Inducing Transient Charge State of a Single Water Cluster on Cu(111) Surface

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• 作者：Yang Guo ; Zijing Ding ; Lihuan Sun ; Jianmei Li ; Sheng Meng ; Xinghua Lu
• 刊名：ACS Nano
• 出版年：2016
• 出版时间：April 26, 2016
• 年：2016
• 卷：10
• 期：4
• 页码：4489-4495
• 全文大小：397K
• 年卷期：0
• ISSN：1936-086X

文摘

The hydrated electron on solid surface is a crucial species to interfacial chemistry. We present a joint low-temperature scanning tunneling microscopy and density functional theory investigation to explore the existence of a transient hydrated electron state induced by injecting tunneling electrons into a single water nonamer cluster on Cu(111) surface. The directional diffusion of water cluster under the Coulomb repulsive potential has been observed as evidence for the emergence of the transient hydrated electron. A critical structure transformation in water cluster for the emergence of hydrated electron has been identified. A charging mechanism has been proposed based on density functional theory calculation and scanning tunneling microscope results.