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.

All Categories (81-100 of 175)

  1. Atomic Force Microscopy

    Online Presentations | 01 Dec 2005 | Contributor(s):: Arvind Raman

    Atomic Force Microscopy (AFM) is an indispensible tool in nano science for the fabrication, metrology, manipulation, and property characterization of nanostructures. This tutorial reviews some of the physics of the interaction forces between the nanoscale tip and sample, the dynamics of the...

  2. Quantum Chemistry Part II

    Online Presentations | 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.

  3. Notes on the Ballistic MOSFET

    Papers | 08 Oct 2005 | Contributor(s):: Mark Lundstrom

    When analyzing semiconductor devices, the traditional approach is to assume that carriers scatter frequently from ionized impurities, phonons, surface roughness, etc. so that the average distance between scattering events (the so-called mean-free-path, λ) is much shorter than the device. When...

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

    Online Presentations | 29 Jul 2005 | Contributor(s):: Robert Wolkow

    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...

  5. An Electrical Engineering Perspective on Molecular Electronics

    Online Presentations | 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...

  6. Simple Theory of the Ballistic MOSFET

    Online Presentations | 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...

  7. Einstein/Bohr Debate and Quantum Computing

    Online Presentations | 10 May 2005 | Contributor(s):: Karl Hess

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

  8. Semiconductor Interfaces at the Nanoscale

    Online Presentations | 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,...

  9. ECE 453 Lecture 31: Broadening

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

    Reference Chapter 8.1

  10. ECE 453 Lecture 32: Broadening and Lifetime

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

    Reference Chapter 8.1

  11. ECE 453 Lecture 33: Local Density of States

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

    Reference Chapter 8.2

  12. ECE 453 Lecture 36: Coherent Transport

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

    Reference Chapter 9.1

  13. PN Junction Theory and Modeling

    Series | 14 Sep 2005 | Contributor(s):: Dragica Vasileska

    This set of lecture notes is intended to help students learn the basics of PN junction theory and modeling.

  14. Basic Electronic Properties of DNA

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

  15. DNA Charge Motion: Regimes and Behaviors

    Online Presentations | 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...

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

    Online Presentations | 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. Measurement of Single Molecule Conductance using STM-Based Break Junctions

    Online Presentations | 28 Jul 2005 | Contributor(s):: Nongjian Tao

    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...

  18. Organic Electronics Part I: Chemical Modulation

    Online Presentations | 27 Jul 2005 | Contributor(s):: Jiri Janata

    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...

  19. Organic Electronics Part II: Electric Field Modulation

    Online Presentations | 28 Jul 2005 | Contributor(s):: Jiri Janata

    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...

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

    Online Presentations | 29 Jul 2005 | Contributor(s):: Mark Hersam

    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 new...