Tags: energy conversion

All Categories (21-32 of 32)

  1. Nanoscale Opto Thermo Electric Energy Conversion Devices

    28 May 2008 | | Contributor(s):: Ali Shakouri

    We review solid-state devices that allow direct conversion of heat into electricity. We describe fundamental and practical limits of conventional thermoelectric materials. Novel metal-semiconductor nanocomposites are developed where the heat and charge transport are modified at the atomic level....

  2. Olalekan Sunday Adewuyi

    I am currently a PhD Student in Mechanical Engineering at the Howard University. My area of research is in nanoscale thermal transport

    https://nanohub.org/members/55350

  3. 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...

  4. Ramin Banan Sadeghian

    Ramin Banan Sadeghian received the B.Sc. and M.Sc. degrees both in electronic engineering from Sharif University of Technology (Tehran, 1998) and K.N. Toosi University of Technology (Tehran,...

    https://nanohub.org/members/59162

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

    25 Apr 2007 |

    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. The Energy Problem: What the Helios Project Can Do About It

    13 Jun 2007 | | Contributor(s):: Steven Chu

    Nobel Prize winner Steven Chu talks about the Helios Project for the 2007 'Science at the Theater' series at Berkeley Repertory Theater in Berkeley, California. He proposes an aggressive research program to transform the existing and future energy systems of the world away from technologies that...

  7. The Potential of Nanostructured Materials to Address the Challenge of a Sustainable Energy Resource

    14 Feb 2008 | | Contributor(s):: Mildred S. Dresselhaus

    An overview is presented on the grand challenges to the science community in the next few decades in meeting global energy needs for the 21st century. Major advances in our present capabilities will be needed for energy production and storage and for its conversion from one form to another....

  8. Thermoelectric Energy Conversion: Transport, Materials, and Systems

    05 Dec 2012 | | Contributor(s):: Gang Chen

    his talk will start with an introduction to thermoelectric effects, and move on to discuss ways to understand and engineer electron and phonon transport in thermoelectric materials to improve the figure of merit. On phonon transport, thermal conductivity spectroscopy and coherent heat conduction...

  9. Thermoelectric Power Factor Calculator for Superlattices

    18 Oct 2008 | | Contributor(s):: Terence Musho, Greg Walker

    Quantum Simulation of the Seebeck Coefficient and Electrical Conductivity in 1D Superlattice Structures using Non-Equilibrium Green's Functions

  10. Thin-Film and Multi-Element Thermoelectric Devices Simulator

    17 Jul 2012 | | Contributor(s):: Je-Hyeong Bahk, Megan Youngs, Zach Schaffter, Kazuaki Yazawa, Ali Shakouri

    Tool to simulate both micro-scale thin-film thermoelectric devices and large-scale multi-element thermoelectric modules for cooling and power generation

  11. Transformative Power Semiconductor Technologies to Impact 21st Century Energy Economy, and Space and Defense Electronics

    19 Jul 2010 | | Contributor(s):: Krishna Shenai

    This talk will focus on advanced power semiconductor materials, devices, circuits and systems that are needed in order to address this daunting challenge. Specifically we will discuss emerging silicon and wide bandgap materials and power devices, heterogeneous chip-scale power integration,...

  12. Vacuum Nanosystemsfor Energy Conversion

    30 Jan 2013 | | Contributor(s):: Roger T. Howe

    Micro and nano-fabricated sensors (e.g., accelerometers and gyroscopes) and actuators (e.g., light valve chips for projection and cell-phone displays) have become commonplace in recent years. Some of these devices must operate in a hermetically sealed, lowpressure ambient, a need that motivated...