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首页> 外文期刊>Physical chemistry chemical physics: PCCP >Electrochemically deposited Pd islands on an organic surface: the presence of Coulomb blockade in STM I( V) curves at room temperature
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Electrochemically deposited Pd islands on an organic surface: the presence of Coulomb blockade in STM I( V) curves at room temperature

机译:在有机表面上电化学沉积的Pd岛:室温下STM I(V)曲线中存在库仑阻塞

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摘要

Palladium islands with a thickness of a few monolayers were deposited on top of a self-assembled monolayer (SAM) fabricated from 4-mercaptopyridine.In the I(V) curves obtained using the scanning tunneling microscope (STM) clearly the signature of Coulomb blockade is observed,explicitly demonstrating that these islands are coupled to the underlying gold substrate only via a tunneling barrier; this spectroscopic feature also allows to distinguish the palladium islands from similar morphological features present on the gold substrate prior to palladium deposition.
机译:在由4-巯基吡啶制得的自组装单分子层(SAM)的顶部沉积厚度为几层单分子层的钯岛。在使用扫描隧道显微镜(STM)获得的I(V)曲线中,清楚地表明了库仑阻断的标志观察到,明确表明这些岛仅通过隧道势垒与下面的金基底耦合;该光谱特征还允许将钯岛与钯沉积之前金基底上存在的相似形态特征区分开。

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