Chemical vapor deposition growth of large single-crystal bernal-stacked bilayer graphene from ethanol

被引：27

作者：

Chen, Xiao ^{[1
]}

Xiang, Rong ^{[1
]}

Zhao, Pei ^{[2
]}

An, Hua ^{[1
]}

Inoue, Taiki ^{[1
]}

Chiashi, Shohei ^{[1
]}

Maruyama, Shigeo ^{[1
,3
]}

机构：

[1] Univ Tokyo, Dept Mech Engn, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan

[2] Zhejiang Univ, Inst Appl Mech, 38 Zheda Rd, Hangzhou 310027, Zhejiang, Peoples R China

[3] Natl Inst Adv Ind Sci & Technol, Energy NanoEngn Lab, 1-2-1 Namiki, Tsukuba, Ibaraki 2058564, Japan

来源：

CARBON | 2016年 / 107卷

关键词：

HIGH-QUALITY; COPPER FOILS; CU; MONOLAYER; HYDROGEN; GRAINS; FILMS;

D O I：

10.1016/j.carbon.2016.06.078

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Using ethanol as a precursor, single-crystal bilayer graphene domains with dimensions up to hundreds of micrometer, one of the largest reported so far, were synthesized on Cu foils by chemical vapor deposition (CVD). Raman spectroscopy analysis revealed that the bilayers are homogeneously AB-stacked, with very low D-band intensity. Selected area electron diffraction analysis also confirmed the bernal stacking order and the large area crystallinity. Surprisingly, decreasing ethanol pressure in CVD shows an unambiguous tread from self-limited single layer to a multi-layer graphene, and there exists a narrow window of ethanol pressure which is preferred for the formation of large domain bilayer graphene. This suggests the dual effect of ethanol in graphene growth and demonstrates that the formation of different layers of graphene can be controlled by carefully tuning single parameter: ethanol pressure. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：852 / 856

页数：5

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