Abstract:
PURPOSE: A method for manufacturing gas detecting metal oxide-based nano-tube and a metal oxide-based gas sensor using the same are provided to increase the sensitivity with respect to target gas by increasing the surface area and the length of the nano-tube. CONSTITUTION: A nano fiber template(112) is formed by spinning a polymer solution. A metal oxide-based thin film(124) for detecting gas is deposited on the template through an atomic layer deposition method, and an intermediate structure is obtained. The intermediate structure is thermally treated, and the template is eliminated. Metal oxide-based nano-tube(134) is formed. A metal oxide-based gas sensor includes the network structure of nano-tubes and an electrode applying power to the network structure.
Abstract:
나노구조물 가스센서는 기판, 상기 기판 위에 서로 이격되어 배치된 제1 전극과 제2 전극, 복수의 나노구조물들 및 가스의 흡착에 따라 상기 복수의 나노구조물들의 전기적 특성을 변화시키는 금속산화물층을 포함한다. 상기 복수의 나노구조물들은 상기 제1 전극과 상기 제2 전극을 연결한다.
Abstract:
PURPOSE: A nanostructure gas sensor with a metallic oxide layer, a nanostructure gas sensor array thereof, and a manufacturing method thereof are provided to easily control the size and thickness of a metallic oxide layer using a physical vapor deposition method. CONSTITUTION: A nanostructure gas sensor(300) with a metallic oxide layer comprises a substrate(110), first and second electrodes(120,130), multiple nanostructures(140), and a metallic oxide layer(150). The nanostructures are arranged on the substrate, and connect the first and second electrodes. The metallic oxide layer changes the electrical characteristics of the nanostructures.