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Portuguese graphene that hides planes and drones could transform defence
News2 July 2026

Portuguese graphene that hides planes and drones could transform defence

GTechPlasma, a spin-off from Instituto Superior Técnico in Lisbon, has developed a plasma-produced graphene powder that its researchers estimate could reduce an F-16's radar signature to that of a bird, and has already supplied 260 grams of the material to a Portuguese drone manufacturer. The development is notable for the graphene sector because it demonstrates a tunable, plasma-based production process capable of reaching 40 milligrams per minute, with industrialization underway through partner company Plasmaphene, targeting a market—radar-absorbent coatings—currently restricted to U.S. suppliers.