Rapid Growth of Large Single-Crystalline Graphene via Second Passivation and Multistage Carbon Supply

Li Lin; Luzhao Sun; Jincan Zhang; Jingyu Sun; Ai Leen Koh; Hailin Peng; Zhongfan Liu

doi:10.1002/adma.201600403

Rapid Growth of Large Single-Crystalline Graphene via Second Passivation and Multistage Carbon Supply

Adv Mater. 2016 Jun;28(23):4671-7. doi: 10.1002/adma.201600403. Epub 2016 Apr 9.

Authors

Li Lin¹, Luzhao Sun^{1

2}, Jincan Zhang^{1

2}, Jingyu Sun^{1

3}, Ai Leen Koh⁴, Hailin Peng¹, Zhongfan Liu¹

Affiliations

¹ Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China.
² Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, P. R. China.
³ Department of Engineering, Cambridge Graphene Centre (CGC), University of Cambridge, Cambridge, CB3 0FA, UK.
⁴ Stanford Nano Shared Facilities, Stanford University, Stanford, CA, 94305, USA.

PMID: 27061704
DOI: 10.1002/adma.201600403

Abstract

A second passivation and a multistage carbon-source supply (CSS) allow a 50-fold enhancement of the growth rate of large single-crystalline graphene with a record growth rate of 101 μm min(-1) , almost 10 times higher than for pure copper. To this end the CSS is tailored at separate stages of graphene growth on copper foil, combined with an effective suppression of new spontaneous nucleation via second passivation.

Keywords: large single-crystalline graphene; multistage carbon supply; rapid growth; second passivation.