8 May 2018 Hydrogen-assisted graphene transfer: surface engineering for chemical, electronic, and biological applications
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Functional surfaces find application in a number of areas, such as designing flexible electronic devices and integrating electronic systems with biological ones. However, the preparation of functional surfaces entails processing that is destructive to fragile polymer or biological substrates. A benign transfer method is thus needed to move pre-functionalized surfaces from a stable substrate to a fragile one. Chemical hydrogenation of graphene weakens the adhesion force between the graphene and its substrate. We exploit this phenomenon to construct a method for transferring graphene with pre-formed chemical, physical, and electronic functionalities from a heat-, vacuum-, and chemical-stable substrate such as silicon to several less robust ones, including polymers and living cells. We also discuss reversibility of graphene hydrogenation and the implications for re-adhering graphene securely to new substrates.
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Keith E. Whitener, Keith E. Whitener, Woo-Kyung Lee, Woo-Kyung Lee, Thomas O'Shaughnessy, Thomas O'Shaughnessy, Jeremy T. Robinson, Jeremy T. Robinson, Paul E. Sheehan, Paul E. Sheehan, "Hydrogen-assisted graphene transfer: surface engineering for chemical, electronic, and biological applications", Proc. SPIE 10638, Ultrafast Bandgap Photonics III, 106380F (8 May 2018); doi: 10.1117/12.2304366; https://doi.org/10.1117/12.2304366

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