Thermal Energy at the Nanoscale
Papers | 31 Jan 2022 | Contributor(s): Timothy S Fisher
These lecture notes provide a detailed treatment of the thermal energy storage and transport by conduction in natural and fabricated structures.
Process Optimization of Graphene Growth
Tools | 24 Jul 2017 | Contributor(s): Atharva Hans, Ilias Bilionis, Timothy S Fisher, Majed Abdullah Alrefae, Nimish M Awalgaonkar, Piyush Pandita
Optimizes the growth of graphene in a plasma chemical vapor deposition (CVD) system.
Practice Your Scales! Thermal and Energy Nanomaterials for Fast Processes
Online Presentations | 06 Aug 2016 | Contributor(s): Timothy S Fisher
1D Moving Fin Model
Tools | 19 Jul 2016 | Contributor(s): Yudong Chen, Majed Abdullah Alrefae, Timothy S Fisher
Simulate 1-D moving fin model for CVD roll-to-roll plasma system
Some Lessons on Entrepreneurship in Nanotechnology (and, Mechanical Engineers do 'nano', too)
Online Presentations | 12 Feb 2016 | Contributor(s): Timothy S Fisher
Professor Tim Fisher will talk about his brief excursion into starting (and stopping) a company, with a focus on lessons learned that are related to education and academic research. He will also try to convince a likely skeptical audience that mechanical engineers have something valuable to...
Multi-Format Roll-to-Roll Graphene Nanomanufacturing
Online Presentations | 20 Jul 2015 | Contributor(s): Timothy S Fisher
Combined Microstructure and Heat Transfer Modeling of Carbon Nanotube Thermal Interface Materials
Tools | 22 Jul 2014 | Contributor(s): Yide Wang, Sridhar Sadasivam, Timothy S Fisher
Simulate mechanical and thermal performance of CNT thermal interface materials.
Electrical Thin Double Layer Simulation and Micro-electrochemical Supercapacitor Cooling
Presentation Materials | 25 Mar 2014 | Contributor(s): Kaitlyn Fisher, Guoping Xiong, Timothy S Fisher
Forum on the Future of Electronics: Panel Discussion
Presentation Materials | 11 Oct 2013 | Contributor(s): Mark Lundstrom, Supriyo Datta, Gerhard Klimeck, Muhammad Alam, Timothy S Fisher
Presentation slides from a panel discussion on the Future of Electronics.
nanoHUB-U: Thermal Energy at the Nanoscale CDFs
Downloads | 27 Sep 2013 | Contributor(s): Timothy S Fisher
Jamming of Soft Frictionless Spheres
Tools | 23 Aug 2012 | Contributor(s): Siew La Pang, Ishan Srivastava, Timothy S Fisher
Predicts the jammed microstructure of an ensemble of spheres of user-defined number and size distribution
Isotropic random fracture model for metal hydride powder
Downloads | 03 Oct 2011 | Contributor(s): Kyle Christopher Smith, Timothy S Fisher
Metal hydrides can be used to store hydrogen on-board fuel cell vehicles, but the process of fracture which such materials undergo when exposed to hydrogen makes them poor conductors of the heat generated during hydriding. This fracture process creates particles having irregular faceted shapes...
hotSPICE
Tools | 01 Sep 2011 | Contributor(s): Andrew Schwinke, Timothy S Fisher, Greg Walker
Linear thermal circuit simulation tool for both steady-state and transient problems
Thermal Transport Across Interfaces
Courses | 19 Aug 2011 | Contributor(s): Timothy S Fisher
These lectures provide a theoretical development of the transport of thermal energy by conduction in nanomaterials, in which material interfaces typically dominate transport. The physical nature of energy transport by two carriers: electrons and phonons--will be explored.
Tutorial 2: Thermal Transport Across Interfaces - Electrons
Online Presentations | 15 Aug 2011 | Contributor(s): Timothy S Fisher
Outline:Thermal boundary resistanceElectronic transportReal interfaces and measurementsCarbon nanotube interfaces
Tutorial 1: Thermal Transport Across Interfaces - Phonons
Online Presentations | 30 Jul 2011 | Contributor(s): Timothy S Fisher
Outline:Lattice vibrations and phononsThe vibrating stringInterfaces between dissimilar strings: acousticmismatchDiscrete masses and the vibrational eigenspectrumGeneral thermal transport theory
Additional Tutorials on Selected Topics in Nanotechnology
Workshops | 23 Mar 2011 | Contributor(s): Gerhard Klimeck, Umesh V. Waghmare, Timothy S Fisher, N. S. Vidhyadhiraja
Select tutorials in nanotechnology, a part of the 2010 NCN@Purdue Summer School: Electronics from the Bottom Up.
Tutorial 2: A Bottom-Up View of Heat Transfer in Nanomaterials
Online Presentations | 23 Mar 2011 | Contributor(s): Timothy S Fisher
This lecture provides a theoretical development of the transport of thermal energy by conduction in nanomaterials. The physical nature of energy transport by two carriers—electrons and phonons--will be explored from basic principles using a common Landauer framework. Issues including the quantum...
Thermoelectric Generator Module with Convective Heat Transfer
Tools | 14 Jun 2010 | Contributor(s): Yuefeng Wang, Guoheng Chen, Michael McLennan, Timothy S Fisher,
Electrical power density and efficiency of a thermoelectric generator with convective heat transfer on hot side and cold side is calculated.
Report of the Joint India-US Workshop on Scalable Nanomaterials for Enhanced Energy Transport, Conversion, and Efficiency
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Papers | 30 Sep 2008 | Contributor(s): Timothy S Fisher
A Joint Indo-US Workshop on "Scalable Nanomaterials for Enhanced Energy Transport, Conversion and Efficiency"was organized from August 19 to 21, 2008 at Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) and the John F. Welch Technology Centre campus of General Electric in...
Heat Transfer across Solid Contacts Enhanced with Nanomaterials
Online Presentations | 11 Feb 2008 | Contributor(s): Timothy S Fisher
This presentation will describe thermal transport processes at solid-solid material interfaces. An overview of applications in the electronics industry will serve to motivate the subject, and then the basic diffusive constriction theory will be developed. The addition of carbon nanotube arrays to...
Electron Emission from Nanoscale Carbon Materials
Online Presentations | 15 May 2007 | Contributor(s): Timothy S Fisher
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...
BNC Annual Research Symposium: Nanoscale Energy Conversion
Online Presentations | 23 Apr 2007 | Contributor(s): Timothy S Fisher
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.
Atomistic Green's Function Method 1-D Atomic Chain Simulation
Tools | 16 Apr 2007 | Contributor(s): Zhen Huang, Wei Zhang, Timothy S Fisher, Sridhar Sadasivam
Calculation of Thermal Conductance of an Atomic Chain
Understanding Phonon Dynamics via 1D Atomic Chains
Online Presentations | 04 Apr 2006 | Contributor(s): Timothy S Fisher
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...