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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.
Quantum Chemistry Part II
out of 5 stars
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.
Field Regulation of Single Molecule Conductivity by a Charged Atom
29 Jul 2005 |
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 is...
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...
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...
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,...
Einstein/Bohr Debate and Quantum Computing
10 May 2005 |
This presentation deals with the Einstein/Bohr Debate and Quantum Computing.
ECE 453 Lecture 31: Broadening
12 Nov 2004 | | Contributor(s):: Supriyo Datta
Reference Chapter 8.1
ECE 453 Lecture 32: Broadening and Lifetime
15 Nov 2004 | | Contributor(s):: Supriyo Datta
ECE 453 Lecture 33: Local Density of States
19 Nov 2004 | | Contributor(s):: Supriyo Datta
Reference Chapter 8.2
ECE 453 Lecture 36: Coherent Transport
01 Dec 2004 | | Contributor(s):: Supriyo Datta
Reference Chapter 9.1
Towards Molecular Electronic Circuitry: Selective Deposition of Metals on Patterned ...
28 Jul 2005 |
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...
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:...
Organic Electronics Part II: Electric Field Modulation
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...
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...
Probing Silicon-Based Molecular Electronics with Scanning Tunneling Microscopy
In recent years, substantial progress has occurred in the field of molecular electronics . 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...
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...
Basic Electronic Properties of DNA
28 Jul 2005 | | Contributor(s):: M. P. Anantram
Measurement of Single Molecule Conductance using STM-Based Break Junctions
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...
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...
Organic Electronics Part I: Chemical Modulation
27 Jul 2005 |
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...