Abstract:
PURPOSE: A substrate for a semiconductor device, a nitrogen thin film structure using the same, and a forming method thereof are provided to obtain an ELO(Epitaxial Lateral Overgrowth) effect due to a hollow structure by growing a nitrogen thin film from the exposed substrate surface around the hollow structure. CONSTITUTION: A substrate(300) is used for a heterogeneous epitaxial thin film growth of semiconductor materials. A plurality of hollow structures(305) have an empty particle shape on the substrate. A nitride thin film(315) is formed on the substrate. The nitride thin film is comprised of two or more films. A buffer layer(310) is formed between the substrate and the nitride thin film.
Abstract:
PURPOSE: A quantum dot light emitting device and a manufacturing method thereof are provided to reduce manufacturing costs by forming a quantum light emitting layer and a charge transport layer by a solution process. CONSTITUTION: An anode(210) is formed in the top of a substrate. A quantum light-emitting layer(230) is formed on the anode and a charge transport particle and a quantum dot are mixed. A cathode is formed on the quantum light-emitting layer. A charge transport particle is an oxide nano particle. The diameter of a quantum dot is 2nm to 20nm. An electron-transport layer(240a) is composed an N-type semiconductor nano particle and is formed on the quantum light-emitting layer.
Abstract:
PURPOSE: A nitride thin film structure and a forming method thereof are provided to manufacture an optoelectronic device with high efficiency and high reliability by growing up nitride semiconductor epitaxial layer with superior material property. CONSTITUTION: A nitride thin film structure and a forming method thereof comprise a substrate(100), a hollow structure(105), and a nitride thin film(120). The nitride film comprises a first nitride film, a second nitride film, and a third nitride film. The first nitride film is form on a buffering layer above a hollow structure. The second nitride film is formed on the first nitride film. The third nitride film is formed on the second nitride film. The hollow structure is spread in the top of the substrate.
Abstract:
Disclosed are a quantum dot-block copolymer hybrid, methods of fabricating and dispersing the same, a light emitting device including the same, and a fabrication method thereof. The quantum dot-block copolymer hybrid includes; a quantum dot, and a block copolymer surrounding the quantum dot, wherein the block copolymer has a functional group comprising sulfur (S) and forms a chemical bond with the quantum dot.
Abstract:
PURPOSE: A method for manufacturing nanoparticle/block copolymer complex is provided to improve electrical, magnetic, optical, chemical, and mechanical properties of the nanoparticle without modifying the surface of the nanoparticle. CONSTITUTION: A method for manufacturing nanoparticle/block copolymer complex(1) includes a step of forming micelle through self-assembly by putting the block copolymer(A-b-B) with two block repeating units into a solvent. The solubility variables of organic ligand, the block copolymer, and the solvent satisfy a chemical formula 1, a chemical formula 2, or a chemical formula 3. The chemical formula 1 is 29