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US 9,556,085 B2Granted
Graphene nanoribbons derived from poly(phenylene ethynylene) polymer, methods of making same, and uses thereof
AssigneeCornell University
InventorsWilliam R. Dichtel, Hasan Arslan, Fernando J. Uribe-Romo
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Abstract
Provided are graphene nanoribbons (GNRs), methods of making GNRs, and uses of the GNRs. The methods can provide control over GNR parameters such as, for example, length, width, and edge composition (e.g., edge functional groups). The methods are based on a metal catalyzed cycloaddition reaction at the carbon-carbon triple bonds of a poly(phenylene ethynylene) polymer. The GNRs can be used in devices such a microelectronic devices.
Claims22
A method for making a graphene nanoribbon comprising the steps of:
- a) contacting a poly(phenylene ethynylene) (PPE) polymer, an annulating compound, and a catalyst system comprising a metal catalyst and a protic acid, such that the PPE polymer is arylannulated;
- b) oxidizing the arylannulated polymer product from a), such that a graphene nanoribbon is formed.
A graphene nanoribbon (GNR) having the following structure:
- R1, R2, R3, and R4 are, at each occurrence in the GNR, independently selected from the group consisting of H, alkyl, aryl, ether, thioether, ester, carboxylic acid, amide, halide, and azide groups,
- n is from 10 to 500, and
- s+t is from 10 to 500,
- wherein R1, R2, R3, and R4 are not each H.
1 more element
Dependencies are inferred from the claim text.