Veröffentlicht in:Langmuir 2005-08, Vol.21 (16), p.7540-7544
Hauptverfasser: Burghardt, Stephan, Hirsch, Andreas, Medard, Nicolas, Kachfhe, Refahi Abou, Ausseré, Dominique, Valignat, Marie-Pierre, Gallani, Jean-Louis
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Chemistry
Exact sciences and technology
General and physical chemistry
Langmuir blodgett films
Surface physical chemistry
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container_end_page 7544
container_issue 16
container_start_page 7540
container_title Langmuir
container_volume 21
creator Burghardt, Stephan
Hirsch, Andreas
Medard, Nicolas
Kachfhe, Refahi Abou
Ausseré, Dominique
Valignat, Marie-Pierre
Gallani, Jean-Louis
description We report the formation of highly stable Langmuir−Blodgett (LB) organic steps made with a hexa-adduct fullerene-based amphiphile. This amphiphile forms films of excellent quality, with a very low roughness, that are structurally stable: X-ray reflectivity spectra recorded on fresh and 12-month-old samples are undiscernible. Such a behavior contrasts with that of more traditional amphiphiles, which are unfortunately well-known for their instability in time. The stability of the films stems, among others, from the spheroidal shape of the constitutive molecules. These experiments show that it is possible to circumvent the major drawback of LB films and to prepare materials more suited for applications. We show that the LB film prepared with this fullerene derivative can successfully be used as thickness gauges for atomic force microscopy or light microscopy studies.
doi_str_mv 10.1021/la051297n
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subjects Chemistry
Exact sciences and technology
General and physical chemistry
Langmuir blodgett films
Surface physical chemistry
title Preparation of Highly Stable Organic Steps with a Fullerene-Based Molecule
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