December 1 - 6, 2024
Boston, Massachusetts
Symposium Supporters
2024 MRS Fall Meeting & Exhibit
EL03.03.02

Novel Synthetic Approaches for High-Mobility Graphene—From Decoupled Graphene on Cu/Sapphire to Artificial Intelligence Assisted Growth

When and Where

Dec 3, 2024
8:30am - 9:00am
Sheraton, Second Floor, Back Bay C

Presenter(s)

Co-Author(s)

Camilla Coletti1

Istituto Italiano di Tecnologia1

Abstract

Camilla Coletti1

Istituto Italiano di Tecnologia1
The scalable synthesis of graphene over flat and rigid templates – displaying quality comparable to that of mechanically exfoliated crystals – has become a central topic in the last years, as it would enable several high-end applications, scalable twistronic devices, and pave the way to enticing quantum technologies. In this talk, I will introduce the growth via non-reducing chemical vapor deposition (CVD) of decoupled graphene on crystalline Cu films deposited on sapphire. The resulting graphene is lying atop a thin Cu2O layer, and is charge neutral, low strained, and easy to transfer. Electrical transport measurements reveal unprecedented room temperature carrier mobilities for graphene grown on rigid substrates, exceeding 105 cm-2V-1s-1 when encapsulated in hexagonal boron nitride [1], thus opening realistic pathways for graphene-based high-end applications, including the exploration of innovative quantum platforms. Finally, I will discuss the transformative potential of artificial intelligence (AI) in materials science by demonstrating artificial neural network (ANN) assisted growth of high-quality graphene [2].

[1] Z. M. Gebeyehu, V. Mišeikis, S. Forti, N. Mishra, A. Boschi, A. Rossi, L. Martini, M. W. Ochapski, G. Piccinini, K. Watanabe, Takashi Taniguchi, Fabio Beltram, Sergio Pezzini, Camilla Coletti, under review.
[2] Sabattini et al., in preparation.

Keywords

chemical vapor deposition (CVD) (deposition) | electronic structure | interface

Symposium Organizers

Deji Akinwande, The University of Texas at Austin
Cinzia Casiraghi, University of Manchester
Carlo Grazianetti, CNR-IMM
Li Tao, Southeast University

Session Chairs

Carlo Grazianetti
Francesca Iacopi

In this Session