Excitation-intensity-dependent, color-tunable, dual emitting nanocrystals
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United States of America Patent
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Apr 2, 2013
Grant Date -
Oct 21, 2010
app pub date -
Apr 7, 2010
filing date -
Apr 17, 2009
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Abstract
An embodiment of the invention is a device for photo-stimulated color emission having at least one plurally doped semiconducting nanoparticle comprising at least one semiconducting material and a plurality of at least one dopant coupled with an irradiation source such that the plurally doped semiconducting nanoparticle emit electromagnetic radiation at two or more wavelengths where the intensities of the emissions depend on the intensity of the irradiation. In an embodiment of the invention, the plurally doped semiconducting nanoparticle can be a doped core/shell nanoparticle where the plurality of dopants can reside in exclusively the core, exclusively the shell, or in both the core and shell.
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