单词	graphene
释义	graphene /ˈɡrafiːn / noun [mass noun] A form of carbon consisting of planar sheets which are one atom thick, with the atoms arranged in a honeycomb-shaped lattice.Graphite has a crystal structure consisting of many one-atom-thick carbon sheets known as graphene.... Carbon nanotubes are rolled up sheets of graphene just a few nanometres in diameter that can behave as either metals or semiconductors depending on their atomic arrangement. The electronic properties of a carbon nanotube, for example, depend on its chirality, which, in turn, depends on the direction in which the graphene sheet has been rolled up to form the nanotube. Origin 1980s: blend of graphite and -ene (sense 2).
随便看	dwell time DWEM DWF DWI dwindle DWM DWP dwt D & X DX Dy dyad dyadic Dyak dyarchy dybbuk dye dyeable dyed in the wool dye laser dyeline dyer dyer's greenweed dyer's oak dyer's rocket

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