Single electron on a nanodot in a double-barrier tunneling structure observed by noncontact atomic-force spectroscopy
Single electron on a nanodot in a double-barrier tunneling structure observed by noncontact atomic-force spectroscopy
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DOI：
10.1103/physrevlett.96.016108
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发表时间：
2006-01-13
影响因子：
8.6
通讯作者：
Majima, Y
中科院分区：
文献类型：
--
作者：
Azuma, Y;Kanehara, M;Majima, Y
用非接触原子力显微镜在固定间距下观察到了双势垒隧穿结构中纳米点上的单电子。结果表明，Au包覆的悬臂梁/真空/正癸醇保护的Au纳米点/正辛醇自组装单层膜/Au基底结构的频移-电压关系偏离了理论的抛物线曲线，这是由于库仑阻塞现象引起的Au纳米点上量子化电子数的变化.
A single electron has been observed on a nanodot in a double-barrier tunneling structure by noncontact atomic-force microscopy at fixed separation. Frequency shift-voltage dependence of an Au-coated cantilever/vacuum/1-decanethiol protected Au nanodot/1-octanethiol self-assembled monolayer/Au substrate structure deviates from the theoretical parabolic curve, which is attributed to the change in the number of quantized electrons on the Au nanodot caused by the Coulomb blockade phenomena.