Skip to Main content Skip to Navigation
Theses

Graphène pour la nanoélectronique : de la croissance CVD jusqu'à la suparconductivité de proximité à deux dimensions

Abstract : This thesis presents a wide range of graphene activity: from chemical vapor deposition (CVD) of graphene growth on Cu surface, to two dimensional mesoscopic graphene devices for superconductivity studies. I first show that, in the CVD process of fabricating graphene, a cyclic injection of carbon feedstock under a constant hydrogen background allows to suppress the formation of multilayer graphene, which has plagued this fabrication method since its early days. With the CVD grown graphene,I demonstrate applications such as flexible transparent electrodes. Mobility of our CVD graphene at 4 K temperature reaches as high as 8,000 cm^2/V/s. Chemical treatment studies based on copper etchant show that control of the density of defects in CVD graphene can be precisely achieved by a chemical route. This thesis finishes at sub 1 K temperature transport measurements of a new type of superconducting array decorated graphene transistor. This type of hybride system is a prototypical model for quantum phase transition studies. I then show that the experimental observations are in good agreement with the predicted superconductor-to-metal quantum phase transition at the zero-temperature limit.
Document type :
Theses
Complete list of metadatas

https://tel.archives-ouvertes.fr/tel-00956738
Contributor : Abes Star :  Contact
Submitted on : Friday, March 7, 2014 - 11:04:17 AM
Last modification on : Thursday, November 19, 2020 - 1:01:04 PM
Long-term archiving on: : Saturday, June 7, 2014 - 11:20:33 AM

File

pdf2star-1383813502-38048_HAN_...
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-00956738, version 1

Collections

STAR | CNRS | UGA | NEEL

Citation

Zheng Han. Graphène pour la nanoélectronique : de la croissance CVD jusqu'à la suparconductivité de proximité à deux dimensions. Autre. Université de Grenoble, 2013. Français. ⟨NNT : 2013GRENT058⟩. ⟨tel-00956738⟩

Share

Metrics

Record views

1552

Files downloads

3376