[Images above] Credit: NIST
Massachusetts Institute of Technology engineers report they created a material that is 10 times blacker than anything previously reported. The material is made from vertically aligned carbon nanotubes grown on aluminum with its oxide layer removed. The foil captures at least 99.995% of any incoming light.
Drexel University researchers showed polyphosphate salts can help to preserve MXene flakes in water. The MXene flakes in the study, armed with protective polyphosphate caps, lasted more than a month in water exposed to air without any sign of oxidation.
Researchers from the Indian Institute of Technology Guwahati showed that ‘intrinsic’ and ‘Rashba’ spin-orbit coupling are responsible for variations in the ways in which graphene bilayers conduct electricity.
Researchers used ultra-thin layers of 2D metasurfaces to create holograms that measure the polarization of light. The metasurface generates two overlapping holographic images, and the interface of the two images is analyzed to obtain amplitude contrast and phase difference, which allows identification of the polarization state.
Researchers from Chalmers University of Technology demonstrated graphene is an exceptionally good material for THz heterodyne detection, a fact which could revolutionize sensors used in next-generation space telescopes.
Researchers at Rensselaer Polytechnic Institute and other universities showed a specific defect (crystallographic dislocations) impacts the ability of halide perovskite to hold energy derived from light in the form of electrons.
Researchers from Aalto University, MIT, and Singapore-MIT Alliance for Research and Technology investigated whether the several billion AC devices expected to come online within 21st century could be powered by clean PV electricity. They concluded the potential added AC PV capacity is on par with global PV production capacity today as a whole.
A researcher from Florida Atlantic University found that simulation research on automated vehicle ride-hailing systems indicates greater ride pooling may be key to major improvements in transportation sustainability. These systems do not require self-driving vehicles but simply centralized fleet coordination.
Researchers from the Korea Research Institute of Chemical Technology made a new, tough, transparent polycarbonate composite replacing both BPA and glass fibers with two biomass-derived alternatives—isosorbide and cellulose nanocrystals.
Qingdao University of Technology researchers report a new silver mesh fabrication technique that improves performance of transparent glass heaters. The TGH is fabricated over four steps, and it balances good transparency with high electrical conductivity.
Researchers at Imperial College London invented a system that requires just 0.2 grams of calcium carbide powder in a combustion chamber to propel a robot clear of the water and into a glide of up to 26 meters.
An international research team in cooperation with Martin Luther University Halle-Wittenberg found at the interface of two oxides that electrons possess special qualities that drastically increase the conversion rate of spin current to charge current.
Researchers used computational techniques to identify 43 previously unknown forms of carbon that are thought to be stable and superhard—including several predicted to be slightly harder than or nearly as hard as diamonds. Each new carbon variety consists of carbon atoms arranged in a distinct pattern in a crystal lattice.
Michigan Technological University researchers developed two models—finite element modeling and analytical microarchitecture modeling— to study the microarchitecture of brittle materials like glass and ceramics.
Researchers from Tokyo Tech University proposed a new approach to build a periodic table for molecules with multiple types of symmetries. Their approach is based on observing the behavior of the valence electrons of atoms that form molecular clusters.