Controlled deposition of fullerene derivatives within a graphene template by means of a modified Langmuir-Schaefer method
| Autor: | Dimitrios Gournis, Nikolaos Chalmpes, Panagiota Zygouri, Vassilis N. Stathopoulos, Petra Rudolf, Nikolaos Vourdas, Antonios Kouloumpis, Konstantinos Spyrou, Vasilios Kostas, Georgia Potsi |
|---|---|
| Přispěvatelé: | Surfaces and Thin Films |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Langmuir
Materials science Fullerene Thin films Hybrids 02 engineering and technology Substrate (electronics) 010402 general chemistry 01 natural sciences law.invention Biomaterials Contact angle CARBON symbols.namesake Langmuir-Blodgett Colloid and Surface Chemistry THIN-FILMS X-ray photoelectron spectroscopy law RAMAN-SPECTRA C60BR24 Thin film CONDUCTIVITY WETTABILITY Graphene SURFACES Self-assembly 021001 nanoscience & nanotechnology 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials GRAPHITE OXIDE Chemical engineering Fullerene derivatives symbols 0210 nano-technology Raman spectroscopy C-60 BROMINATION |
| Zdroj: | Journal of Colloid and Interface Science, 524, 388-398. ACADEMIC PRESS INC ELSEVIER SCIENCE |
| ISSN: | 0021-9797 |
| Popis: | The scientific and technological potential of graphene's includes the development of light, open 3D hybrid structures with high surface area, tunable pore size and aromatic functionalities. Towards this aim, we describe a scalable and low-cost bottom-up approach that combines self-assembly and Langmuir-Schaefer deposition for the production of fullerene-intercalated graphene oxide hybrids. This method uses graphene oxide (GO) nanosheets as template for the attachment of two types of fullerene derivatives (bromo-fullerenes, C60Br24 and fullerols, C-60(OH)(24)) in a bi-dimensional arrangement, allowing a layerby-layer growth with control at nanoscale. Our film preparation approach relies on a bottom-up process that includes the formation of a hybrid organo-graphene Langmuir film, which is transferred onto a substrate and then brought in contact with C-60(OH)(24) molecules in solution to induce self-assembly. In the case of grafting C60Br24 molecules into graphene a further modification of the GO platelets was performed by bringing the surface of the transferred GO Langmuir film in contact with a second amino surfactant solution. Repeating these deposition cycles, pillared structures were fabricated in thin films form. These fullerene-based hybrid thin films were characterized by Raman and X-ray photoelectron (XPS) spectroscopies, X-ray diffraction (XRD), Atomic Force Microscopy (AFM) and contact angle measurements. (C) 2018 Elsevier Inc. All rights reserved. |
| Databáze: | OpenAIRE |
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