Enhancing performance in ink-jet printed organic semiconductors
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United States of America Patent
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Issued Date -
Nov 29, 2007
app pub date -
May 26, 2006
filing date -
May 26, 2006
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Abstract
Systems and methods are provided to improve the performance of electronic and optoelectronic devices made using organic semiconductor processing technology. An ink-jet device dispenses an organic composite mixture onto a substrate. The mixture includes a semiconducting polymer and nanomaterials dispersed into an organic solvent. The type of solvent used preferably achieves effective dispersion of the polymer and nanomaterials in the solvent to minimize the occurrence of clogging of the ink-jet nozzles. The range of nanomaterials include, but are not limited to, organic and inorganic, single or multi-walled nanotubes, nanowires, nanodots, quantum dots, nanorods, nanocrystals, nanotetrapods, nanotripods, nanobipods, nanoparticles, nanosaws, nanosprings, nanoribbons, any branched nanostructure, and any mixture of these nanoshaped materials. The nanostructures can be aligned on the substrate to improve the carrier mobility in the organic semiconductors.
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