Stochastic Single-Molecule Conductance Switching of Nitro-Substituted Oligo(phenylene–ethynylene) in Matrix of Low-Density Alkanethiol Self-Assembled Monolayers
Stochastic Single-Molecule Conductance Switching of Nitro-Substituted Oligo(phenylene–ethynylene) in Matrix of Low-Density Alkanethiol Self-Assembled Monolayers
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DOI：
10.1143/jjap.45.l840
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发表时间：
2006-08
影响因子：
1.5
通讯作者：
K. Jung;E. Hase;Yuhsuke Yasutake;Hoon-Kyu Shin;Y. Kwon;Y. Majima
中科院分区：
文献类型：
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作者：
K. Jung;E. Hase;Yuhsuke Yasutake;Hoon-Kyu Shin;Y. Kwon;Y. Majima
利用扫描隧道显微镜（STM）研究了硝基取代低聚苯乙烯（OPE）分子在辛烷硫醇（C8）、十烷硫醇（C10）和十二烷硫醇（C12）自组装单层（sam）基质中的随机单分子电导开关。通过连续STM，我们在C8 SAM的低密度条纹相和C10和C12 SAM的高密度立相中反复观察到OPE分子的随机单分子电导开关。C8、C10和C12 SAMs插入的OPE与宿主矩阵的平均视高度差分别约为11.9、4.8和4.2 Å。
The stochastic single-molecule conductance switchings of nitro-substituted oligo(phenylene–ethynylene) (OPE) molecules in three kinds of host matrices of octanethiol (C8), decanethiol (C10), and dodecanethiol (C12) self-assembled monolayers (SAMs) have been studied by scanning tunneling microscopy (STM). The stochastic single-molecule conductance switching of OPE molecules has been observed repeatedly in both the low-density striped phase of the C8 SAM and the high-density standing-up phases of the C10 and C12 SAMs by successive STM. The mean apparent height differences between the inserted OPE and the host matrices of the C8, C10, and C12 SAMs are approximately 11.9, 4.8, and 4.2 Å, respectively.