中国物理B ›› 2013, Vol. 22 ›› Issue (10): 107202-107202.doi: 10.1088/1674-1056/22/10/107202

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

A shortcut for determining growth mode

R. A. Rehmana b, 蔡亦良a, 张寒洁a, 吴珂a, 窦卫东a, 李海洋a, 何丕模a, 鲍世宁a   

  1. a Physics Department, Zhejiang University, Hangzhou 310027, China;
    b Physics Department, Forman Christian College University, Lahore 54600, Pakistan
  • 收稿日期:2013-02-07 修回日期:2013-04-26 出版日期:2013-08-30 发布日期:2013-08-30
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grants Nos. 10974172, 10774129, and 61106131) and the Fundamental Research Funds for the Central Universities.

A shortcut for determining growth mode

R. A. Rehmana b, Cai Yi-Liang (蔡亦良)a, Zhang Han-Jie (张寒洁)a, Wu Ke (吴珂)a, Dou Wei-Dong (窦卫东)a, Li Hai-Yang (李海洋)a, He Pi-Mo (何丕模)a, Bao Shi-Ning (鲍世宁)a   

  1. a Physics Department, Zhejiang University, Hangzhou 310027, China;
    b Physics Department, Forman Christian College University, Lahore 54600, Pakistan
  • Received:2013-02-07 Revised:2013-04-26 Online:2013-08-30 Published:2013-08-30
  • Contact: R. A. Rehman E-mail:ateeq215@gmail.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grants Nos. 10974172, 10774129, and 61106131) and the Fundamental Research Funds for the Central Universities.

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摘要： Thin and thick films of iron phthalocyanine (FePc) molecules are deposited on a Ag (110) surface. The nature of the FePc growth and the interaction with the substrate have been studied by X-ray photoelectron spectroscopy (XPS). All of the core level spectra exhibit rigid shifts towards lower binding energies following the deposition of the organic films, each by a different magnitude. A greater change and a larger shift in the Fe2p level as compared to C1s core level reveals that the adsorbate interacts with the substrate mainly via the Fe atom, located at the center of the molecule. An increase/decrease in the intensity of C1s/Ag3d level is found to be exponentially linked to the overlayer molecular coverage. Finally, the so-called growth/decay curve indicates that FePc thin films initially develop following the FM growth mode and then transform to SK mode, resulting in 3D island aggregation.

关键词: iron phthalocyanine, silver, growth modes, X-ray photoelectron spectroscopy

Abstract: Thin and thick films of iron phthalocyanine (FePc) molecules are deposited on a Ag (110) surface. The nature of the FePc growth and the interaction with the substrate have been studied by X-ray photoelectron spectroscopy (XPS). All of the core level spectra exhibit rigid shifts towards lower binding energies following the deposition of the organic films, each by a different magnitude. A greater change and a larger shift in the Fe2p level as compared to C1s core level reveals that the adsorbate interacts with the substrate mainly via the Fe atom, located at the center of the molecule. An increase/decrease in the intensity of C1s/Ag3d level is found to be exponentially linked to the overlayer molecular coverage. Finally, the so-called growth/decay curve indicates that FePc thin films initially develop following the FM growth mode and then transform to SK mode, resulting in 3D island aggregation.

Key words: iron phthalocyanine, silver, growth modes, X-ray photoelectron spectroscopy

中图分类号:  (Polymers; organic compounds (including organic semiconductors))

  • 72.80.Le
34.20.Gj (Intermolecular and atom-molecule potentials and forces) 34.35.+a (Interactions of atoms and molecules with surfaces) 42.70.Jk (Polymers and organics)