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arXiv · 1308.1371

Organometallic Hexahapto Functionalization of Single Layer Graphene as a Route to High Mobility Graphene Devices

Santanu Sarkar·Hang Zhang·Jhao-Wun Huang·Fenglin Wang·Elena Bekyarova·Chun Ning Lau·Robert C. Haddon
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Abstract

Organometallic hexahapto chromium metal complexation of single layer graphene, which involves constructive rehybridization of the graphene pi-system with the vacant chromium d orbital, leads to field effect devices which retain a high degree of the mobility with enhanced on-off ratio. This hexahapto mode of bonding between metal and graphene is quite distinct from the modification in electronic structure induced by conventional covalent sigma-bond formation with creation of sp3 carbon centers in graphene lattice and this chemistry is reversible.

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Santanu Sarkar, Hang Zhang, Jhao-Wun Huang, Fenglin Wang, Elena Bekyarova, Chun Ning Lau, Robert C. Haddon. 2013-08-06. Organometallic Hexahapto Functionalization of Single Layer Graphene as a Route to High Mobility Graphene Devices. https://doi.org/10.1002/adma.201203161

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