Abstract: A method is used to prepare silver nanoparticles or copper nanoparticles in the form of a silver nanoparticle cellulosic polymeric composite or a copper nanoparticle cellulose polymeric composite, respectively. A cellulosic polymer, organic solvent having a boiling point at atmospheric pressure of 100° C. to 500° C. and a Hansen parameter (?TPolymer) equal to or greater than that of the cellulosic polymer, ascorbic acid, and a nitrogenous base are mixed to form a premix solution. At room temperature or upon heating the premix solution to a temperature of at least 40° C., a solution of reducible silver ions or reducible copper ions is added. The resulting silver or copper nanoparticle composite is cooled, isolated, and re-dispersed in an organic solvent, providing a non-aqueous silver-containing or copper-containing dispersion that can be disposed on a substrate to form an article.

Abstract: A method is used to prepare silver nanoparticles in the form of a silver nanoparticle cellulosic polymeric composite. A cellulosic polymer, organic solvent having a boiling point at atmospheric pressure of 100° C. to 500° C. and a Hansen parameter (?TPolymer) equal to or greater than that of the cellulosic polymer, and a nitrogenous base are mixed to form a premix solution. Upon heating the premix solution to a temperature of at least 75° C., a solution of reducible silver ions is added that is equimolar or less in relation to the nitrogenous base. The weight ratio of reducible silver ions to the cellulosic polymer is 5:1 to 50:1. The resulting silver nanoparticle composite is cooled, isolated, and re-dispersed in an organic solvent, providing a non-aqueous silver-containing dispersion comprising the silver nanoparticle cellulosic polymeric composite.

Abstract: A precursor article has a substrate and a photosensitive thin film or a photosensitive thin film pattern on a supporting side. The photosensitive thin film and each photosensitive thin film patterns comprises a non-hydroxylic-solvent soluble silver complex that is represented by the following formula (I): (Ag+)a(L)b(P)c?? (I) wherein L represents an ?-oxy carboxylate; P represents a 5- or 6-membered N-heteroaromatic compound; a is 1 or 2; b is 1 or 2; and c is 1, 2, 3, or 4, provided that when a is 1, b is 1, and when a is 2, b is 2. A photosensitizer that can either reduce the reducible silver ion or oxidize the ?-oxy carboxylate having a reduction potential can also be present. Such precursor articles can be irradiated with UV-visible radiation to reduce the silver ions to provide electrically-conductive metallic silver in thin films or thin film patterns in product articles or devices.

Abstract: A method is used to prepare silver nanoparticles or copper nanoparticles in the form of a silver nanoparticle cellulosic polymeric composite or a copper nanoparticle cellulose polymeric composite, respectively. A cellulosic polymer, organic solvent having a boiling point at atmospheric pressure of 100° C. to 500° C. and a Hansen parameter (?TPolymer) equal to or greater than that of the cellulosic polymer, ascorbic acid, and a nitrogenous base are mixed to form a premix solution. At room temperature or upon heating the premix solution to a temperature of at least 40° C., a solution of reducible silver ions or reducible copper ions is added. The resulting silver or copper nanoparticle composite is cooled, isolated, and re-dispersed in an organic solvent, providing a non-aqueous silver-containing or copper-containing dispersion that can be disposed on a substrate to form an article.

Abstract: A method is used to prepare silver nanoparticles in the form of a silver nanoparticle cellulosic polymeric composite. A cellulosic polymer, organic solvent having a boiling point at atmospheric pressure of 100° C. to 500° C. and a Hansen parameter (?TPolymer) equal to or greater than that of the cellulosic polymer, and a nitrogenous base are mixed to form a premix solution. Upon heating the premix solution to a temperature of at least 75° C., a solution of reducible silver ions is added that is equimolar or less in relation to the nitrogenous base. The weight ratio of reducible silver ions to the cellulosic polymer is 5:1 to 50:1. The resulting silver nanoparticle composite is cooled, isolated, and re-dispersed in an organic solvent, providing a non-aqueous silver-containing dispersion comprising the silver nanoparticle cellulosic polymeric composite.

Abstract: A precursor article has a substrate and a photosensitive thin film or a photosensitive thin film pattern on a supporting side. The photosensitive thin film and each photosensitive thin film patterns comprises a non-hydroxylic-solvent soluble silver complex that is represented by the following formula (I): (Ag+)a(L)b(P)c?? (I) wherein L represents an ?-oxy carboxylate; P represents a 5- or 6-membered N-heteroaromatic compound; a is 1 or 2; b is 1 or 2; and c is 1, 2, 3, or 4, provided that when a is 1, b is 1, and when a is 2, b is 2. A photosensitizer that can either reduce the reducible silver ion or oxidize the ?-oxy carboxylate having a reduction potential can also be present. Such precursor articles can be irradiated with UV-visible radiation to reduce the silver ions to provide electrically-conductive metallic silver in thin films or thin film patterns in product articles or devices.

Abstract: An electroluminescent device comprises a cathode, an anode, and has therebetween a light emitting layer (LEL), the device further containing an electron transport layer (ETL) comprising an anthracene compound on the cathode side of the LEL and an organic electron injection layer (EIL) between the ETL and the cathode comprising a phenanthroline compound, wherein the thickness of the EIL and LEL are such that the ratio of the thickness of the EIL to LEL is greater than 0.125.

