Graphene circuits from an inkjet printer Long gone are the days when the inkjet printer was the consumable that people bought for school projects and family photographs: a group of researchers from Cambridge University has added graphene-based transistors to the list of things that you can take from the output tray. The researchers, led by Andrea Ferrari of the …
Nanotechnology is hard.
Pencils are great at smearing down a disorderd streak of graphite particles and binding material; this bears a similar relationship to graphene circuitry as sand does to silicon-based semiconductors.
Graphene seems to have been known about since the 60s. What sort of 'before' were you thinking of?
Yes I wondered that too. But then again, if it's a field effect transistor the gate would be near but isolated from the channel, so perhaps it's been left out for clarity. As it is drawn it would appear to be a diode.
Wouldn't fancy the cost of replacing the gold/chromium cartridge in that thing either.
Used extensively in the fine chemical industry - it's a high-boiling point dipolar aprotic solvent meaning it has a high dipole that helps to solubilize materials but isn't capable of ionizing under 'reasonable' conditions.
Reading the data sheet is a bit like looking up your symptoms in a medical dictionary - scary
With correct handling, ventilation and recycling it's no problem. Doesn't mean that you should be using it in a 'normal' inkjet printer though
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