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In 1959, physicist Richard Feynman presented an amazing talk entitled There's Plenty of Room at the Bottom, in which he proposed making very small circuits out of molecules. More than forty years later, people are starting to realize his vision. Thanks to Scanning Tunneling Microscope (STM) probes and "self-assembly" fabrication techniques, it is now possible to connect electrodes to a molecule and measure its conductance. In 2004, Mark Hersam et al. reported the first experimental measurement of a molecular resonant tunneling device on silicon. This new field of Molecular Electronics may someday provide the means to miniaturize circuits beyond the limits of silicon, keeping Moore's Law in force for many years to come.

Learn more about molecular electronics from the resources on this site, listed below. More information on Molecular electronics can be found here.

Resources (141-144 of 144)

  1. Contacting Molecules - Chemistry in Molecular Electronics

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    12 Apr 2004 | | Contributor(s):: Ilona Kretzschmar

    The study of the basic electron transport mechanism through molecular systems has been made accessible by fabrication techniques that create metallic contacts to a small number of organic molecules. In my talk, I will discuss some of the groundbreaking discoveries such as the measurement of the...

  2. Inelastic Effects in Molecular Conduction

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    12 Apr 2004 | | Contributor(s):: Abraham Nitzan

    Molecular electron transfer, as treated by the Marcus theory, strongly depends on nuclear motion as a way to achieve critical configurations in which charge rearrangement is possible. The electron tunneling process itself is assumed to occur in a static nuclear environment. In the application of...

  3. Electrical Conduction through Molecules

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    08 Jul 2003 | | Contributor(s):: Ferdows Zahid, Magnus Paulsson, Supriyo Datta

    In recent years, several experimental groups have reported measurements of the current-voltage (I-V) characteristics of individual or small numbers of molecules. Even three-terminal measurements showing evidence of transistor action has been reported using carbon nanotubes as well as...

  4. Resistance of a Molecule

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    29 Apr 2003 | | Contributor(s):: Magnus Paulsson, Ferdows Zahid, Supriyo Datta

    In recent years, several experimental groups have reported measurements of the current-voltage (I-V) characteristics of individual or small numbers of molecules. Even three-terminal measurements showing evidence of transistor action has been reported using carbon nanotubes [1, 2] as well as...