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    • 5. 发明申请
    • High-Performance Flexible Hydrogen Sensors
    • 高性能柔性氢传感器
    • US20090084159A1
    • 2009-04-02
    • US11862341
    • 2007-09-27
    • Yugang SunHsien-Hau Wang
    • Yugang SunHsien-Hau Wang
    • G01N7/00B28B1/20
    • G01N33/005G01N27/127Y10S977/748Y10S977/957
    • Single-walled carbon nanotubes (SWNTs) are decorated with metal nanoparticles to form high-performance flexible hydrogen sensors. The special process to form the high-performance flexible hydrogen sensors can combine a dry transfer printing technique and modification of SWNTs with palladium (Pd) nanoparticles to provide high-performance hydrogen sensors with excellent mechanical flexibility on plastic substrates. Two approaches can be used to decorate the SWNTs. One is physical deposition, such as electron beam evaporation (EBE) and the other is electrochemical deposition which can selectively grow palladium nanoparticles on the surface of the SWNTs, resulting in significantly decreasing the use of palladium. Preferably, the Pd nanoparticles are deposed on the SWNTs in a discontinuous arrangement so that the Pd nanoparticles are spaced away from each other to form individual discontinuous Pd nanoparticles rather a continuous Pd film. Advantageously, the SWNTs are arranged with substantial semiconducting pathways. Desirably, the high-performance flexible hydrogen sensors have an excellent response and recovery time, provide superior sensitivity for detecting hydrogen, and are bendable to conform to the contours of other structures.
    • 单壁碳纳米管(SWNT)用金属纳米粒子装饰以形成高性能柔性氢传感器。 形成高性能柔性氢传感器的特殊工艺可以结合干法转印技术和将单壁碳纳米管与钯(Pd)纳米粒子进行改性,以提供高性能的氢传感器,在塑料基板上具有出色的机械灵活性。 可以使用两种方法来装饰SWNT。 一种是物理沉积,例如电子束蒸发(EBE),另一种是电化学沉积,其可以选择性地在单壁奈米碳管的表面上生长钯纳米颗粒,导致钯的使用显着降低。 优选地,Pd纳米颗粒以不连续的排列被置于SWNT上,使得Pd纳米颗粒彼此间隔开以形成单独的不连续的Pd纳米颗粒而不是连续的Pd膜。 有利地,SWNT布置有大量的半导体通路。 理想地,高性能柔性氢传感器具有优异的响应和恢复时间,为检测氢提供优异的灵敏度,并且可弯曲以符合其他结构的轮廓。
    • 7. 发明授权
    • High-performance flexible hydrogen sensors
    • 高性能柔性氢传感器
    • US07818993B2
    • 2010-10-26
    • US11862341
    • 2007-09-27
    • Yugang SunHsien-Hau Wang
    • Yugang SunHsien-Hau Wang
    • G01N7/00
    • G01N33/005G01N27/127Y10S977/748Y10S977/957
    • Single-walled carbon nanotubes (SWNTs) are decorated with metal nanoparticles to form high-performance flexible hydrogen sensors. The special process to form the high-performance flexible hydrogen sensors can combine a dry transfer printing technique and modification of SWNTs with palladium (Pd) nanoparticles to provide high-performance hydrogen sensors with excellent mechanical flexibility on plastic substrates. Two approaches can be used to decorate the SWNTs. One is physical deposition, such as electron beam evaporation (EBE) and the other is electrochemical deposition which can selectively grow palladium nanoparticles on the surface of the SWNTs, resulting in significantly decreasing the use of palladium. Preferably, the Pd nanoparticles are deposed on the SWNTs in a discontinuous arrangement so that the Pd nanoparticles are spaced away from each other to form individual discontinuous Pd nanoparticles rather a continuous Pd film. Advantageously, the SWNTs are arranged with substantial semiconducting pathways. Desirably, the high-performance flexible hydrogen sensors have an excellent response and recovery time, provide superior sensitivity for detecting hydrogen, and are bendable to conform to the contours of other structures.
    • 单壁碳纳米管(SWNT)用金属纳米粒子装饰以形成高性能柔性氢传感器。 形成高性能柔性氢传感器的特殊工艺可以结合干法转印技术和将单壁碳纳米管与钯(Pd)纳米粒子进行改性,以提供高性能的氢传感器,在塑料基材上具有出色的机械灵活性。 可以使用两种方法来装饰SWNT。 一种是物理沉积,例如电子束蒸发(EBE),另一种是电化学沉积,其可以选择性地在单壁奈米碳管的表面上生长钯纳米颗粒,导致钯的使用显着降低。 优选地,Pd纳米颗粒以不连续的排列被置于SWNT上,使得Pd纳米颗粒彼此间隔开以形成单独的不连续的Pd纳米颗粒而不是连续的Pd膜。 有利地,SWNT布置有大量的半导体通路。 理想地,高性能柔性氢传感器具有优异的响应和恢复时间,为检测氢提供优异的灵敏度,并且可弯曲以符合其他结构的轮廓。