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  1. Numerical Aspects of NEGF: The Recursive Green Function Algorithm

    14 Jun 2004 | Online Presentations | Contributor(s): Gerhard Klimeck

    Numerical Aspects of NEGF: The Recursive Green Function Algorithm

  2. Metal Oxide Nanowires: Synthesis, Characterization and Device Applications

    07 Mar 2006 | Online Presentations | Contributor(s): Jia Grace Lu

    Various metal oxide nanowires, such as ZnO, SnO2, Fe2O3, In2O3 and Ga2O3, have been synthesized by chemical vapor deposition method. Their structures and properties are characterized by TEM, SEM, XRD, AFM, photoluminescence, photoconductance, scanning surface potential microscopy, and electrical...

  3. Understanding Phonon Dynamics via 1D Atomic Chains

    04 Apr 2006 | Online Presentations | 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...

  4. Piezoelectric Transducers: Strain Sensing and Energy Harvesting (and Frequency Tuning)

    15 Jun 2007 | Online Presentations | 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...

  5. Solid-State Lighting: An Opportunity for Nanotechnologists to Address the Energy Challenge

    25 Apr 2007 | Online Presentations | Contributor(s): Timothy D. Sands

    More than one-fifth of the electrical power consumed in the U.S. is used for general illumination. Much of this energy is wasted to heat filaments in incandescent lamps, a century-old technology with an efficiency of about 5%. Fluorescent lighting is more efficient, but problems of color...

  6. NCN Nano-Devices for Medicine and Biology: Tutorials

    19 Jun 2008 | Series

    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 devices for applications in medicine and biology.

  7. ECE 606 Lecture 4: Solution of Schrodinger Equation

    04 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline:Time-independent Schrodinger EquationAnalytical solution of toy problemsBound vs. tunneling statesConclusionsAdditional Notes: Numerical solution of Schrodinger Equation

  8. ECE 606 Lecture 6: Energy Bands (continued)

    04 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline:Properties of electronic bandsE-k diagram and constant energy surfacesConclusions

  9. ECE 606 Lecture 7: Energy Bands in Real Crystals

    04 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline:E-k diagram/constant energy surfaces in 3D solidsCharacterization of E-k diagram: BandgapCharacterization of E-k diagram: Effective MassConclusions

  10. ECE 606 Lecture 9: Fermi-Dirac Statistics

    04 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline:Rules of filling electronic statesDerivation of Fermi-Dirac Statistics: three techniquesIntrinsic carrier concentrationConclusion

  11. ECE 606 Lecture 10: Additional Information

    16 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline:Potential, field, and chargeE-k diagram vs. band-diagramBasic concepts of donors and acceptorsConclusion

  12. ECE 606 Lecture 11: Equilibrium Statistics

    16 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline:Law of mass-action & intrinsic concentration Statistics of donors and acceptor levelsConclusion

  13. ECE 606 Lecture 13: Recombination-Generation

    16 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline:Non-equilibrium systemsRecombination generation eventsSteady-state and transient responseDerivation of R-G formulaConclusion

  14. ECE 606 Lecture 16: Carrier Transport

    23 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

  15. ECE 606 Lecture 17: Hall Effect, Diffusion

    24 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Outline:Measurement of mobilityHall Effect for determining carrier concentrationPhysics of diffusionConclusions

  16. ECE 606 Lecture 20: Electrostatics of P-N Junction Diodes

    11 Mar 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

  17. ECE 606 Lecture 21: P-N Diode I-V Characteristics

    11 Mar 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

  18. ECE 606 Lecture 13a: Fermi Level Differences for Metals and Semiconductors

    16 Feb 2009 | Online Presentations | Contributor(s): Muhammad A. Alam

    Short chalkboard lecture on Fermi level and band diagram differences for metals and semiconductors.

  19. PN Junction Lab Demonstration: Asymmetric PN Junctions

    11 Jun 2009 | Animations | Contributor(s): Gerhard Klimeck, Benjamin P Haley

    This video shows the simulation and analysis of a several PN junctions using PN Junction Lab, which is powered by PADRE. Several powerful analytic features of this tool are demonstrated.

  20. 2009 NCN@Purdue Summer School: Electronics from the Bottom Up

    22 Sep 2009 | Workshops | Contributor(s): Supriyo Datta, Mark Lundstrom, Muhammad A. Alam, Joerg Appenzeller

    The school will consist of two lectures in the morning on the Nanostructured Electronic Devices: Percolation and Reliability and an afternoon lecture on Graphene Physics and Devices. A hands on laboratory session will be available in the afternoons.

nanoHUB.org, a resource for nanoscience and nanotechnology, is supported by the National Science Foundation and other funding agencies. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.