Nanowire devices and systems, light-emitting nanowires, and methods of precisely positioning nanoparticles
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United States of America Patent
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Dec 16, 2008
Grant Date -
Nov 1, 2007
app pub date -
Apr 28, 2006
filing date -
Apr 28, 2006
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Abstract
A radiation-emitting device includes a nanowire that is structurally and electrically coupled to a first electrode and a second electrode. The nanowire includes a double-heterostructure semiconductor device configured to emit electromagnetic radiation when a voltage is applied between the electrodes. A device includes a nanowire having an active longitudinal segment selectively disposed at a predetermined location within a resonant cavity that is configured to resonate at least one wavelength of electromagnetic radiation emitted by the segment within a range extending from about 300 nanometers to about 2,000 nanometers. Active nanoparticles are precisely positioned in resonant cavities by growing segments of nanowires at known growth rates for selected amounts of time.
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