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Many research seminars are available on the nanoHUB. Listed below are a few that discuss new NEMS device possiblities. From among the many tutorial lectures available on the nanoHUB, we list a few that convey new approaches to the development of new kinds of nano-electro-mechanical systems and devices. Traditionally, materials selection has been limited in high-aspect-ratio micromechanical applications, due primarily to the predominance of microfabrication processes and infrastructure dedicated to silicon.

While silicon has proven to be an excellent material for many of these applications, no This presentation is part of a collection of presentations describing the projects, people, and capabilities enhanced by research performed in the Birck Center, and a look at plans for the upcoming year.

Nano Carbon: From ballistic transistors to atomic drumheads. Carbon takes many forms, from precious diamonds to lowly graphite. Surprisingly, it is the latter that is the most prized by nano physicists.

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Graphene, a single layer of graphite, can serve as an impenetrable membrane a single atom thick. Rolled up into a nanometer-diameter cylinder--a carbon Students are introduced to the concepts of level broadening and charging energies in artificial atoms single quantum dots and molecules coupled quantum dots. A tutorial level introduction to the In those structures the behavior of carriers and their interaction with their environment need to be fundamentally Experimental advances in electrically and optically probing individual molecules have provided new insights into the behavior of single quantum objects and their interaction with the nanoenvironments without requiring ensemble average.

Molecular-scale devices are open quantum systems whose We first outline the qualitatively different physics involved in the charging-induced current asymmetries in molecular conductors operating in the strongly coupled weakly interacting self-consistent field SCF and the weakly coupled strongly interacting Coulomb Blockade CB regimes.

The CB One dimensional ferroelectric nanowires have attracted much attention due to its interests in fundamental physics and potential applications in Nanoelectromechanical Systems NEMS , non-volatile ferroelectric memories, and sensors. Domain structure is the most important property of ferroelectric Exploring Physical and Chemical control of molecular conductance: A computational study. The effect of inelastic scattering on quantum electron transport through layered semi-conductor structures is studied numerically using the approach based on the non-equilibrium Green's function formalism of Keldysh, Kadanoff, and Baym.

The Markov assumption is not made, and the energy coordinate The objective of this work is to shed light on electron transport through sub-micron semi-conductor structures, where electronic state quantization, electron-electron interactions and electron-phonon interactions are important.

We concentrate here on the most developed vertical quantum device, This presentation was one of 13 presentations in the one-day forum, "Excellence in Computer Simulation," which brought together a broad set of experts to reflect on the future of computational science and engineering. Novel nanoelectronic devices such as quantum dots, nanowires, and ultra-scaled Plastic Deformation at Micron and Submicron Scales. Most people experiences the way objects plastically deform on a macroscopic scale. From a car crash to the bending of a paper clip plastic deformation occurs in the form of a smooth flow as a response of an applied stress.

But due to the constant shrinking on the dimensions of mechanical devices Engineering at the nanometer scale: Is it a new material or a new device? Molecular electronics faces many problems in practical device implementation, due to difficulties with fabrication and gate-ability. In these devices, molecules act as the main conducting channel. One could imagine alternate device structures where molecules act as quantum dots rather than As the electronics industry continues to develop small, highly functional, mobile devices, new methods of cooling are required to manage the thermal requirements of the not only the chip but the entire system.

Comfortable skin temperatures, small form factors, and limited power consumption are We are aiming at the realization of microsystems and nanosystems with novel and unique functions by integrating functional elements in different domains such as mechanics, electronics, chemistry, optics and biotechnology. We review our recent research on role of interactions in molecular transport junctions.

Most recent theoretical studies of electron transport in single-molecule junctions rely on a Landauer approach, simplified to treat electron-electron interactions at a mean-field level within density functional theory DFT.

While this framework has proven relatively accurate for certain systems, We will discuss several proposed explanations for the switching and negative differential resistance behavior seen in some molecular junctions. It is shown that a proposed polaron model is successful in predicting both hysteresis and NDR behavior, and the model is elaborated with image charge Electronics From the Bottom Up: a view of conductance.

Resistance is one of the first concepts an electrical engineer learns, but things get interesting at the nanoscale.

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Experimentalists have found that no matter how short the resistor is, its resistance cannot drop below a fundamental lower limit. They also found that resistance increases in This 30 minute lecture coversroughly the same material as Lecture 1 of Concepts of Quantum Transport. A Tutorial for Nanoelectronics Simulation Tools.

