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Nano-level wettings of platinum and palladium on single-walled carbon nanotubes

机译:单壁碳纳米管上铂和钯的纳米级润湿

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摘要

Pt and Pd evaporation experiments were performed on single-walled carbon nanotubes (CNTs) to explore the Pt and Pd wetting characteristics on the surface of a CNT via ultrahigh vacuum scanning tunneling microscopy (UHV-STM) at low temperature. Differences in the size were noted between Pt and Pd nano-clusters as the coverage increased. Pt clusters were formed discretely on the groove sites in double-stranded CNTs. On the other hand, Pd clusters were coated uniformly on the CNTs due to the size of the cluster, which was very small. Hence, Pd is verified to be feasible for wetting on CNTs. It can provide low contact resistance in transport measurements.
机译:在单壁碳纳米管(CNT)上进行了Pt和Pd蒸发实验,以通过低温下的超高真空扫描隧道显微镜(UHV-STM)探索CNT表面上的Pt和Pd润湿特性。随着覆盖率的增加,Pt和Pd纳米簇之间的尺寸有所不同。 Pt团簇离散形成在双链CNT的沟槽位置上。另一方面,由于簇的尺寸很小,Pd簇被均匀地涂覆在CNT上。因此,证实了Pd对于在CNT上润湿是可行的。它可以在运输测量中提供低接触电阻。

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