摘要:
An aqueous dispersion and a method for making an aqueous dispersion. The dispersion including at least one conductive polymer such as a polythienothiophene, at least one polyurethane polymer and optionally at least one colloid-forming polymeric acid and one non-fluorinated polymeric acid. Devices utilizing layers formed of the inventive dispersions are also disclosed.
摘要:
The invention relates to polymer light-emitting diodes (PLEDs) containing at least one transparent electrode as anode, at least one metal electrode as cathode and also an organic, light-emitting multilayer system composed of thermally crosslinked polymer layers, and a method for the production thereof.
摘要:
Disclosed is a method for producing a block copolymer which comprises two or more blocks composed of aromatic units having different basic structures from each other and has a high molecular weight, a narrow chain length distribution and a narrow molecular weight distribution. Also disclosed is a block copolymer produced by the method. The method for producing a block copolymer comprises the step of sequentially reacting two or more aromatic compounds which are selected from aromatic compounds represented by a specific general formula and are different in the group Ar, in the presence of a nickel complex containing a phosphine compound represented by a specific general formula or a palladium complex containing a phosphine compound represented by a specific general formula to thereby form blocks comprising the aromatic compounds sequentially, wherein the two or more aromatic compounds are reacted in descending order of parameter of aromatic ring charge.
摘要:
Disclosed are phosphors which can easily form thin film by a wet process and give organic electroluminescent devices permitting high-brightness light output, and a process for the production thereof; luminescent compositions containing the phosphors; and organic electroluminescent devices equipped with light-emitting layers containing the phosphors, and processes for the production thereof. The phosphor consists of a polymer containing in the molecule structural units represented by the general formula (1) wherein M is a di- to tetra-valent metal atom; R1 and R2 are each hydrogen, halogeno, alkyl, cycloalkyl, aryl, or a heterocyclic group and may be the same or different from each other; X1 is phenylene or carbonyloxy; X2 is alkylene; L is an organic ligand; p is an integer of 1 to 3; and q is 0 or 1.
摘要:
An imaging composition comprising a mixture of a solvent and a functional material; wherein the solvent is a compressed fluid and the functional material is a hole injecting material, a hole transporting material, an electron transporting material, an electroluminescent material which is dissolved, dispersed and/or solubilized in the compressed fluid; wherein the mixture is thermodynamically stable or thermodynamically metastable or both; wherein the functional material is solvent-free and forms a solid film upon deposition on the substrate. A display device using the composition is also disclosed.
摘要:
The invention relates to liquid compositions, especially solutions, of at least one organic semiconductor emitting light from the triplet state, in an organic solvent or solvent mixture. Said liquid compositions are characterized in that the concentration of certain compounds lies below a specific threshold value. Also disclosed is the use of the inventive liquid compositions for producing layers of the organic semiconductors on substrates, especially for the electronics industry.
摘要:
Disclosed are methods of using a transparent, luminescent polymer for transparent marking and/or labeling for identity verification purposes. Also disclosed are sheets, films, markers, labels and taggants comprising transparent, luminescent polymers. Also disclosed are articles labeled with a transparent, luminescent polymer. This invention particularly relates to use of transparent, luminescent polymer compositions comprising ethylene (meth)acrylic acid copolymers and rare earth ions and transparent, luminescent polymer compositions comprising methyl (meth)acrylate/(meth)acrylic acid copolymers, fatty acids and rare earth ions for these purposes.
摘要:
A novel electroluminescent polymer is represented by the general formula ( I ). A is (a-1) or the like, and B or B' is either the following (b-1) or (b-2). A film of the polymer represented by the general formula (I) can be formed by electrolytic polymerization, and further emits light in a different color by an electric field when a substituent thereof is changed. Therefore, a light-emitting device that is capable of multicolor displaying can be easily obtained.
摘要:
In an organic EL device 1, when a voltage is applied across an anode 3 and a cathode 5, holes are moved in a hole transport layer 41 and electrons are moved in an electron transport layer 43, and the holes and the electrons are recombined in a light emitting layer 42 to emit light. A light emitting material is used to form the light emitting layer 42. When the light emitting layer 42 is formed using the light emitting material, the light emitting layer contains one or more kinds of metallic impurities, but an amount of a metallic impurity of which content is the largest among the metallic impurities contained in the layer is 2.5 ppm or less, or when the light emitting material is dissolved in a liquid so that the concentration thereof becomes 2.0 wt%, the liquid contains one or more kinds of metallic impurities, but an amount of the metallic impurity of which content is the largest among the metallic impurities contained in the liquid is 50 ppb or less. By using such a light emitting material, the decrease of light-emission luminance of the organic EL device 1 can be suppressed.