Abstract: An OLED device comprises a cathode, an anode, and has therebetween a light-emitting layer wherein the light-emitting layer comprises (a) a 2-arylanthracene compound and (b) a light-emitting second anthracene compound having amino substitution at a minimum of two positions, wherein at least one amine is substituted at the 2 position of the second anthracene compound.

Abstract: An OLED device including a cathode, a light emitting layer and an anode, in that order, and, having located between the cathode and the light emitting layer, a further layer containing an alkali metal or alkaline earth metal salt of a 2-(2-hydroxyphenyl)phenanthroline derivative, according to Formula (MC) below. Such devices exhibit reduced drive voltage while maintaining good luminance.

Abstract: An OLED device comprises a cathode, an anode, and has therebetween a light-emitting layer wherein the light-emitting layer comprises (a) a 2-arylanthracene compound and (b) a light-emitting second anthracene compound having amino substitution at a minimum of two positions, wherein at least one amine is substituted at the 2 position of the second anthracene compound.

Abstract: An OLED device comprises a cathode, an anode, and has therebetween a light-emitting layer wherein the light-emitting layer comprises (a) a 2-arylanthracene compound and (b) a light-emitting second anthracene compound having amino substitution at a minimum of two positions, wherein at least one amine is substituted at the 2 position of the second anthracene compound.

Abstract: The invention provides an OLED device including an anode, a cathode and a green light-emitting layer located therebetween, said light-emitting layer including an anthracene host, a bis-diarylamine 9,10-substituted anthracene and a stabilizer compound which is selected from a quinacridone or a biphenylstyrylamine. Devices of the invention provide improvement in features such as stability and efficiency while maintaining excellent color.

Abstract: The invention provides an OLED device including an anode, a cathode and a green light-emitting layer located therebetween, said light-emitting layer including an anthracene host, a bis-diarylamine 9,10-substituted anthracene and a stabilizer compound which is selected from a quinacridone or a biphenylstyrylamine. Devices of the invention provide improvement in features such as stability and efficiency while maintaining excellent color.

Abstract: An electroluminescent device comprises a cathode, an anode, and has therebetween a light emitting layer (LEL), the device further containing an electron transport layer (ETL) on the cathode side of the LEL and an organic electron injection layer (EIL) contiguous to the ETL on the cathode side, wherein the ETL contains a monoanthracene compound bearing aromatic groups in the 2-, 9-, and 10-positions.

Abstract: An OLED device including a cathode, a light emitting layer and an anode, in that order, and, having located between the cathode and the light emitting layer, a further layer containing an alkali metal or alkaline earth metal salt of a 2-(2-hydroxyphenyl)phenanthroline derivative. Such devices exhibit reduced drive voltage while maintaining good luminance.

Abstract: An electroluminescent device comprises a cathode and an anode; and, located therebetween, a light-emitting layer (LEL) comprising at least one hole transporting co-host and at least one electron transporting co-host, together with at least one phosphorescent emitter, and wherein the triplet energy of each of the co-host materials is greater than the triplet energy of the phosphorescent emitter, and further containing an exciton blocking layer comprising a hole transporting material with triplet energy greater or equal to 2.5 eV adjacent the emitting layer on the anode side. The invention provides devices that emit light with high luminous efficiency at low voltage.

Abstract: A tandem white OLED includes an anode; a cathode; at least one broadband electroluminescent unit disposed between the anode and the cathode, wherein the broadband electroluminescent unit includes at least one light-emitting layer and produces at least one color component having an intensity less than desired; at least one color-compensating electroluminescent unit disposed between the anode and the cathode, wherein the color-compensating electroluminescent unit is selected to produce the at least one color component and to increase the color component intensity; and an intermediate connector disposed between each adjacent electroluminescent unit, wherein the intermediate connector has no direct connection to an external power source.

Abstract: An OLED device comprises a cathode, an anode, and a light-emitting layer therebetween, and additionally comprises a layer between the cathode and the light-emitting layer including a compound comprising one and only one anthracene nucleus bearing no more than two phenanthroline-containing substituents wherein said anthracene nucleus is substituted in the 2-, 3-, 6-, or 7-position with a phenanthroline-containing substituent. When such materials are included in a layer, such as an electron-transporting layer, that provide both desirable electroluminescent properties as well as good device stability.

Abstract: An OLED device comprising an anode and a cathode spaced from the anode, two EL units disposed between the anode and cathode, such EL units being in contact with each other and each having at least one light emitting layer; and each EL unit further includes a p-type doped organic hole transporting layer disposed between the light emitting layer and the anode, and an n-type doped organic electron transporting layer disposed between the light emitting layer and the cathode.

Abstract: An OLED including an anode; a cathode; a hole-injecting layer disposed over the anode, wherein the hole-injecting layer includes a first organic material with a reduction potential greater than ?0.1 V and a lesser amount by volume of a second material with an oxidation potential less than 0.7 V, and wherein the second material does not include metal complexes; a hole-transporting layer disposed over the hole-injecting layer; a light-emitting layer disposed between the hole-transporting layer and the cathode; and an electron-transporting layer disposed between the light-emitting layer and the cathode.