1. Polycrystalline Graphene with Single Crystalline Electronic Structure
- Author
-
Lola Brown, Yui Ogawa, Maria C. Asensio, Mark Levendorf, Jiwoong Park, Dong-Ki Kim, Haofei I. Wei, Cheol-Joo Kim, Eric Monkman, Robin W. Havener, Daniel Shai, Kyle Shen, Edward Lochocki, and José Avila
- Subjects
Materials science ,Graphene ,Mechanical Engineering ,Physics::Optics ,Bioengineering ,Heterojunction ,Nanotechnology ,General Chemistry ,Electronic structure ,Condensed Matter Physics ,Characterization (materials science) ,law.invention ,Condensed Matter::Materials Science ,law ,General Materials Science ,Crystallite ,Bilayer graphene ,Graphene nanoribbons ,Graphene oxide paper - Abstract
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.
- Published
- 2014
- Full Text
- View/download PDF