Synthesis of linked carbon monolayers: films, balloons, tubes, and pleated sheets.
Because of their potential for use in advanced electronic, nanomechanical, and other applications, large two-dimensional, carbon-rich networks have become an important target to the scientific community. Current methods for the synthesis of these materials have many limitations including lack of molecular-level control and poor diversity. Here, we present a method for the synthesis of two-dimensional carbon nanomaterials synthesized by Mo- and Cu-catalyzed cross-linking of alkyne-containing self-assembled monolayers on SiO(2) and Si(3)N(4). When deposited and cross-linked on flat surfaces, spheres, cylinders, or textured substrates, monolayers take the form of these templates and retain their structure on template removal. These nanomaterials can also be transferred from surface to surface and suspended over cavities without tearing. This approach to the synthesis of monolayer carbon networks greatly expands the chemistry, morphology, and size of carbon films accessible for analysis and device applications.
Frederick Seitz Materials Research Laboratory, Departments of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
Mitchell J
MJ
Schultz
Xiaoyu
X
Zhang
Sakulsuk
S
Unarunotai
Dahl-Young
DY
Khang
Qing
Q
Cao
Congjun
C
Wang
Changhui
C
Lei
Scott
S
MacLaren
Julio A N T
JA
Soares
Ivan
I
Petrov
Jeffrey S
JS
Moore
John A
JA
Rogers