Photoelectron and Absorption Spectroscopy Studies of Metal-Free Phthalocyanine on Au(111): Experiment and Theory
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- 作者：Masumeh-Nina Shariati ; Johann L眉der ; Ieva Bidermane ; Sareh Ahmadi ; Emmanuelle G枚thelid ; P氓l Palmgren ; Biplab Sanyal ; Olle Eriksson ; Maria Novella Piancastelli ; Barbara Brena ; Carla Puglia
- 刊名：The Journal of Physical Chemistry C
- 出版年：2013
- 出版时间：April 11, 2013
- 年：2013
- 卷：117
- 期：14
- 页码：7018-7025
- 全文大小：394K
- 年卷期：v.117,no.14(April 11, 2013)
- ISSN：1932-7455
文摘
The adsorption of monolayers and multilayers of metal-free phthalocyanine molecules on the Au(111) (鈭? 脳 22) reconstructed surface has been investigated by X-ray photoelectron spectroscopy (XPS) and X-ray absorption spectroscopy (XAS). Our results for the monolayer show that the molecules are arranged tightly onto the surface with their molecular plane parallel to it. In addition, the X-ray absorption spectra of the monolayer have been modeled by density functional theory, which could enlighten new aspect of the interaction between molecules and substrate. The XAS results evidence that also in the multilayer the molecules keep the orientation with the molecular plane parallel to the surface. These results are discussed in the framework of molecule鈥搈olecule/molecule鈥揳dsorbate interactions.