Abstract:
The present invention relates to a bipolar strain sensor having a carbon nanotube (CNT) network film on a flexible substrate and a manufacturing method thereof. The bipolar strain sensor of the present invention can electrically detect and measure the size and orientation of the strain by applying metallic carbon nanotubes and the semiconducting carbon nanotubes, which are randomly arranged and connected, on one surface of the flexible substrate. Moreover, the bipolar strain sensor of the present invention has an advantage of being mass-manufactured at low cost through an easy and simple process and of being used as a chemical sensor capable of electrically detecting the presence and concentration of certain chemicals.
Abstract:
PURPOSE: A carbon nano tube electrode manufacturing method and a carbon nano tube electrode manufactured by the same are provided to manufacture an electrode by degrading a polymer resin having a light-functional group so that a process of a vacuum evaporation is not necessary. CONSTITUTION: A carbon nano tube(5) electrode manufacturing method is as follows. A bottom electrode is formed on the upper part of a substrate(1) made of insulating materials. A catalyst layer(4) is formed on the bottom electrode. The carbon nano tubes are placed on the substrate where the catalyst layer is formed. The substrate is made of insulating materials selected from a group including the silicon, quartz, sapphire, pyrex glass and alumina. The bottom electrode is formed into the carbon material including a deterioration carbon, graphene, a carbon nanotube film, a activated carbon, a diamond thin film, and graphite.
Abstract:
본 발명은 나노 전자소자 및 화학센서, 바이오센서 기타에 응용될 수 있는 단일겹 탄소 나노튜브 트랜지스터의 대량생산 방법에 관한 것이다. 변형된 퍼니스 및 필오프과정을 이용한 단일겹 탄소나노튜브 트랜지스터의 대량 생산방법은 SiO2층으로 절연된 실리콘 기판 위에 폴리메틸메타크릴레이트(PMMA)층을 형성하여 Fe/Mo 촉매가 위치할 패턴을 제작하는 1단계; 상기 실기콘 기판위의 Fe/Mo 촉매가 위치할 패턴에 Fe/Mo 촉매를 도포하고 건조하는 2단계; Fe/Mo 촉매위에 PDMS를 덮어준다음 폴리메틸메타크릴레이트(PMMA)층 위에 형성된 Fe/Mo 촉매를 필오프하는 3단계; 상기 Fe/Mo촉매와 반응한 실리콘 기판을 아세톤 용액에 담가 상기 폴리메틸메타크릴레이트를 리프트오프하여 제거하는 4단계; 퍼니스속에서 단일겹 탄소나노튜브를 성장시키는 5단계; 및 성장된 단일겹 탄소나노튜브에 전극을 형성하는 6단계;를 포함하고, 전 기판면적에 균일한 탄소 나노튜브의 성장이 가능한 퍼니스를 사용하고, 상기 Fe/Mo 촉매의 위치 선택적 도포가 가능한 것을 특징으로 한다. 단일겹 탄소나노튜브, 열증착법, 탄소나노튜브트랜지스터, 퍼니스구조, 필오프, 선택적 탄소 나노튜브 성장
Abstract:
PURPOSE: A mass production method of single layer carbon nanotube transistor is provided to mass produce the transistor of high performance which can be used as sensor with high sensitivity by enabling the selective growth of the carbon nano tube. CONSTITUTION: The polymethyl methacrylate layer is formed on a silicon substrate. The Fe/Mo catalyst is spread on the polymethyl methacrylate layer. The Fe/Mo catalyst formed on the polymethyl methacrylate layer is peeled off. The polymethyl methacrylate layer is removed by dipping the silicon substrate reacted with the Fe/Mo catalyst in the acetone solution.