Graphitization at interface between amorphous carbon and liquid gallium for fabricating large area graphene sheets | Zendy

Junichi Fujita | Zendy; Ryuuichi Ueki | Zendy; Yousuke Miyazawa | Zendy; Toshinari Ichihashi | Zendy

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Graphitization at interface between amorphous carbon and liquid gallium for fabricating large area graphene sheets

Author(s) -

Junichi Fujita,

Ryuuichi Ueki,

Yousuke Miyazawa,

Toshinari Ichihashi

Publication year - 2009

Publication title -

journal of vacuum science and technology b microelectronics and nanometer structures processing measurement and phenomena

Language(s) - English

Resource type - Journals

eISSN - 1520-8567

pISSN - 1071-1023

DOI - 10.1116/1.3253542

Subject(s) - graphene , materials science , gallium , graphite , amorphous carbon , amorphous solid , carbon fibers , substrate (aquarium) , silicon , layer (electronics) , siloxane , nanotechnology , stamping , chemical engineering , composite material , metallurgy , organic chemistry , composite number , chemistry , engineering , oceanography , geology , polymer

The authors have found that liquid gallium exhibits as a good graphitizing catalyst for a large area graphene sheet. While gallium and carbon are known to be an insoluble system, the authors have found that the catalytic reaction occurs at a very narrow interfacial region between amorphous carbon and liquid gallium. Amorphous carbon film was transformed into graphite layer composed of a few layers of graphene sheet. This thin graphene film can be easily transferred into silicon substrate through the intermediation of poly-dimethyl-siloxane rubber stamping

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