摘要:
Disclosed are a metallic nanoparticle cluster ink and a method for forming a conductive metal pattern using the cluster ink. The metallic nanoparticle cluster ink comprises colloidal metallic nanoparticles and a bifunctional compound. The conductive metal pattern is formed by forming a metallic nanoparticle pattern on a substrate using a mold made from PDMS (poly(dimethylsiloxane) polymer as a stamp, and heat-treating the substrate. Micrometer-sized conductive metal patterns can be easily formed on various substrates in a simple and inexpensive manner without the use of costly systems, thereby being very useful in various industrial fields.
摘要:
An asymmetric &bgr;-ketoiminate ligand compound, represented by the following chemical formula (4): wherein, R1 is a linear or branched alkyl group containing 1 to 8 carbon atoms; R2 is a linear or branched alkyl group containing 2 to 9 carbon atoms, with the proviso that R2 contains more carbon atoms than R1; R′ is a linear or branched alkylene group containing 1 to 8 carbon atoms or a hydrocarbon containing 1 to 3 ethylene ether or propylene ether moieties, represented by —(CH2)nO— (n=2 or 3); R3 is a hydrogen atom or a linear or branched alkyl group containing 1 to 9 carbon atoms; and X is an oxygen atom or a sulfur atom.
摘要:
An organic metal precursors containing one or more organic ligands bonded to one or more metal atoms, wherein the organic ligand is rapidly dissociated from the metal atom upon exposure to light and degraded leaving a metal or a metal oxide. By using the organic metal precursors, an electroconductive, metal-containing patterned film can be easily deposited on a substrate at room temperature under atmospheric pressure without using photosensitive resins.
摘要:
A rapid and efficient process of forming a metal-containing pattern by producing, through photoreaction, a difference in solubility between exposed and unexposed areas of a thing film, and developing the film to produce a patterned film, followed by oxidation or reduction to provide a pure metal or metal oxide pattern.
摘要:
A cyclometalated transition metal complex very efficiently emits phosphorescent light and an organic electroluminescent device using the same. The transition metal complex is suitable for an organic layer of an organic electroluminescent device, can emit light with a wavelength of 400 to 650 nm, and can emit white light when used with a red emissive material or a green emissive material.
摘要:
An organic electroluminescent device having an emission layer, which is constructed with a host, a phosphorescence emission molecule as a dopant, and a fluorescence supporter. The fluorescence supporter receives energy from the host or traps energy directly, and then transfers the energy to the dopant or self-emits light. An emission spectrum of the fluorescence supporter and an absorption spectrum of the phosphorescence emission molecule overlap partly or completely. The organic electroluminescent device has improved luminous efficiency and color purity characteristics in comparison with a conventional organic electroluminescent device having an emission layer, which is composed of a phosphorescent dopant and a host. This system is useful in the manufacture of, in particular, blue emission devices.
摘要:
An organometallic complex that increases an energy band gap between HOMO and triplet MLCT states, and enables highly efficient phospholuminescence and can be used for an organic electroluminescent device. The organometallic complex, which is suitably used for forming an organic layer of the organic electroluminescent device, provides a luminescence maximum emission in the wavelength range of 400-650 nm, and induces white electroluminescence when combined with green or red luminescent materials.
摘要:
Disclosed herein are a novel gemini surfactant and a method for preparing a mesoporous material using the gemini surfactant. The method for preparing a mesoporous material uses the novel gemini surfactant as a structure-directing agent to provide a mesoporous material has a pore size of 10 nm or less with uniform pore size distribution.
摘要:
A cyclometalated transition metal complex exhibiting phosphorescence with high efficiency and an organic electroluminescent display device using the same are provided. This transition metal complex can be used in forming an organic film of an organic electroluminescent display device. The transition metal complex can emit light at the wavelength range of 400 to 650 nm. Further, the complex can emit white light by using a green light emitting material or a red light emitting material together.
摘要:
The present invention provides a composition for preparing porous dielectric thin films containing pore-generating material, said composition comprising gemini detergent, and/or a quaternary alkyl ammonium salt, a thermo-stable organic or inorganic matrix precursor, and solvent for dissolving the two solid components. There is also provided an interlayer insulating film having good mechanical properties such as hardness, modulus and hydroscopicity, which is required for semiconductor devices.