Real-time multiscale monitoring and tailoring of graphene growth on liquid copper
| Autor: | Juan Santiago Cingolani, Francesco La Porta, Maciej Jankowski, Oleg Konovalov, Gertjan J. C. van Baarle, Costas Galiotis, Mie Andersen, Gilles Renaud, Irene M. N. Groot, Karsten Reuter, Mehdi Saedi, Anastasios C. Manikas, Marc de Voogd, Christos Tsakonas |
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| Přispěvatelé: | Nanostructures et Rayonnement Synchrotron (NRS ), Modélisation et Exploration des Matériaux (MEM), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Liquid metal
Materials science General Physics and Astronomy Nanotechnology 02 engineering and technology Chemical vapor deposition 010402 general chemistry liquid metal catalyst 01 natural sciences Article law.invention symbols.namesake CVD graphene law General Materials Science two-dimensional materials ComputingMilieux_MISCELLANEOUS Atmospheric pressure Graphene General Engineering radiation optical microscopy 021001 nanoscience & nanotechnology Multiscale modeling self-organization 0104 chemical sciences X-ray diffraction ddc:540 Raman spectroscopy symbols Crystallite [PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph] 0210 nano-technology Dispersion (chemistry) |
| Zdroj: | ACS Nano, 15(7), 12455. AMER CHEMICAL SOC ACS Nano ACS Nano, American Chemical Society, 2021, 15 (6), pp.9638-9648. ⟨10.1021/acsnano.0c10377⟩ ACS Nano, 2021, 15 (6), pp.9638-9648. ⟨10.1021/acsnano.0c10377⟩ ACS nano 15(6), 9638-9648 (2021). doi:10.1021/acsnano.0c10377 |
| ISSN: | 1936-0851 |
| Popis: | ACS nano 15(6), 9638 - 9648 (2021). doi:10.1021/acsnano.0c10377 The synthesis of large, defect-free two-dimensional materials (2DMs) such as graphene is a major challenge toward industrial applications. Chemical vapor deposition (CVD) on liquid metal catalysts (LMCats) is a recently developed process for the fast synthesis of high-quality single crystals of 2DMs. However, up to now, the lack of in situ techniques enabling direct feedback on the growth has limited our understanding of the process dynamics and primarily led to empirical growth recipes. Thus, an in situ multiscale monitoring of the 2DMs structure, coupled with a real-time control of the growth parameters, is necessary for efficient synthesis. Here we report real-time monitoring of graphene growth on liquid copper (at 1370 K under atmospheric pressure CVD conditions) via four complementary in situ methods: synchrotron X-ray diffraction and reflectivity, Raman spectroscopy, and radiation-mode optical microscopy. This has allowed us to control graphene growth parameters such as shape, dispersion, and the hexagonal supra-organization with very high accuracy. Furthermore, the switch from continuous polycrystalline film to the growth of millimeter-sized defect-free single crystals could also be accomplished. The presented results have far-reaching consequences for studying and tailoring 2D material formation processes on LMCats under CVD growth conditions. Finally, the experimental observations are supported by multiscale modeling that has thrown light into the underlying mechanisms of graphene growth. Published by Soc., Washington, DC |
| Databáze: | OpenAIRE |
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