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Science Technology

Polymer-Based Graphene Substitute Is Easy To Mass-Produce 37

Zothecula writes: For all the attention graphene gets thanks to its impressive list of properties, how many of us have actually encountered it in anything other than its raw graphite form? Show of hands. No-one? That's because it is still difficult to mass-produce without introducing defects. Now a team at the Korea Institute of Science and Technology has developed a graphene substitute from plastic that offers the benefits of graphene for use in solar cells and semiconductor chips, but is easy to mass-produce (abstract).
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Polymer-Based Graphene Substitute Is Easy To Mass-Produce

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  • Let me know when it's mass-produced.

  • They don't say it has _all_ the properties of defect-free graphene -- so, what properties are mismatched? Just the important ones?

    • Yes. I hyped myself about capacitors good enough to replace batteries, and graphene is good for that use. No idea if the substitute is any useful there.

  • I have used some (Score:2, Redundant)

    by penguinoid ( 724646 )

    I regularly use graphene stacked in several layers so that the layers can slide off each other, with a little clay mixed in for harness. I use it to produce flexible, resilient optical communications devices that can be folded like paper, with a longer lifetime than most magnetic or charge-based storage devices.

  • Confusing article (Score:4, Informative)

    by marciot ( 598356 ) on Friday July 04, 2014 @02:35PM (#47384759)

    Is the end result graphene, a lattice of carbon atoms, or not? What exactly is a "substitute carbon nanosheet" if not graphene itself? Is the process new or the material new? This article is like saying you developed an easier process for creating wood-pulp-based white laminar sheets that are flexible and suitable for writing letters and calling it a "paper substitute", without clearly saying why it isn't paper.

    • by radtea ( 464814 )

      What exactly is a "substitute carbon nanosheet"

      Reading between the lines, it looks like it is a thin layer of mixed carbon and hydrogen with a structure that they have not yet properly characterized but which they have shown has the properties required for transparent electrodes in solar cells.

      Specifically, they say the properties of the layer can be controlled by the properties of the polymer they start with, which suggests that it partakes in the polymer's nature, which would mean it is more than just a single layer of carbon atoms.

      They may be being c

    • Is the end result graphene, a lattice of carbon atoms, or not? What exactly is a "substitute carbon nanosheet" if not graphene itself?

      It sounds to me like they're hedging because they haven't fully characterized what they get.

      As I undetstand it, producing carbon fiber from plastic consists of stretching a plastic (such as rayon - a string of carbon hexagons joined by oxygen links, or polyacriolnitrile - a carbon backbone with a C2N group hanging off every other carbon) so the long-chains are alligned, then

I've finally learned what "upward compatible" means. It means we get to keep all our old mistakes. -- Dennie van Tassel