Electronic Structure of FePc and Interface Properties on Ag(111) and Au(100)
Electronic Structure of FePc and Interface Properties on Ag(111) and Au(100)
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DOI：
10.1021/jp302233e
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发表时间：
2012-05-24
影响因子：
3.7
通讯作者：
Chasse, T.
中科院分区：
文献类型：
--
作者：
Petraki, F.;Peisert, H.;Chasse, T.
利用光激发电子能谱（XPS和UPS）和x射线吸收光谱（XAS或NEXAFS）研究了酞菁铁（FePc）的电子结构和与Ag（111）和Au（100）的界面性质。用共振光发射技术鉴定了具有铁特征的价带结构。界面处相互作用的强度和性质显然取决于衬底。酞菁的中心金属原子在Ag（111）上发生了强烈的相互作用，而FePc在Au（100）上的电子情况没有明显的变化。谐振光发射数据表明，FePc在Ag（111）上形成的接近费米能级的界面态是由fe3维态和衬底相关态之间的相互作用决定的。另一方面，FePc的氮原子也参与了相互作用。
The electronic structure of iron phthalocyanine (FePc) and interface properties on Ag(111) and Au(100) are investigated by photoexcited electron spectroscopies: photoemission (XPS and UPS) and X-ray absorption spectroscopy (XAS or NEXAFS). Valence band structures with Fe character were identified using resonant photoemission. The strength and nature of the interaction at the interface depend clearly on the substrate. A strong interaction of the central metal atom of the phthalocyanine occurs on Ag(111), whereas no significant changes of the electronic situation were found for FePc on Au(100). Resonant photoemission data show that for FePc on Ag(111) the formed interface states close to the Fermi level are determined by the interaction between Fe 3d states and substrate related states. On the other hand, also the nitrogen atom of FePc is involved in the interaction.