女生小视频

Molecular electricians now have a roll of wire in their toolbox, following
the discovery of a molecule that conducts electricity well at small scales. The
鈥渨ire鈥�, made of an organic molecule called oligophenylenevinylene, could connect
components in molecular electronic circuits (Science, vol 291, p 1519).
女生小视频s at Brookhaven National Lab in New York and Stanford University in
California found that electrons 鈥渢unnel鈥� through the material in less than 20
picoseconds over lengths of up to 3 nanometres.