A kind of preparation method of metallic graphene

A graphene and metallic technology, applied in the field of preparation of metallic graphene, can solve problems such as unfavorable applications
CN104692367BInactive Publication Date: 2016-08-17SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2016-08-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of metallic graphene. The method comprises the following steps: a, placing a clean copper sheet into a chemical vapor deposition furnace always vacuumizing, to obtain graphene; b, depositing gold, copper, aluminum, titanium and other metals on the graphene obtained in the step a; c, placing the graphene deposited with 1-5nm of metal obtained from the step b into a vacuum annealing furnace, annealing at the temperature of 100-500DEG C, maintaining the annealing within 24h, cooling a vacuum annealing furnace to room temperature, and taking out the graphene deposited with 1-5nm of metal, namely metallic graphene. The metallic graphene not only maintains the characteristics of single-layer graphene, but also shows metallicity.
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Description

technical field

[0001] The invention relates to a method for preparing metallic graphene, in particular to a method for preparing metallic graphene. Background technique

[0002] In 2004, two scientists from the University of Manchester, Andre Jem and Kostya Novoselov, peeled off graphite flakes from graphite. They stuck the two sides of the graphite flakes on a special adhesive tape, and tore off The graphite sheet can be divided into two by removing the tape. They kept repeating this operation to peel off the graphite flakes thinner and thinner. In this way, they obtained graphite flakes composed of only one layer of carbon atoms, which is graphene [1]. The high mobility [2] and light transmittance of graphene make graphene have many potential applications.

[0003] However, in the current preparation of graphene, the resistance increases with the decrease of temperature, and the resistance of graphene increases to a larger value at low temperature, which is a typical se...

Claims

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