Semiconductor Ink Composition
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United States of America Patent
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Issued Date -
Feb 20, 2014
app pub date -
Aug 16, 2012
filing date -
Aug 16, 2012
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Abandoned
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Abstract
A representative printable composition comprises a liquid or gel suspension of a plurality of substantially spherical semiconductor particles; and a first solvent comprising a polyol or mixtures thereof, such as glycerin; and a second solvent different from the first solvent, the second solvent comprising a carboxylic or dicarboxylic acid or mixtures thereof, such as glutaric acid. The composition may further comprise a third solvent such as tetramethylurea, butanol, or isopropanol. In various embodiments, the plurality of substantially spherical semiconductor particles have a size in any dimension between about 5 nm and about 100μ. A representative composition can be printed and utilized to produce diodes, such as photovoltaic diodes or light emitting diodes.
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