Quantum dot phosphors for solid-state lighting devices
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United States of America Patent
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Oct 4, 2011
Grant Date -
Jan 14, 2010
app pub date -
Jul 14, 2009
filing date -
Jul 14, 2008
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Abstract
A phosphor for use, for example, with an ultraviolet LED to provide a broad-spectrum white light approximating diffuse sunlight, that includes quantum dots spaced from an activator material by a capping layer surrounding the quantum dots. This approach of spacing an activator material from the quantum dots provides improved spectral output for quantum dots of materials such as zinc sulfide.
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