Polymer buffer layers and their use in light-emitting diodes
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United States of America Patent
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Oct 18, 2005
Grant Date -
Dec 4, 2003
app pub date -
Feb 24, 2003
filing date -
Feb 28, 2002
priority date (Note) -
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Abstract
The present invention is directed to improved transparent electrically conductive buffer layers for light-emitting diodes. The use of an aqueous dispersion containing an electrically conducting polymer and a non-ionic surfactant or an ionic fluorosurfactant to form the buffer layer has been shown to provide a buffer layer that results in improved light-emitting diode performance.
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