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Nano Lett. 2008 Oct;8(10):3441-5. doi: 10.1021/nl8023092. Epub 2008 Sep 10.

Wafer-scale reduced graphene oxide films for nanomechanical devices.

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  • 1Naval Research Laboratory, Washington, DC 20375, USA.


We report a process to form large-area, few-monolayer graphene oxide films and then recover the outstanding mechanical properties found in graphene to fabricate high Young's modulus (<E> =185 GPa), low-density nanomechanical resonators. Wafer-scale films as thin as 4 nm are sufficiently robust that they can be delaminated intact and resuspended on a bed of pillars or field of holes. From these films, we demonstrate radio frequency resonators with quality factors (up to 4000) and figures of merit ( f x Q>10(11)) well exceeding those of pure graphene resonators reported to date. These films' ability to withstand high in-plane tension (up to 5 N/m) as well as their high Q-values reveals that film integrity is enhanced by platelet-platelet bonding unavailable in pure graphite.

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