Basf Se Corporation

Max-planck-gesellschaft Zur F&#xf6;rderung Der Wissenschaften E. V.

Empa-eidgenoessische Materialpruefungs-und Forschungsanstalt

Empa Eidgenossische Materialprufungs-und Forschungsanstalt

Empa Materials Science and Technology

Empa

Jinming Cai

Roman Fasel

Pascal Ruffieux

Klaus Muellen

Xinliang Feng

Tobias Hintermann

Klaus Müllen

Matthias Georg Schwab

Juan Ramon Sanchez Valencia

Bo Yang

Carlos Sanchez-Sanchez

Jia Liu

Tim Dumslaff

Junzhi Liu

Stephan Blankenburg

Carlo Pignedoli

Daniele Passerone

Reinhard Berger

Provided are graphene nanoribbons with controlled zig-zag edge and cove edge configuration and methods for preparing such graphene nanoribbons. The nanoribbons are selected from the following formulae. 

Graphene nanoribbons with controlled zig-zag edge and cove edge configuration

The present invention relates to a segmented graphene nanoribbon, comprising at least two different graphene segments covalently linked to each other, each graphene segment having a monodisperse segment width, wherein the segment width of at least one of said graphene segments is 4 nm or less and to a method for preparing it by polymerizing at least one polycyclic aromatic monomer compound and/or at least one oligo phenylene aromatic hydrocarbon monomer compound to form at least one polymer and by at least partially cyclodehydrogenating the one or more polymer.

Segmented graphene nanoribbons

The present invention relates to a graphene nanoribbon, comprising a repeating unit which comprises at least one modification, wherein the modification is selected from a heteroatomic substitution, a vacancy, a sphybridization, a Stone-Wales defect, an inverse Stone-Wales defect, a hexagonal sphybridized carbon network ring size modification, and any combination thereof.

Graphene nanoribbons with controlled modifications

The present invention relates to a process for preparing a graphene nanoribbon, which comprises: (a) providing at least one aromatic monomer compound which is selected from at least one polycyclic aromatic monomer compound, at least one oligo phenylene aromatic monomer compound, or combinations thereof, on a solid substrate, (b) polymerization of the aromatic monomer compound so as to form at least one polymer on the surface of the solid substrate, (c) at least partially cyclodehydrogenating the one or more polymers of step (b), wherein at least step (b) is carried out at a total pressure p(total) of at least 1&#xd7;10mbar; and a partial oxygen pressure p(O) and partial water pressure p(HO) which satisfy the following relation: p(O)&#xd7;p(H20)&#x3c;3&#xd7;10mbar.

Process for preparing graphene nanoribbons

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Zurich, Switzerland

Jinming Cai