EINSTEIN PRESENTATION

Le Graphène

Sommaire

1. Les propriétés

2. Comment a-t-il été obtenu?

3. Les chercheurs ont-ils essayé cette configuration avec d'autres atomes?

4. Les applications possibles

Le Graphène

• est une couche d'atomes de carbone disposés en hexagone
• est un très bon conducteur d'léectricité

Découverte du Graphène

Comment obtenir du graphène ?

En arrachant une couche de graphite à l'aide d'un ruban adhésif

En oxydant du graphite dans un milieu acide et en utilisant de l'hydrazine pour le purifier

En le synthéthisant à partir de carbure de silicium chauffé à 1300 °C

En faisaint chauffer rapidement des obejts carbonés jusqu'à 2727 °C

Par dépôt chimique en phase vapeur

Les chercheurs ont-il essayé cette configuration avec d'autres atomes?

Ils ont réussi à créer des couches bidimensionnelles avec d'autres atomes que le carbone mais n'ont pas réussi à séparer le substrat de son support

Les applications possibles dans le domaine électronique

Dans le domaine de la biomédecine

• Détruire les tumeurs cancéreuses

• Faire un dosage précis des agents anti-inflammatoires

• Diagnostiquer les cancers et les maladies neurologiques

Bibliographie

https://www.products.pcc.eu/fr/blog/le-graphene-quest-ce-que-cest-et-a-quoi-sert-il/

https://www.ficsum.com/dire-archives/hiver-2015/technologie-graphene-le-materiau-miracle/

https://fr.wikipedia.org/wiki/Graph%C3%A8ne https://www.techniques-ingenieur.fr/actualite/articles/un-nouveau-cristal-2d-sur-le-point-detre-isole-48903/

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