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Catalytic Nano-Pen for Cutting Graphene


25.08.2011
| Ref.Nr. 08133
Physics&Engineering

Scheme (left) and scanning tunneling microscope (STM) image of a graphene trench made by the catalytic nano-pen Background
Graphene, a monoatomic layer of graphite, is a promising candidate for future (nano)electronic applications. Currently however there are no techniques available for reproducibly cutting graphene with nanometer precision.

Technology
We provide a catalytic Nano-Pen for high speed trench channeling of mono- and multilayer graphene using silver nanoparticles in an ambient environment and at elevated temperatures. A silver nanoparticle located at a graphene edge catalyzes oxidation of neighboring carbon atoms, thereby burning a trench into the graphene layer.

IP Rights
German Patent DE102008053691B3
US Patent Application

Patent Owner
Humboldt-Universität zu Berlin, Germany

Application Area:
Transparent and flexible electrodes, Flexible Solar cells, Flexible displays, Transistors, Memories
Development Stage: Proof of Concept
Schlagworte: Carbon, Graphene, Lithography,
Weitere Kategorien: Catalysis, Physics & Engineering
Bild des Benutzers Dr. Kirk Haselton
Licensing Manager: Dr. Kirk Haselton
T +49 30 2125 4842
F +49 30 2125 4822
Suitable Industry: (Nano)electronic, Optoelectronic, Consumer Electronic
Benefits:
  • high-precision lithography on graphene
  • cutting of smooth trenches (peak-to-peak roughness below 2 nm)
  • cutting speeds up to 250 nm/s
  • Environmentally friendly (gold or silver as catalytic material)
  • User friendly (transfer pattern directly from computer to graphene layer)
  • Economically priced (no need for complex high-vacuum installations as is required for electron beam lithography)