In situ scanning tunneling microscopy investigation of subphthalocyanine and subnaphthalocyanine adlayers on a Au(111) electrode.
In situ scanning tunneling microscopy investigation of subphthalocyanine and subnaphthalocyanine adlayers on a Au(111) electrode.
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DOI：
10.1021/la3042742
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发表时间：
2013-01
期刊：
影响因子：
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通讯作者：
Jing-Ying Gu;Bo Cui;Ting Chen;Hui-Juan Yan;Dong Wang;L. Wan
中科院分区：
文献类型：
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作者：
Jing-Ying Gu;Bo Cui;Ting Chen;Hui-Juan Yan;Dong Wang;L. Wan
利用电化学扫描隧道显微镜（ECSTM）研究了亚酞菁（SubPc）和亚萘酞菁（SubNc）在Au（111）表面的吸附行为。在550 mV时，在可逆氢电极（RHE）上观察到两种有序的吸附层结构。在两种结构中，SubPc分子在Au（111）表面均呈Cl-向下吸附构型。有序吸附层存在于350至650 mV之间的电位范围内。SubNc分子以比SubPc分子更无序的模式吸附在Au（111）上。本工作为理解SubPc和SubNc在Au（111）表面的电位控制吸附行为提供了直接证据。
The adsorption behaviors of subphthalocyanine (SubPc) and subnaphthalocyanine (SubNc) on the Au(111) surface were investigated by electrochemical scanning tunneling microscopy (ECSTM). Two types of ordered adlayer structures of SubPc were observed at 550 mV versus the reversible hydrogen electrode (RHE). All of the SubPc molecules take the Cl-down adsorption configuration on Au(111) in both structures. The ordered adlayers exist in the potential range between 350 and 650 mV. The SubNc molecules adsorb on Au(111) in a less-ordered pattern than the SubPc molecules. The present work provides direct evidence for understanding the potential-controlled adsorption behaviors of SubPc and SubNc on the Au(111) surface.