Not exact matches
«Gerardo Algara - Siller and Ossi Lehtinen carried out the experiment, and imaged the unknown ice structure
between graphene sheets,» said Ulm University professor Ute Kaiser, who led the German side
of the collaboration.
Two examples:
graphene — single - atom - thick
sheets of carbon atoms — has unique mechanical, electrical, and optical properties; and two - dimensional electron gases (2DEG)-- planar collections
of electrons supported at the interface
between certain semiconductors such as gallium arsenide — allow the observation
of such emergent behaviors as the quantum Hall effect and the spin Hall effect.
Scientists formed these crystals — which occur at room temperature — by squeezing tiny amounts
of water
between two
sheets of graphene, planes
of carbon a single atom thick.
In the journal Optical Materials Express, from The Optical Society (OSA), the researchers reported that
graphene oxide
sheets treated with brief exposure to bright light in the form
of a camera flash exhibited reversible bending at angles from zero to 85 degrees in response to switching the relative humidity
between 33 and 86 percent.
They demonstrated that a
sheet of graphene, a lattice
of carbon atoms one layer thick, could be used to differentiate
between bases in a strand
of DNA by poking a tiny hole in the
sheet and threading DNA through it.
The top row shows the build - up
of bacteria (green) on a plain
sheet of polyimide (left), graphite (middle), and laser - induced
graphene (right), while the bottom shows the clear split
between plain polyimide and electrified LIG (Credit: Arnusch Lab / Ben - Gurion University
of the Negev)
Calculation
of Phonon transport through molecular junctions
between graphene sheets via Green's functions technique through DFTB
Dresselhaus studied intercalated two - dimensional
graphene sheets and provided important insights into the properties
of not only 2D
graphene, but also
of the rich interactions
between graphene and the surrounding materials.