Patent ID: 7902086
Filing Date: 2011-03-08
Classification: G11C,H01L

Abstract:
1. A method for improving memory retention of a polymer memory cell comprising: providing a first electrode on a substrate and optionally forming a passive layer over the first electrode; forming a semiconducting polymer layer over the first electrode or the passive layer if present, the semiconducting polymer layer comprising a semiconducting polymer and at least one of 1) a carrier ion oxidation preventer and 2) an electrode oxidation preventer; and providing a second electrode over the semiconducting polymer layer, wherein the carrier ion/electrode oxidation preventer is one or more selected from a metal complex exhibiting oxygen scavenging activity, a Group IA element, an oxygen scavenger that is an organic compound, an oxygen scavenger that is an inorganic compound, an oxidizable compound, and an oxidizable polymer; wherein the semiconducting polymer is one or more selected from conjugated organic polymers, organometallic polymers, carbon nanotubes, and carbon buckyballs; and wherein the carrier ion/electrode oxidation preventer is present in an amount to react with oxygen or oxygen radicals to prevent or delay oxidation of carrier ions or carrier charges.