Conversion of just-continuous metallic films to large particulate substrates for metal-enhanced fluorescence
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United States of America Patent
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Sep 2, 2014
Grant Date -
Jan 27, 2011
app pub date -
Jan 30, 2009
filing date -
Jan 30, 2008
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Abstract
The present invention relates to a method of producing silver films having large nanoparticles caused by cracking during anaerobic annealing to provide surfaces that exhibit increased metal enhanced fluorescence. Preferably the annealing process is conducted on a silver film having a thickness from about 14 to 17 nm for about an hour at a temperature of approximately 190° C. to about 210° C. resulting in the conversion of the just-continuous films into large particulate films, not readily assessable by other chemical deposition techniques.
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