Word: acceptor
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Dates: during 1970-1979
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...cathode in ordinary vacuum tubes, one end of the molecular rectifier would act as a donor of electrons because it would be made out of a molecule that had a lower binding energy. The other end, carrying a higher binding energy, would serve as an anode, or electron acceptor. Thus, if an external alternating voltage were applied, the large molecule would act as a rectifier. It would allow electrons to flow in only one direction, from donor end to acceptor...
Achieving the precise spacing between donor and acceptor points to avoid the molecular version of a short circuit may be difficult, Aviram and Ratner admit. But, adds IBM Physicist Philip Seiden, chemists are already skilled at manipulating molecular structure and might be able to build molecular devices that will some day perform all the chores of today's tiny chips...
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