Layered composite film incorporating quantum dots as programmable dopants
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United States of America Patent
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Apr 6, 2010
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Jun 3, 2005
filing date -
Jun 4, 2004
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Abstract
Quantum dots are positioned within a layered composite film to produce a plurality of real-time programmable dopants within the film. Charge carriers are driven into the quantum dots by energy in connected control paths. The charge carriers are trapped in the quantum dots through quantum confinement, such that the charge carriers form artificial atoms, which serve as dopants for the surrounding materials. The atomic number of each artificial atom is adjusted through precise variations in the voltage across the quantum dot that confines it. The change in atomic number alters the doping characteristics of the artificial atoms. The layered composite film is also configured as a shift register.
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