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    • 7. 发明公开
    • p형 산화물 반도체 나노섬을 코팅한 n형 산화물 반도체 나노선 가스 센서 및 그 제조 방법
    • 涂覆有p型氧化物半导体的离散纳米岛的N型氧化物半导体纳米线气体传感器及其制造方法
    • KR1020120059038A
    • 2012-06-08
    • KR1020100120639
    • 2010-11-30
    • 고려대학교 산학협력단
    • 이종흔나찬웅
    • G01N27/414G01N27/26
    • PURPOSE: An n-type oxide semiconductor nanowire gas sensor coated with a p-type oxide semiconductor nanosome and a manufacturing method thereof are provided to control relative gas sensitivity with respect to the resistance of the nanowire and oxidation gas and reducing gas by forming a p-n joining portion on interfaces of an n-type oxide semiconductor nanowire and p-type oxide semiconductor nanosome. CONSTITUTION: A gas sensor comprises a gas inductor(20) composing of a discontinuous p-type oxide semiconductor nanosome formed on a n-type oxide semiconductor nanowire. The n-type oxide semiconductor nanowire are one selected among ZnO, SnO2, In2O3, WO3, Fe2O3, TiO2, and a mixture of the same. The p-type oxide semiconductor nanosome are one selected among Co3O4, CoO, NiO, Ni2O3, MnO2, Mn3O4, CuO, Cr2O3, Bi2O3, and a mixture of the same.
    • 目的:提供涂覆有p型氧化物半导体纳米颗粒的n型氧化物半导体纳米线气体传感器及其制造方法,以通过形成pn来控制相对于纳米线和氧化气体和还原气体的电阻的相对气体灵敏度 在n型氧化物半导体纳米线和p型氧化物半导体纳米体的界面上的接合部分。 构成:气体传感器包括由形成在n型氧化物半导体纳米线上的不连续p型氧化物半导体纳米颗粒构成的气体电感器(20)。 n型氧化物半导体纳米线是选自ZnO,SnO 2,In 2 O 3,WO 3,Fe 2 O 3,TiO 2及其混合物中的一种。 p型氧化物半导体纳米颗粒是选自Co 3 O 4,CoO,NiO,Ni 2 O 3,MnO 2,Mn 3 O 4,CuO,Cr 2 O 3,Bi 2 O 3及其混合物中的一种。
    • 9. 发明公开
    • 나노 기공성 구조의 산화코발트를 이용한 가스 센서 및 그 제조 방법
    • 使用纳米多孔钴氧化物结构的气体传感器及其制造方法
    • KR1020110006800A
    • 2011-01-21
    • KR1020090064355
    • 2009-07-15
    • 고려대학교 산학협력단
    • 이종흔최권일김해룡
    • G01N27/12B82B3/00
    • PURPOSE: A gas sensor using cobalt oxide of nano porous structure and a manufacturing method thereof are provided to manufacture a gas sensor with small primary particles since a porous gas sensor is made of Co3O4 which has nano porous structure. CONSTITUTION: A manufacturing method of a gas sensor using cobalt oxide of nano porous structure comprises following steps. The Co3O4 particle having the nano structure is formed. A film is formed by the particle and a Co3O4 gas sensitive layer of the nano porous structure is formed. The amino acid is added in the Co precursor, so the hydrothermal synthesis reaction is raised(S2). The organic acid is added more in the Co precursor and the hydrothermal synthesis reaction is raised. Oxalic acid is used as the organic acid.
    • 目的:提供一种使用纳米多孔结构的氧化钴的气体传感器及其制造方法,由于多孔气体传感器由具有纳米多孔结构的Co 3 O 4制成,因此制造具有小一次粒子的气体传感器。 构成:使用纳米多孔结构的氧化钴的气体传感器的制造方法包括以下步骤。 形成具有纳米结构的Co 3 O 4颗粒。 由该颗粒形成膜,形成纳米多孔结构的Co 3 O 4气体敏感层。 在Co前体中加入氨基酸,使水热合成反应升高(S2)。 在Co前体中加入有机酸,提高水热合成反应。 草酸用作有机酸。