https://www.pnas.org/doi/full/10.1073/pnas.2511902122
Another way to make graphene, using lasers, is now garnering attention and gaining traction. The discovery of this easy-to-make graphene ignited efforts around the world to figure out the best ways to produce and use the new stuff,
And Gaetano Marrocco, an electrical engineer at the University of Rome Tor Vergata, in Italy, says that for eco-friendly wireless electronics, the material is a game-changer.
Sounds like an oxymoron!
Adding graphene flakes to concrete increases its strength by 35% (1). In 2018, Ford reported that adding smidgens of graphene to car components could reduce noise and boost mechanical properties and heat endurance (2).
yes just like I add boron nitride to my car....
the surface of any carbon-containing material, even paper, wood, or coconut shells, could be transformed into this graphene foam, or what is often called patterned graphene or laser-induced graphitic carbon.
The conductivity of graphene foam is not impressive enough to revolutionize smartphones or solar cells, but its properties make it appealing for other devices, such as flexible, wearable biosensors.
In 2024 alone, the material showed up in more than 3,000 journal papers, many of which described applications as diverse as soft skin electronics and electrodes for water splitting (7, 8). Many recent papers are aimed at fine-tuning the depth and strength of the laser to reap the maximum benefit from the graphene.
They’re currently developing wearable biosensors that could detect enzymes, antibodies, or glucose in bodily fluids like sweat.
Marrocco’s team is inscribing graphene-based sensors into plastic used for food packaging. These sensors, he says, could quickly detect spoiled food by its emissions of volatile organic compounds (VOCs)—gaseous substances that are sometimes toxic and are produced in industrial and domestic settings (12). A graphene “antenna,” also engraved on the plastic, would transmit the information to a nearby receiver. By integrating the sensor and antenna into packing material, he says, grocery stores and distributors could track foods’ freshness without using metal-rich electrodes. In theory, he says, the packing material could be reused; if it were recyclable or biodegradable, the sensor would be, too.
Finally, at the end of 2024, the Australian companies Halocell Energy and First Graphene announced an alliance for a two-year project for the manufacture of perovskite solar cells with graphene.
By incorporating PureGRAPH into its products, Halocell Energy hopes to expedite its manufacturing process and enhance light absorbing performance, which will enable the company to scale up commercial production to meet demand.
Halocell Energy is scheduled to release its first commercially available indoor perovskite solar cell module this
month, which can be used to charge small electronic goods, replacing disposable batteries. These graphene enhanced modules are said to be up to five times more efficient than conventional silicon solar cells.
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