CHARGE INJECTION LAYER FOR ELECTRO-OPTICAL DEVICES
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United States of America Patent
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Issued Date -
Feb 25, 2010
app pub date -
May 7, 2007
filing date -
May 30, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to charge injection from metallic conductors to semiconductor or insulation materials based on organic or inorganic molecules and macromolecules with electrical or optical properties, and specifically to a new charge injection layer for electro-optical devices comprising a polymer with conjugated units and a salt mixed with the aforementioned polymer, characterized in that the oxidation state of the polymer is not modified when it is mixed with the salt. Despite the fact that there is no change in the oxidation state of the polymer, the polymer and salt mixture according to the invention makes it possible for a high enough number of charges to reach the optically active layer, such that the efficiency in the charge injection process is increased up to levels exceeding even those provided by the standard PEDOT.
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