Electrode, method for manufacturing the same, and organic light emitting diode display including the same

Abstract

An electrode includes: a polymer layer including a non-conductive material; a conductive nanomaterial embedded in a top surface of the polymer layer; and a planarization layer on the polymer layer and on the conductive nanomaterial. The planarization layer includes a conductive material and a surfactant.

What is claimed is: 
     
         1 . An electrode comprising:
 a polymer layer comprising a non-conductive material;   a conductive nanomaterial embedded in the polymer layer; and   a planarization layer comprising a conductive material and a surfactant on the polymer layer and on the conductive nanomaterial.   
     
     
         2 . The electrode of  claim 1 , wherein the planarization layer comprises:
 polyethylenedioxythiophene:polystyrenesulfonate (PEDOT:PSS); and   a fluorine-based surfactant.   
     
     
         3 . The electrode of  claim 2 , wherein the conductive nanomaterial comprises a metal nanowire. 
     
     
         4 . The electrode of  claim 3 , wherein the metal nanowire comprises at least one of silver (Ag), copper (Cu), gold (Au), platinum (Pt), palladium (Pd), chromium (Cr), nickel (Ni), and aluminum (Al). 
     
     
         5 . The electrode of  claim 4 , wherein a volume of the conductive nanomaterial embedded in the polymer layer comprises about 0.05% to 20% of a total volume of the polymer layer. 
     
     
         6 . The electrode of  claim 4 , wherein the polymer layer comprises at least one of polyimide (PI), polyethylene terephthalate (PET), polyethersulfone (PES), polyethylene naphthalate (PEN), polycarbonate (PC), polymethyl methacrylate (PMMA), polyvinyl alcohol (PVA), triacetyl cellulose (TAC), polystyrene (PS), polyether imide (PEI), polydimethylsiloxane (PDMS), a silicone resin, a fluorine resin, or an epoxy resin. 
     
     
         7 . A method of manufacturing an electrode comprising:
 forming a planarization layer comprising a conductive material and a surfactant on a substrate;   coating a conductive nanomaterial on the planarization layer;   forming a polymer layer by coating and curing a curable polymer on the planarization layer and on the conductive nanomaterial; and   removing the substrate.   
     
     
         8 . The method of  claim 7 , wherein the planarization layer further comprises:
 polyethylenedioxythiophene:polystyrenesulfonate (PEDOT:PSS); and   a fluorine-based surfactant.   
     
     
         9 . The method of  claim 8 , wherein the conductive nanomaterial comprises a metal nanowire comprising at least one of silver (Ag), copper (Cu), gold (Au), platinum (Pt), palladium (Pd), chromium (Cr), nickel (Ni), or aluminum (Al). 
     
     
         10 . The method of  claim 9 , wherein, prior to forming the planarization layer, the method further comprises forming a sacrificial layer comprising a hydrophobic material on the substrate. 
     
     
         11 . The method of  claim 10 , wherein the sacrificial layer comprises at least one of polymethyl methacrylate (PMMA), a photosensitive polymer (PR), or polyvinyl phenol (PVP). 
     
     
         12 . The method of  claim 11 , wherein the curable polymer is cured by heat treatment for about 90 min. to about 150 min. at about 65° C. to about 75° C. 
     
     
         13 . The method of  claim 11 , wherein the polymer layer comprises at least one of polyimide (PI), polyethylene terephthalate (PET), polyethersulfone (PES), polyethylene naphthalate (PEN), polycarbonate (PC), polymethyl methacrylate (PMMA), polyvinyl alcohol (PVA), triacetyl cellulose (TAC), polystyrene (PS), polyether imide (PEI), polydimethylsiloxane (PDMS), a silicone resin, a fluorine resin, or an epoxy resin. 
     
     
         14 . An organic light emitting diode (OLED) display comprising:
 a substrate;   a thin film transistor on the substrate;   a first electrode electrically coupled to the thin film transistor;   a light-emitting element layer on the first electrode; and   a second electrode on the light-emitting element layer,   wherein at least one of the first electrode and the second electrode comprises:
 a polymer layer comprising a non-conductive material; 
 a conductive nanomaterial embedded in the polymer layer; and 
 a planarization layer comprising a conductive material and a surfactant on the polymer layer and on the conductive nanomaterial. 
   
     
     
         15 . The OLED display of  claim 14 , wherein the planarization layer comprises
 polyethylenedioxythiophene:polystyrenesulfonate (PEDOT:PSS); and   a fluorine-based surfactant.   
     
     
         16 . The OLED display of  claim 15 , wherein the conductive nanomaterial comprises a metal nanowire comprising at least one of silver (Ag), copper (Cu), gold (Au), platinum (Pt), palladium (Pd), chromium (Cr), nickel (Ni), or aluminum (Al). 
     
     
         17 . The OLED display of  claim 16 , wherein the polymer layer comprises at least one of polyimide (PI), polyethylene terephthalate (PET), polyethersulfone (PES), polyethylene naphthalate (PEN), polycarbonate (PC), polymethyl methacrylate (PMMA), polyvinyl alcohol (PVA), triacetyl cellulose (TAC), polystyrene (PS), polyether imide (PEI), polydimethylsiloxane (PDMS), a silicone resin, a fluorine resin, or an epoxy resin.