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Nanogenerator Converts Tiny Movements to Electric Current

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ATLANTA, April 6, 2007 -- A prototype nanometer-scale generator -- an array of tiny filaments that converts the smallest motions into electrical current -- could free nanomachines from the bulk of batteries by harvesting mechanical energy from such environmental sources as ultrasonic waves, mechanical vibration or even blood flow.Georgia Institute of Technology researcher Zhong Lin Wang holds a prototype nanogenerator that was fabricated using an array of zinc oxide nanowires. Wang is a Regents Professor in the Georgia Tech School of Materials Science and Engineering. (Georgia Tech Photo: Gary Meek) The nanowires are...Read full article

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    Published: April 2007
    Glossary
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    sensor
    1. A generic term for detector. 2. A complete optical/mechanical/electronic system that contains some form of radiation detector.
    AFMBasic SciencebiomedicalBiophotonicsdefenseGeorgia TechMicroscopynanonanodevicenanogeneratornanotubesnanowiresNews & FeaturesphotonicspiezoelectricSchottkysemiconductingsensorSensors & DetectorsultrasonicwiresZhong Lin Wangzinc oxide

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