This learning module introduces nanoHUB users to some of the available simulators. For each simulator, a brief introduction to the simulator is presented, followed by voiced presentations featuring the simulator in A brief introduction to nanoMOS is presented, followed by voiced presentations featuring the simulator in action. Upon completion of this module, users should be able to use this simulator to gain valuable insight into the Acoustic pressure or mechanical force sensing via piezoelectric coupling is closely related to the harvesting of electrical energy from acoustical and mechanical energy sources.

In this talk, mesoscale and microscale piezoelectric transducers for acoustic and vibrational sensing and energy This is part 2 of a video taped set of two one-hour live lectures covering roughly the same material as Lectures of Concepts of Quantum Transport. This is part 1 of a video taped set of two one-hour live lectures covering roughly the same material as Lectures of Concepts of Quantum Transport.

For experimental verification, I use a microdevice that is difficult to simulate with conventional MEMS software. I show that the Electron Emission from Nanoscale Carbon Materials. Prior studies on electron emission show possibly beneficial effects ofnanoscale phenomena on energy-conversion characteristics.


For example,recent work has shown that the electric field around a nanoscale fieldemission device can increase the average energy of emitted electrons. Weconsider here The mechanical properties of carbon nanotubes are studied by using classical molecular dynamics simulations. Especially, the effects of filling, temperature, and functionalization on CNT's tensional and twisting properties are considered in this study.

Orientational Dependence of Friction in Polyethylene.

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The frictional properties of polyethylene polymer are investigated by using classical molecular dynamics simulations. Especially, the sliding orientational effect is considered in this study. The results of polyethylene are also compared to those of polytetrafluoroethylene PTFE. Fouling Mechanisms in Y-shaped Carbon Nanotubes. In the modern pharmaceutical and chemical industries, solutions of extremely high purity are needed.

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Current filtration methods are reaching the limits of their abilities, so new filters must be developed. One possible filter is a Y-shaped carbon nanotube Y-tube. By changing the sizes of the Listen to podcast discussions with scientists and MIT students in the field of Nanomechanics in conjunction with the Spring MIT undergraduate engineering course: 3. Your host: Professor Christine Ortizmore info at Carbon nanotubes CNTs have received much attention in recent years for their extraordinary properties that through careful engineering may be leverage for the development of numerous advantageous applications.

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However, to date, only few CNT based applications exist in the market place. So when Besides discussing several key RFMEMS components switches, varactors, inductors , reconfigurable circuitarchitectures will also be introduced. In addition, reliability and costconsiderations as This is the fifth contribution from the students in the University of Texas at El Paso Molecular Electronics course given in the fall of This introduces nanothermodynamics, the study of small system equilibrium.

How does the resistance of a conductor change as we shrink its length all the way down to a few atoms? This is a question that Reactive Empirical Bond-Order REBO potential is a many-body expression optimized for modeling covalently bonded materials, such as carbon and silicon, in large-scale atomistic simulations. Phonons are the principal carriers of thermal energy in semiconductors and insulators, and they serve a vital role in dissipating heat produced by scattered electrons in semiconductor devices.

Despite the importance of phonons, rigorous understanding and inclusion of phonon dynamics in The use of self-assembled monolayers SAM on semiconductors creates a basis for the design and creation of bioelectronics, such as biosensors. The interface between the surface and an organic monolayer can change significant electrical and physiochemical properties of a biological device Quantum Transport: Atom to Transistor Spring Spring Please Note: A newer version of this course is now available and we would greatly appreciate your feedback regarding the new format and contents.

Course Information Website The development of "nanotechnology" has made it possible to engineer materials and devices Nanotubes and Nanowires: One-dimensional Materials. What is a nanowire? What is a nanotube? Why are they interesting and what are their potential applications? How are they made? This presentation is intended to begin to answer these questions while introducing some fundamental concepts such as wave-particle duality, quantum confinement, the What is "Nanofluidics"?

Micro- and nanoscaled fluid mechanics are rapidly emerging as important supporting fields in biomedical technology, nanotechnology, etc. Despite the common use of these terms in the literature, the fluid behavior at these small Compute the strain effects on the thermal properties of bulk crystalline silicon.

Compute the charge density distribution and potential variation inside a MOS structure by using a coarse-grained tight binding model. In this presentation, the molecular dynamics MD simulation will be introduced first.

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The applications of MD simulation, the procedure of MD simulation and some speed-up methods in MD simulation will be talked. Then the bond order potentials which are capable to predict bond breaking and new There are several fundamental needs to consider when transitioning nanotechnology discovery into a business and, ultimately, the marketplace. These needs include steady cash flow, market focus, the right pool of skills, correct timing, and adequate funding.