Underlayer Growth of a Nanoporous Single Atomic Layer of Gold

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• 作者：Yang-Chun Xie ; Lin Tang ; Quanmin Guo
• 刊名：The Journal of Physical Chemistry C
• 出版年：2012
• 出版时间：March 1, 2012
• 年：2012
• 卷：116
• 期：8
• 页码：5103-5109
• 全文大小：497K
• 年卷期：v.116,no.8(March 1, 2012)
• ISSN：1932-7455

文摘

We have grown a single-layer-thick porous gold film with pore size of 1 nm. The film is created by deposition of gold atoms onto a C₆₀ covered Au(111) surface. By controlling the sample temperature at 120鈥?50 K, the deposited gold atoms are able to penetrate the molecular layer and reach the C₆₀鈥揂u(111) interface. At the interface, the gold atoms squeeze beneath some C₆₀ molecules forming single-layer-high Au islands with lateral dimensions of the order of 1 nm. C₆₀ molecules sitting directly above such a Au nanoisland are hence lifted up from the initial Au(111) substrate. The above process self-replicates leading to the formation of a single atomic layer porous gold film with pore size of 1 nm.