"Graphene has been hailed as a wonder material since it was first isolated from graphite in 2004. Graphene is just a single atom thick but it is flexible, stronger than steel, and capable of efficiently conducting heat and electricity."
"However, widespread industrial adoption of graphene has so far been limited by the expense of producing it. Affordable graphene production could lead to a wide range of new technologies reaching the market, including synthetic skin capable of providing sensory feedback to people with limb prostheses".
University Of Glasgow, Press release
From Materials Science
Since first being synthesized by Andre Geim and Kostya Novoselov at the University of Manchester in 2004, there has been an extensive effort to exploit the extraordinary properties of graphene. However the cost of graphene in comparison to more traditional electronic materials has meant that its uptake in electronic manufacturing has been slow. Now researchers at the University of Glasgow have discovered a way to create large sheets of graphene using the same type of cheap copper used to manufacture lithium-ion batteries. ⓐ
To produce high-quality material scaled-up for electronics on large areas, though, graphene has proved more expensive than standard electronic substrates such as silicon. ⓐ
A large part of this expense is the substrate on which Graphene is generally produced. By using a process of chemical vapor deposition (CVD), graphene has often been grown as a monolayer (a layer one atom thick) by exposing platinum, nickel or titanium carbide to ethylene or benzene at high temperatures. Recent production methods have lowered these costs somewhat by incorporating copper as a substrate, but even this method can still prove expensive. ⓐ
To help drastically reduce these costs, the researchers came up with the idea of depositing high-quality graphene on the surface of inexpensive copper foils often used to make the ultra-thin cathodes (negative electrodes) in lithium-ion batteries. As it turns out, the surface of the copper proved to be both completely smooth and a superior substrate on which to form the graphene. ⓐ
University of Glasgow Press Release
University of Glasgow researchers make graphene production breakthrough
Original research. Open Access
Synthesis of Large Area Graphene for High Performance in Flexible Optoelectronic Devices
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