Tags: molecular electronics

Description

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.

Online Presentations (41-60 of 114)

  1. Quantum Chemistry Part II

    08 Jul 2004 | | Contributor(s):: George C. Schatz

    This tutorial will provide an overview of electronic structure calculations from achemist's perspective. This will include a review of the basic electronic structuretheories.

  2. Field Regulation of Single Molecule Conductivity by a Charged Atom

    29 Jul 2005 | | Contributor(s)::

    A new concept for a single molecule transistor is demonstrated. A single chargeable atom adjacent to a molecule shifts molecular energy levels into alignment with electrode levels, thereby gating current through the molecule. Seemingly paradoxically, the silicon substrate to which the molecule...

  3. An Electrical Engineering Perspective on Molecular Electronics

    26 Oct 2005 | | Contributor(s):: Mark Lundstrom

    After forty years of advances in integrated circuit technology, microelectronics is undergoing a transformation to nanoelectronics. Modern day MOSFETs now have channel lengths that are less than 50 nm long, and billion transistor logic chips have arrived. Moore's Law continues, but the end of...

  4. Simple Theory of the Ballistic MOSFET

    11 Oct 2005 | | Contributor(s):: Mark Lundstrom

    Silicon nanoelectronics has become silicon nanoelectronics, but we still analyze, design, and think about MOSFETs in more or less in the same way that we did 30 years ago. In this talk, I will describe a simple analysis of the ballistic MOSFET. No MOSFET is truly ballistic, but approaching this...

  5. Semiconductor Interfaces at the Nanoscale

    17 Oct 2005 | | Contributor(s):: David Janes

    The trend in downscaling of electronic devices and the need to add functionalities such as sensing and nonvolatile memory to existing circuitry dictate that new approaches be developed for device structures and fabrication technologies. Various device technologies are being investigated,...

  6. Einstein/Bohr Debate and Quantum Computing

    10 May 2005 | | Contributor(s)::

    This presentation deals with the Einstein/Bohr Debate and Quantum Computing.

  7. ECE 453 Lecture 31: Broadening

    12 Nov 2004 | | Contributor(s):: Supriyo Datta

    Reference Chapter 8.1

  8. ECE 453 Lecture 32: Broadening and Lifetime

    15 Nov 2004 | | Contributor(s):: Supriyo Datta

    Reference Chapter 8.1

  9. ECE 453 Lecture 33: Local Density of States

    19 Nov 2004 | | Contributor(s):: Supriyo Datta

    Reference Chapter 8.2

  10. ECE 453 Lecture 36: Coherent Transport

    01 Dec 2004 | | Contributor(s):: Supriyo Datta

    Reference Chapter 9.1

  11. Towards Molecular Electronic Circuitry: Selective Deposition of Metals on Patterned ...

    28 Jul 2005 | | Contributor(s)::

    We have developed a robust method by which to construct complex two- and three- dimensional structures based on controlling interfacial chemistry. This work has important applications in molecular/organic electronics, sensing, and other technologies. Our method is extensible to many different...

  12. Top-Metal/Molecular Monolayer Interactions and Final Device Performance

    28 Jul 2005 | | Contributor(s):: Curt A Richter

    The top-metal/molecular-monolayer interface is of critical importance in the formation of molecular electronic (ME) devices and test structures. I will discuss two experimental studies of ME devices in which the final device performance can be attributed to top-metal/molecule interactions:...

  13. Organic Electronics Part II: Electric Field Modulation

    28 Jul 2005 | | Contributor(s)::

    A solid state platform has been designed and fabricated that allows characterization of candidate organic semiconductor materials used in organic field-effect transistors (OFET). A systematic experimental protocol has been outlined that allows the separation of contribution of contact resistance...

  14. Synthetic and Processing Strategies to New Molecular and Polymeric...

    28 Jul 2005 | | Contributor(s):: ,

    Recent achievements in the design and synthesis of new arene/heteroaromatic oligomers/molecules functionalized with a variety of phenacyl, alkylcarbonyl, and perfluoroalkylcarbonyl will be presented. These organic semiconductors exhibit low-lying LUMOs allowing efficient electron...

  15. Probing Silicon-Based Molecular Electronics with Scanning Tunneling Microscopy

    29 Jul 2005 | | Contributor(s)::

    In recent years, substantial progress has occurred in the field of molecular electronics [1]. In this paper, charge transport through molecule-semiconductor junctions is probed with ultra-high vacuum (UHV) scanning tunneling microscopy (STM). The presence of the semiconductor band gap enables...

  16. Electrical Conduction through dsDNA-Molecule with Nanoscale Break Junctions

    28 Jul 2005 | | Contributor(s):: Ajit Kumar Mahapatro, Kyung Jae Jeong, Sugata Bhattacharya, Gil Lee, David Janes

    Measuring the electrical conductivity through a specific strand of DNA is of great interest to the nano-science and engineering community. This work focuses on the electrical conduction through 15 base-pair, double helix oligo-nucleotides with various sequences. The current-voltage...

  17. Basic Electronic Properties of DNA

    28 Jul 2005 | | Contributor(s):: M. P. Anantram

  18. Measurement of Single Molecule Conductance using STM-Based Break Junctions

    28 Jul 2005 | | Contributor(s)::

    We have measured single molecule conductance using a combined STM- and conducting AFM-based break junction method. The method works in aqueous solutions, which is suitable for biologically relevant molecules such as DNA and peptides, and also allows us to control electron transport through redox...

  19. DNA Charge Motion: Regimes and Behaviors

    28 Jul 2005 | | Contributor(s):: Mark Ratner

    Because DNA is a quasi-one-dimensional species, and because each base is a pi-type chromphore, it was long ago suggested that DNA could conduct electricity. This has become a widely investigated area, and remains of interest for fundamental science and for applications. We will discuss a very...

  20. Organic Electronics Part I: Chemical Modulation

    27 Jul 2005 | | Contributor(s)::

    Organic semiconductors (OS) have been in the center of attention in at least two areas: in chemical ,sensors and in molecular electronics. Although the chemistry and physics governing them is the same their performance characteristics are apparently measured on different scales. Electrochemical...