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	Interaction control between endohedral metallofullerene and metal substrate by introducing alkanethiol self-assembled monolayer
	Yasutake, Yuhsuke ; Shi, Zujin ; Okazaki, Toshiya ; Shinohara, Hisanori ; Majima, Yutaka
	2006
英文摘要	The interaction control between endohedral metallofullerenes and a metal substrate has been demonstrated by introducing hexanethiol, octanethiol, and decanethiol self-assembled monolayers (SAMs) as the interlayer. We observe the electric properties of terbium endohedral metallofullerenes (Tb@C82) on alkanethiol SAMs with different chain lengths by scanning tunneling microscopy (STM) and spectroscopy (STS). Based on the comparison of the high-resolution STM images of a Tb@C82 molecule on hexanethiol and octanethiol SAMs, the interaction between Tb@C82 and a hexanethiol SAM is found to be larger than that between Tb@C82 and an octanethiol SAM; this is because at 68 K, the rotational states of Tb@C82 terminate only on the hexanethiol SAM. Furthermore, we find that the tunneling current-voltage characteristics of Tb@C82 on the hexanethiol SAM show the rectifying effects that are also caused by the molecular energy level shifts of Tb@C82 molecules due to the large interaction. Copyright ? 2006 American Scientific Publishers All rights reserved.; EI; 0
语种	英语
DOI标识	10.1166/jnn.2006.034
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/328085]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Yasutake, Yuhsuke,Shi, Zujin,Okazaki, Toshiya,et al. Interaction control between endohedral metallofullerene and metal substrate by introducing alkanethiol self-assembled monolayer. 2006-01-01.

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