METHOD OF FORMING AN ORGANIC LIGHT EMITTING DEVICE
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United States of America Patent
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Issued Date -
Jun 18, 2015
app pub date -
May 17, 2013
filing date -
May 28, 2012
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Abstract
A method of forming an organic light-emitting device comprising an anode, a cathode and at least one light-emitting layer between the anode and the cathode, the method comprising the steps of: providing an anode layer supported on a surface of the substrate, wherein the anode layer comprises indium tin oxide formed by sputtering indium-tin oxide onto the substrate surface at a substrate surface temperature of less than 100° C., applying the at least one light-emitting layer and the cathode over the anode layer, and applying a hole injection layer that is located in the organic light-emitting device between the anode layer and the light-emitting layer and in contact with the anode layer. The hole-injection layer comprises a conductive polymer, comprising substituted or unsubstituted thiophene repeat units, and a non-conductive material.
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