Back to Search Start Over

Direct synthesis of single-crystal bilayer graphene on various dielectric substrates

Authors :
Chen, Xiangping
Xing, Xianqin
Liu, Wenyu
Lu, Zhanjie
Ying, Hao
Huang, Le
Zhang, Zhiyong
Wu, Shunqing
Cheng, Zhihai
Chen, Shanshan
Publication Year :
2022

Abstract

In this work, a novel method to grow high-quality and large bilayer graphene (BLG) directly on various dielectric substrates was demonstrated. Large area single-crystal monolayer graphene was applied as a seeding layer to facilitate the homo-epitaxial synthesis of single crystal BLG directly on insulating substrates. The Cu nano-powders (Cu NP) with nanostructure and high surface-area were used as the remote catalysis to provide long-lasting catalytic activity during the graphene growth. The TEM results confirmed the single-crystalline nature of the BLG domains, which validates the superiority of the homo-epitaxial growth technique. The as-grown BLG show comparable quality with the CVD-grown BLG on metal surface. Field-effect transistors directly fabricated on the as-grown BLG/SiO$ _2 $/Si showed a room temperature carrier mobility as high as 2297 cm $ ^2 $ V$ ^{-1}$ s $^{-1} $.

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.2204.00194
Document Type :
Working Paper