Engineering Graphene Mechanical Systems
Abstract
We report a method to introduce direct bonding between graphene platelets that enables the transformation of a multilayer chemically modified graphene (CMG) film from a paper mache-like structure into a stiff, high strength material. On the basis of chemical/defect manipulation and recrystallization, this technique allows wide-range engineering of mechanical properties (stiffness, strength, density, and built-in stress) in ultrathin CMG films. A dramatic increase in the Young s modulus (up to 800 GPa) and enhanced strength (sustainable stress >/=1 GPa) due to cross-linking, in combination with high tensile stress, produced high-performance (quality factor of 31000 at room temperature) radio frequency nanomechanical resonators. The ability to fine-tune intraplatelet mechanical properties through chemical modification and to locally activate direct carbon carbon bonding within carbon-based nanomaterials will transform these systems into true materials-by-design for nanomechanics.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 05, 2012
- Accession Number
- ADA590807
Entities
People
- Brian H. Houston
- Chad E. Junkermeier
- Eric S. Snow
- James C. Culbertson
- Jeremy T. Robinson
- Maxim K. Zalalutdinov
- Paul E Sheehan
- Rory Stine
- Thomas L. Reinecke
Organizations
- United States Naval Research Laboratory