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Nanotechnology-Enabled Direct Energy Conversion
25 Mar 2005 | | Contributor(s):: Gang Chen
Energy transport in nanostructures differs significantly from macrostructures because of classical and quantum size effects on energy carriers such as on phonons, electrons, photons, and molecules. Nanoscale effects can be tailored to develop more efficient direct energy conversion technologies...
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Nanotribology, Nanomechanics and Materials Characterization Studies
29 Mar 2009 | | Contributor(s):: Bharat Bhushan
Fundamental nanotribological studies provide insight to molecular origins of interfacial phenomena including adhesion, friction, wear and lubrication. Friction and wear of lightly loaded micro/nano components are highly dependent on the surface interactions (few atomic layers). Nanotribological...
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Nanotubes and Nanowires: One-dimensional Materials
17 Jul 2006 | | Contributor(s):: Timothy D. Sands
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...
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NCN NEMS: Research Seminars
19 Jun 2008 |
Many research seminars are available on the nanoHUB. Listed below are a few that discuss new NEMS device possiblities.
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NCN NEMS: Simulation Tools for Education and Research
19 Jun 2008 |
Many simulation tools are available on the nanoHUB. The tools have been well-tested and here include supporting materials so that they can be effectively used for education or...
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NCN NEMS: Tutorials
19 Jun 2008 |
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.
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NEMS Workshop
08 Apr 2005 |
The Network for Computational Nanotechnology (NCN) held a workshop entitled Challenges and Opportunities in the Development of Nanoelectromechanical Systems on April, 8, 2005. The workshop was held at the Entrepreneurship Center at Purdue University and featured presentations and discussion on...
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Organic Electronics Part I: Chemical Modulation
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...
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Orientational Dependence of Friction in Polyethylene
16 Apr 2007 | | Contributor(s):: SeongJun Heo
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).
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Peanuts vs. Pyramids: Two Perspectives on MEMS
23 Nov 2009 | | Contributor(s):: Stephen D. Senturia
MEMS, the acronym for Micro-electromechanical Systems, also known simply as “Micro-systems,” come in two main types: commodity products (the peanuts) and MEMS-enabled products (the pyramids, or, more correctly, the inverted pyramids). The economics of scale greatly affect how these two classes of...
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Piezoelectric Transducers: Strain Sensing and Energy Harvesting (and Frequency Tuning)
15 Jun 2007 | | Contributor(s):: Toshikazu Nishida
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...
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Plastic Deformation at Micron and Submicron Scales
28 Nov 2007 | | Contributor(s):: Marisol Koslowski
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...
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PRISM Seminar Series
05 Nov 2008 | | Contributor(s):: Jayathi Murthy, Alejandro Strachan
Welcome to the PRISM Seminar Series.PRIMS: NNSA Center for Prediction of Reliability, Integrity and Survivability of Microsystems, is a university center funded by the Department of Energy's National Nuclear Security Administration (NNSA) under their Advanced Simulation and Computing (ASC)...
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Purdue Microelectronics and Nanotechnology Overview
09 Sep 2021 | | Contributor(s):: Samantha Nelson, Muhammad A. Alam, Joerg Appenzeller, Zhihong Chen, Supriyo Datta, David Janes, Gerhard Klimeck, Dana Weinstein, Pramey Upadhyaya, Peide "Peter" Ye
In today’s modern world, microelectronics has touched every aspect of our lives. None of us can imagine or live in a world without personal computers, smart phones, and probably very soon autonomous cars. To continue its expansion and go beyond the traditional semiconductor technologies,...
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Q-factor calculator with Uncertainty Quantification
06 May 2009 | | Contributor(s):: Sruti Chigullapalli, Xiaohui Guo, Alina Alexeenko
Calculates squeeze-film damping Q-factors of microcantilevers for arbitrary ambient pressures
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Quantum Electromechanical Systems: Are we there yet?
05 Feb 2004 | | Contributor(s):: Andrew Cleland
Electrons moving in a conductor can transfer momentum to the lattice via collisions with impurities and boundaries, giving rise to a fluctuating mechanical stress tensor. Driving electrons out of equilibrium by applying the voltage across the conductor, one may control this electromechanical noise.
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REBO
24 Jul 2006 | | Contributor(s):: Wen-Dung Hsu, SeongJun Heo, jing xu, Susan Sinnott
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
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REBO Nanofluidics Exercise
10 May 2006 | | Contributor(s):: Susan Sinnott, Hetal Patel
Nanofluidics exercise showing the variation of energy and position of methane and butane molecules flowing through an opened carbon nanotube as the system temperature and the length of the nanotube are varied.
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RF MEMS: Passive Components and Architectures
02 Jan 2007 | | Contributor(s):: Dimitrios Peroulis
This seminar is an introduction to the MEMS technology as itapplies to RF and Microwave systems. Besides discussing several key RFMEMS components (switches, varactors, inductors), reconfigurable circuitarchitectures will also be introduced. In addition, reliability and costconsiderations as...
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RF Solid-State Vibrating Transistors
14 Feb 2014 | | Contributor(s):: Dana Weinstein
In this talk, I will discuss the Resonant Body Transistor (RBT), which can be integrated into a standard CMOS process. The first hybrid RF MEMS-CMOS resonators in Si at the transistor level of IBM’s SOI CMOS process, without any post-processing or packaging will be described. ...