Method of forming a passivated densified nanoparticle thin film on a substrate
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United States of America Patent
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Sep 25, 2012
Grant Date -
Mar 3, 2011
app pub date -
Nov 4, 2010
filing date -
Mar 13, 2008
priority date (Note) -
Expired
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Abstract
A method for forming a passivated densified nanoparticle thin film on a substrate in a chamber is disclosed. The method includes depositing a nanoparticle ink on a first region on the substrate, the nanoparticle ink including a set of Group IV semiconductor particles and a solvent. The method also includes heating the nanoparticle ink to a first temperature between about 30° C. and about 400° C., and for a first time period between about 1 minute and about 60 minutes, wherein the solvent is substantially removed, and a porous compact is formed. The method further includes flowing an oxidizer gas into the chamber; and heating the porous compact to a second temperature between about 600° C. and about 1000° C., and for a second time period of between about 5 seconds and about 1 hour; wherein the passivated densified nanoparticle thin film is formed.
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