PSE Success Story
Graphene Research at Argonne
Graphene is an extraordinary material made up of hexagonally-packed carbon atoms. A sheet of
graphene is only one atom thick, making it nature's version of an ideal two-dimensional material.
The band structure and symmetry of graphene result in electron mobilities that are two orders
of magnitude greater than those observed in silicon. In addition, graphene is highly transparent,
thermally conductive, flexible, chemically inert, biologically compatible and 200 times stronger
than steel. Research efforts focus on using the properties of graphene for a variety of applications
and technological advancements.
At Argonne's Center for Nanoscale Materials (CNM), researchers are exploring state-of-the-art
synthesis, characterization, processing and novel applications of graphene.
To identify material defects and to guide the optimization of both established and novel
large-scale synthesis efforts of graphene.
Graphene: Synthesis, characterization, processing, application.
Using the highest resolution microscopes
at Argonne's CNM, scientists are able to
characterize the structural, electronic
and chemical properties of graphene on
an atomic scale.
Many properties of graphene have been
characterized at the atomic scale. The
first synthesis of graphene on single
crystal copper (Cu) has been achieved.
Its characterization revealed specific
defects as the root cause for decreased
performance of graphene-grown Cu foil.
Argonne researchers are also actively
modifying the physical properties of
graphene using chemistry, engineering
and nanolithography. Some of the direct
applications of Argonne's graphene research
include advanced solar cell design, enhancing electronic material performance and efficiency,
and the use of graphene as a supporting substrate to probe basic energy conversion processes.
"The novel synthesis and processing of graphene, combined with atomic-scale
characterization, is critical at a fundamental level that will directly impact the practical
application of this material," said Argonne scientist Nathan Guisinger.
- Poster: Graphene Research at Argonne (pdf)