Graphene/Carbon Dot Hybrid Thin Films Prepared by a Modified Langmuir-Schaefer MethodKouloumpis, A., Thomou, E., Chalmpes, N., Dimos, K., Spyrou, K., Bourlinos, A. B., Koutselas, I., Gournis, D. & Rudolf, P., May-2017, In : ACS Omega. 2, 5, p. 2090-2099 10 p.
Research output: Contribution to journal › Article › Academic › peer-review
The special electronic, optical, thermal, and mechanical properties of graphene resulting from its 2D nature, as well as the ease of functionalizing it through a simple acid treatment, make graphene an ideal building block for the development of new hybrid nanostructures with well-defined dimensions and behavior. Such hybrids have great potential as active materials in applications such as gas storage, gas/liquid separation, photocatalysis, bioimaging, optoelectronics, and nanosensing. In this study, luminescent carbon dots (C-dots) were sandwiched between oxidized graphene sheets to form novel hybrid multilayer films. Our thin-film preparation approach combines self-assembly with the Langmuir-Schaefer deposition and uses graphene oxide nanosheets as template for grafting C-dots in a bidimensional array. Repeating the cycle results in a facile and low-cost layer-by-layer procedure for the formation of highly ordered hybrid multilayers, which were characterized by photoluminescence, UV-visible, X-ray photoelectron, and Raman spectroscopies, as well as X-ray diffraction and atomic force microscopy.
|Number of pages||10|
|Publication status||Published - May-2017|
- LUMINESCENT CARBON NANODOTS, GRAPHITE OXIDE, PRUSSIAN BLUE, QUANTUM DOTS, NANOTUBES, NANOCRYSTALS, PERFORMANCE, ABSORPTION, CHEMISTRY