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Transition of electrical conductivity in carbon nanotube/silver particle composite buckypapers

Transition of electrical conductivity in carbon nanotube/silver particle composite buckypapers
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摘要 The electrical conductivity of carbon nanotube buckypapers can be dramatically increased by incorporation of silver particles contained in a commercial silver paste.Two methods,co-dispersion during the production of buckypaper and surface coating on a preformed buckypaper,were used to prepare composite buckypapers.The two types of composite buckypapers exhibited very different electrical conductivity profiles.The composite buckypapers prepared by the surface coating method showed a distinct step transition in electrical conductivity at 3 vol%silver content,leading to a 15-fold improvement at 6%silver content.The composite buckypapers prepared by the co-dispersion method showed a gradual change in electrical conductivity with increasing silver particle content,resulting in a five-fold improvement at12%silver content.Surface and sectional morphologies of the two types of composite buckypapers were examined and related to their electrical conductivity profiles. The electrical conductivity of carbon nanotube buckypapers can be dramatically increased by incorporation of silver particles contained in a commercial silver paste.Two methods,co-dispersion during the production of buckypaper and surface coating on a preformed buckypaper,were used to prepare composite buckypapers.The two types of composite buckypapers exhibited very different electrical conductivity profiles.The composite buckypapers prepared by the surface coating method showed a distinct step transition in electrical conductivity at 3 vol%silver content,leading to a 15-fold improvement at 6%silver content.The composite buckypapers prepared by the co-dispersion method showed a gradual change in electrical conductivity with increasing silver particle content,resulting in a five-fold improvement at12%silver content.Surface and sectional morphologies of the two types of composite buckypapers were examined and related to their electrical conductivity profiles.
作者 Fenghua Su Menghe Miao
机构地区 School of Mechanical and Automotive Engineering CSIRO Materials Science and Engineering
出处 《Particuology》 SCIE EI CAS CSCD 2014年第6期15-21,共7页 颗粒学报（英文版）
关键词 Carbon nanotubes BUCKYPAPER Electrical conductivity Carbon nanotubes Buckypaper Electrical conductivity
分类号 TB383.1 [一般工业技术—材料科学与工程] TB333 [一般工业技术—材料科学与工程]
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Particuology
2014年 第6期

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