Polycrystalline Graphene with Single Crystalline Electronic Structure

We report the scalable growth of aligned graphene and hexagonal boron nitride on commercial copper foils, where each film originates from multiple nucleations yet exhibits a single orientation. Thorough characterization of our graphene reveals uniform crystallographic and electronic structures on le...

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Bibliographic Details
Published in:Nano letters 2014-10, Vol.14 (10), p.5706-5711
Main Authors: Brown, Lola, Lochocki, Edward B, Avila, José, Kim, Cheol-Joo, Ogawa, Yui, Havener, Robin W, Kim, Dong-Ki, Monkman, Eric J, Shai, Daniel E, Wei, Haofei I, Levendorf, Mark P, Asensio, María, Shen, Kyle M, Park, Jiwoong
Format: Article
Language:English
Subjects:
Boron nitride
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Crystal structure
Electronic structure
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Electronic structure of nanoscale materials : clusters, nanoparticles, nanotubes, and nanocrystals
Equations of state, phase equilibria, and phase transitions
Exact sciences and technology
Foils (structural shapes)
Fullerenes and related materials
diamonds, graphite
General studies of phase transitions
Graphene
Materials science
Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals
Nanostructure
Nucleation
Optoelectronics
Physics
Specific materials
Structure of solids and liquids
crystallography
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Description
Summary:We report the scalable growth of aligned graphene and hexagonal boron nitride on commercial copper foils, where each film originates from multiple nucleations yet exhibits a single orientation. Thorough characterization of our graphene reveals uniform crystallographic and electronic structures on length scales ranging from nanometers to tens of centimeters. As we demonstrate with artificial twisted graphene bilayers, these inexpensive and versatile films are ideal building blocks for large-scale layered heterostructures with angle-tunable optoelectronic properties.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl502445j