Abstract:
The present invention relates to a flexible multi-layered thermoelectric device with enhanced thermoelectric efficiency and a fabricating method thereof. The electromotive force of a multi-layered thermoelectric device including a n-type carbon nanotube layer and a p-type n-type carbon nanotube layer increases due to excellent thermoelectric performance index proportional to the square of a Seebeck coefficient due to the excellent Seebeck coefficient. The multi-layered thermoelectric device can easily enlarge by easily controlling the area of the nanocarbon film. The multi-layered thermoelectric device can replace an inorganic thermoelectric device by producing in low brittleness, chemical stability, and a low processing cost by using a nanocarbon film. The multi-layered thermoelectric device can be applied not only as a high performance thermoelectric device for heating and cooling using the performance index but also in many industries.
Abstract:
PURPOSE: A thermally conductive material is provided to improve flexibility, toughness, and processability of a polymer composite by reducing the content of a thermal conductor and to obtain excellent thermal conductivity. CONSTITUTION: A thermally conductive material comprises thermally conductive hollow particles and polymer resins. The thermally conductive hollow particle consists of one selected from carbon nanotubes, graphene, graphite nanosheets, aluminum nitride, boron nitride, and aluminum oxide. The polymer resin is selected from a silicon resin, epoxy resin, and polyethylene resin. The thermally conductive hollow particle is dispersed in the polymer resin with maintaining the hollow shape. [Reference numerals] (AA) Thermally conductive filler; (BB) Polymer matrix; (CC) Thermally conductive hollow particles;
Abstract:
PURPOSE: A manufacturing method of a polymer/nanographene nanocomposite film is provided to be environmentally friendly and to manufacture a polymer nanocomposite with excellent gas blocking and mechanical properties. CONSTITUTION: A manufacturing method of a polymer/nanographene nanocomposite film comprises a step of dispersing a lamellar graphite into a solvent; a step of ultrasonic treating the dispersion liquid in a solution and separating a nanographene sheet; a step of mixing a polymer solution and the nanographene sheet solution and ultrasonic wave treating the mixture; and a step of coating a glass substrate with the ultrasonic-waved mixed solution and drying the coated material to manufacture a film. A nanographene sheet is dispersed in the polymer.
Abstract:
본 발명은 전도성필름 제조방법 및 전도성필름에 관한 것으로, 상기 전도성필름 제조방법은 탄소나노튜브를 용매에 분산시키는 단계와, 상기 용매에 상기 탄소나노튜브의 편석을 유도하는 편석유도 물질을 혼합하는 단계 및 상기 편석유도 물질이 혼합된 상기 탄소나노튜브 분산액을 기판상에 코팅하여 전극층을 형성하는 단계를 포함한다. 이에 의하여 본 발명은 표면의 전기전도도가 균일하고, 광투과성의 정도가 우수한 전도성필름을 구현한다. 전도성필름, 광투과성, 편석유도
Abstract:
PURPOSE: A method for manufacturing a carbon nanotube-epoxy resin complex using a supercritical fluid process and the complex manufactured by the same are provided to uniformly disperse carbon nanotube in a polymeric medium. CONSTITUTION: A method for manufacturing a carbon nanotube-epoxy resin complex includes the following: Carbon nanotube is dispersed in an epoxy curing agent to manufacture a carbon nanotube-curing agent complex based on a supercritical fluid process by adding the carbon nanotube, the epoxy curing agent, and a solvent in a reactor at point which is lower than the critical point of the solvent. An epoxy resin is reacted with the carbon nanotube-curing agent.
Abstract:
PURPOSE: A thermoelectric material containing the carbon nano-tube film of a porous structure and a method for manufacturing the same are provided to improve the electric conductivity of the thermoelectric material by forming three-dimensional network for the carbon nano-tube. CONSTITUTION: Carbon nano-tube(2) is in connection with a three-dimensional network structure. The carbon nano-tube film with a porous structure includes the carbon nano-tube. A thermoelectric material includes the carbon nano-tube film of the porous structure. The three-dimensional network structure includes pores(3). The diameter of a pore is between 10nm and 10um.
Abstract:
본 발명은 전도성필름 제조방법 및 전도성필름에 관한 것으로, 상기 전도성필름 제조방법은 금속 전구체 및 전도성 고분자물질 중 적어도 하나가 혼합된 혼합용액을 형성하는 단계와, 전도성 구조체가 형성되도록 상기 혼합용액을 미립화시켜 기판의 표면에 분사하는 단계, 및 전기전도도를 향상시키도록 상기 전도성 구조체에 탄소나노튜브를 결합시키는 단계를 포함한다. 이에 의하여 본 발명은 전기전도도가 우수하고, 제조가 쉬운 전도성필름을 구현한다. 탄소나노튜브, 전도성필름, 전도성 구조체
Abstract:
본 발명은 층상구조(layered structure)의 무기물질을 이용한 고체형 전해질(solid-state electrolyte) 제조 및 이를 이용한 염료감응 태양전지(dye-sensitized solar cell)의 제조에 관한 것으로, 특히 이온교환(ion-exchange)을 이용한 삽입(intercalation) 기술을 통하여 고체형 나노복합 전해질을 제조한다. 본 발명의 고체형 나노복합 전해질은 이온전도성이 우수한 이온성 액체(ionic liquid)에 층상구조의 무기물질이 나노스케일로 분산되어 이온전도성 및 장기안정성이 우수하다. 이러한 고체형 나노복합 전해질을 적용한 태양전지는 우수한 전류밀도를 가지면서 전해질 누수의 위험을 줄일 수 있으며, 그에 따라 상기 태양전지의 작동 효율 및 장기안정성을 향상시킬 수 있다. 층상구조(layered structure), 무기물질(inorganic materials), 이온교환(ion-exchange), 삽입(intercalation), 이온성 액체(ionic liquid), 고체형 전해질(solid-state electrolyte), 염료감응 태양전지(dye-sensitized solar cell)
Abstract:
PURPOSE: A method for preparing an electrically conductive adhesive is provided to ensure simple processing and short processing time and to prevent environmental contamination. CONSTITUTION: An electrically conductive adhesive comprises a conductive material with a network structure and an adhesive composition applied on the surface of the conductive material. A method for preparing the electrically conductive adhesive comprises the steps of: (i) preparing a spinning solution; (ii) electrospinning the spinning solution; (iii) forming a conductive material with a network structure by heat-treating the electrospun filber; and (iv) applying the adhesive composition on the conductive material to obtain a conductive adhesive.
Abstract:
PURPOSE: A conductive film and a method for manufacturing the same are provided to implement high electric conductivity by combining a carbon nano tube with a conductive structure. CONSTITUTION: A conductive film(100) comprises a light transmission substrate(110) and an electrode layer(120). An electrode layer is comprised of a conductive structure(121) of a plurality of strands. The conductive structure is combined with a carbon nano tube(122). The carbon nano tube is extended from the conductive structure to an empty space on the substrate.