Transparent conductive article

Abstract

A transparent conductive article which includes one of more graphene sheets, at least one of the sheets having a sheet resistance of less than 100 Ω/□. The transparent conductive article includes no more than ten graphene sheets. The transparent conductive article can have a transmission of at least 90%. The one or more sheets can have a transmission of at least 90%. A method of making a transparent conductive sheet includes heat treating a chemical vapor deposition (CVD) grown graphene sheet, the sheet having a width dimension of at least 1 cm, in a non-oxidizing environment to a temperature of at least 2400° C. for a sufficient period of time to have a sheet resistance of less than 100 Ω/□ and a transmittance of at least 90%. Prior to heat treating, the sheet is disposed on a suspension media, such as flexible graphite, having a chemical and thermal stability such that the suspension media functionally survives the heat treating step.

Dependencies are inferred from the claim text.