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Low‐Temperature and Rapid Growth of Large Single‐Crystalline Graphene with Ethane
Author(s) -
Sun Xiao,
Lin Li,
Sun Luzhao,
Zhang Jincan,
Rui Dingran,
Li Jiayu,
Wang Mingzhan,
Tan Congwei,
Kang Ning,
Wei Di,
Xu H. Q.,
Peng Hailin,
Liu Zhongfan
Publication year - 2018
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201702916
Subject(s) - graphene , materials science , methane , growth rate , carbon fibers , chemical engineering , foil method , graphene nanoribbons , nanotechnology , composite material , chemistry , organic chemistry , composite number , engineering , geometry , mathematics
Future applications of graphene rely highly on the production of large‐area high‐quality graphene, especially large single‐crystalline graphene, due to the reduction of defects caused by grain boundaries. However, current large single‐crystalline graphene growing methodologies are suffering from low growth rate and as a result, industrial graphene production is always confronted by high energy consumption, which is primarily caused by high growth temperature and long growth time. Herein, a new growth condition achieved via ethane being the carbon feedstock to achieve low‐temperature yet rapid growth of large single‐crystalline graphene is reported. Ethane condition gives a growth rate about four times faster than methane, achieving about 420 µm min −1 for the growth of sub‐centimeter graphene single crystals at temperature about 1000 °C. In addition, the temperature threshold to obtain graphene using ethane can be reduced to 750 °C, lower than the general growth temperature threshold (about 1000 °C) with methane on copper foil. Meanwhile ethane always keeps higher graphene growth rate than methane under the same growth temperature. This study demonstrates that ethane is indeed a potential carbon source for efficient growth of large single‐crystalline graphene, thus paves the way for graphene in high‐end electronical and optoelectronical applications.