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Graphene and doped graphene elaborated by pulsed laser deposition

Abstract : Graphene is, by definition, a one-atom-thick pure carbon crystal with a honeycomb-like structure. Graphene has become of great interest in both scientific and engineering communities from the past 15 years, owing to its range of unique properties including high conductivity, transparency, strength, and thermal conductivity, with many potential applications in research and industry, as transparent electrodes, field emitters, biosensors, batteries, composites, and so on. One of the greatest challenges with graphene remains the control and reproducibility of the synthesis on large surfaces, as well as the analytical study, at the nanometric scale. In this thesis, we have proposed an alternative synthesis method based on a physical (and not chemical) process, combining pulsed laser deposition (PLD) with rapid thermal annealing (Rapid Thermal Annealing). This particular approach allows in particular the doping of the graphene layers with selected atoms, in a controlled and reproducible manner. Our work has contributed to broadening the fields of study of PLD in the field of thin-film synthesis. It also contribute to an advance in fundamental knowledge on the synthesis of graphene and boron-doped graphene, at the heart of current research efforts to integrate these materials into technological applications requiring ever-higher performance.
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Submitted on : Thursday, April 29, 2021 - 2:54:12 PM
Last modification on : Friday, April 30, 2021 - 3:22:32 AM
Long-term archiving on: : Friday, July 30, 2021 - 6:49:07 PM

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  • HAL Id : tel-03212304, version 1

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Yannick Bleu. Graphene and doped graphene elaborated by pulsed laser deposition. Materials Science [cond-mat.mtrl-sci]. Université de Lyon, 2020. English. ⟨NNT : 2020LYSES033⟩. ⟨tel-03212304⟩

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