Jonathan Coleman (center) and materials science team members at Trinity College, Dublin. (Photo: Trinity)
Imagine getting a text on your phone advising you that the milk carton in your fridge is almost empty (so it’s time to order, or pick up, a new one!), or that the milk in that carton is starting to spoil. It is extremely likely that will not only be possible, but be happening before you’ve experienced too many more birthdays.
A team of materials scientists at Trinity College in Dublin have figured out how to make that happen; They just need more time to work out some critical details, Smithsonian.com reported this week. Citing a more technical report published this month in the journal Science, Smithsonian noted that the key is a first-ever 2-D transistor made of a form of graphite – a natural material “that’s dug out of the ground,” said as leader Jonathan Coleman put it. The honeycomb lattice of carbon they’re working with is has a depth of one atom, making it suitable for an “unimaginable” range of potential uses, Coleman said.
One would be that milk carton label. Others could – and likely will – include supermarket price labels that update themselves, wine bottle labels that can warn you when the bottles (and thus the wine) are being stored in too warm a location.
Perhaps best of all, the new 2-D printed electronics are cheaper than current versions, and they don’t have the same performance limitations having to do with stability and energy conversion.
“If you can print electronics very cheaply, you can imagine things that are almost unimaginable,” Coleman said.