By Tushna Commissariat
Here at Physics World, the word graphene gets used a lot. You
might find that simply saying the word “graphene” elicits a groan from
most of the editorial team. But this is usually followed quite swiftly
by a fair amount of interest, because it’s undeniable that graphene is
some kind of “wonder material” with a seemingly endless list of bizarre properties and applications.
Along with the plethora of potential applications for graphene comes an
interesting array of names for graphene-based materials. When our news
editor Michael Banks heard that scientists in Spain had created an acoustic analogue for graphene, he dubbed it “graphone” – a name that has a certain resonance to it!
But it seems that researchers at the UK’s University of Exeter
really ran out of suitable graphene-related names recently as they have
decided to call their new graphene-based material “GraphExeter”.
According to the researchers, GraphExeter is the most transparent,
lightweight and flexible version of graphene that is also an excellent
at conducting electricity, and so “could revolutionize the creation of
wearable electronic devices, such as clothing containing computers,
phones and MP3 players”.
The researchers created GraphExeter by sandwiching molecules of
ferric chloride between two layers of graphene. Ferric chloride enhances
the electrical conductivity of graphene without affecting the
material’s transparency. The researchers say it is also much more
flexible than indium tin oxide (ITO), the main conductive material
currently used in electronics. As ITO is used so extensively, it is expensive and resources are expected to run out by 2017. The research is published in the journal Advanced Materials here.
Lead researcher Monica Craciun says “GraphExeter could revolutionize
the electronics industry. It outperforms any other carbon-based
transparent conductor used in electronics and could be used for a range
of applications, from solar panels to ‘smart’ T-shirts. We are very
excited about the potential of this material and look forward to seeing
where it can take the electronics industry in the future.”
According to a University of Exeter press release, the researchers
are “now developing a spray-on version of GraphExeter, which could be
applied straight onto fabrics, mirrors and windows”. While the
applications of GraphExeter may be varied and interesting, the
researchers might have to come up with a slightly more user-friendly
name for their new material if they intend to use it in a T-shirt
venture!
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