Mapping Atomic Contact between Pentacene and a Au Surface using Scanning Tunneling Spectroscopy

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• 作者：Young Jae Song ; Kyuho Lee ; Seong Heon Kim ; Byoung-Young Choi ; Jaejun Yu ; Young Kuk
• 刊名：Nano Letters
• 出版年：2010
• 出版时间：March 10, 2010
• 年：2010
• 卷：10
• 期：3
• 页码：996-999
• 全文大小：292K
• 年卷期：v.10,no.3(March 10, 2010)
• ISSN：1530-6992

文摘

We mapped spatially varying intramolecular electronic structures on a pentacene-gold interface using scanning tunneling spectroscopy. Along with ab initio calculations based on density functional theory, we found that the directional nature of the d orbitals of Au atoms plays an important role in the interaction at the pentacene-gold contact. The gold-induced interface states are broadened and shifted by various pentacene-gold distances determined by the various registries of a pentacene molecule on a gold substrate.