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Large‐Area Single‐Crystal Graphene via Self‐Organization at the Macroscale
Author(s) -
Ta Huy Quang,
Bachmatiuk Alicja,
Mendes Rafael Gregorio,
Perello David J.,
Zhao Liang,
Trzebicka Barbara,
Gemming Thomas,
Rotkin Slava V.,
Rümmeli Mark H.
Publication year - 2020
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202002755
Subject(s) - graphene , materials science , wafer , bilayer graphene , crystallite , crystal (programming language) , nanotechnology , bilayer , layer (electronics) , single crystal , condensed matter physics , crystallography , membrane , physics , biology , chemistry , computer science , metallurgy , genetics , programming language
In 1665 Christiaan Huygens first noticed how two pendulums, regardless of their initial state, would synchronize. It is now known that the universe is full of complex self‐organizing systems, from neural networks to correlated materials. Here, graphene flakes, nucleated over a polycrystalline graphene film, synchronize during growth so as to ultimately yield a common crystal orientation at the macroscale. Strain and diffusion gradients are argued as the probable causes for the long‐range cross‐talk between flakes and the formation of a single‐grain graphene layer. The work demonstrates that graphene synthesis can be advanced to control the nucleated crystal shape, registry, and relative alignment between graphene crystals for large area, that is, a single‐crystal bilayer, and (AB‐stacked) few‐layer graphene can been grown at the wafer scale.