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

doi:10.1002/adma.201203161

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

Mesoscale and Nanoscale Physics 2013-08-07 v1 Chemical Physics

Authors: 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.

Keywords

single layer graphene organometallic functionalization hexahapto bonding high mobility field effect devices rehybridization chromium complex

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@article{arxiv.1308.1371,
  title  = {Organometallic Hexahapto Functionalization of Single Layer Graphene as a Route to High Mobility Graphene Devices},
  author = {Santanu Sarkar and Hang Zhang and Jhao-Wun Huang and Fenglin Wang and Elena Bekyarova and Chun Ning Lau and Robert C. Haddon},
  journal= {arXiv preprint arXiv:1308.1371},
  year   = {2013}
}

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18 pages, 10 figures, Adv. Mat. 2013, 25, 1131-1136

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

Abstract

Keywords

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