Graphene can make explosives.

Scientists at the Moscow Institute of Physics and Technology have found that graphene may be the ideal material to make a plasma device, according to Maimusi. The plasma device, which uses graphene, can detect explosives, toxic chemicals and other organic compounds at the molecular level.

The scientific community has long been working on the potential application of "plasma" as a quasi-particle. In a recent paper published in the journal PhysicalReview B, the researchers pointed out that in solid substances, the free motion of free electrons constitutes a solid plasma, making full use of their physical properties, or can bring new breakthroughs in high-precision electron and optical research.

Metals and metalloids usually contain higher density free electrons. Therefore, scientists are particularly concerned about the enhancement of the physical effects caused by the interaction of electromagnetic waves and plasma surfaces in these materials. Subwave long-light polymerization or an important potential application that can turn on plasma effects can increase the sensitivity of plasma measurement devices to identify individual molecules.

Such measurement sensitivity exceeds the measurement range of all traditional(classical) optical instruments. However, plasmas in metals quickly lose energy due to the presence of resistors, so they can not self-stabilize. In order to overcome this problem, scientists have focused on the study of composite materials with predetermined microstructures, including graphene.

The team of Nanostructures spectroscopy laboratories led by Professor YuriLozovik developed a quantum model that can predict the plasma movement in graphene and show the operation of surface plasma emission diodes(SPED) and iso-exciton nanolasers(Spaser). The structure of the isosonuclear nanometer laser contains a layer of graphene. These devices are capable of operating in the infrared spectrum region and have a wide range of applications, such as detecting exploitable explosives and toxic chemicals.

Alexandre Dorofeenko, a member of the research team, said: "Graphenen-based isometric nanolasers can be used in the design and development of compact spectral measurement devices to detect individual molecules of objects, which will generate many potentially important applications. These graphene-based sensors can detect the chemical structure of organic matter by detecting the characteristic transition vibrations of organic molecules(molecular "fingerprints"). The emission and absorption wavelengths of the spectra generated by the molecular characteristic transition vibration fall in the middle infrared spectrum region, and these spectral regions are exactly the operating areas of the graphenene-based isoexciton nanolasers. "

The page contains the contents of the machine translation.