کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5350315 | 1503659 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Molecular arrangement investigation of copper phthalocyanine grown on hydrogen passivated Si(1Â 1Â 1) surfaces
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Molecular arrangement investigation of copper phthalocyanine grown on hydrogen passivated Si(1Â 1Â 1) surfaces Molecular arrangement investigation of copper phthalocyanine grown on hydrogen passivated Si(1Â 1Â 1) surfaces](/preview/png/5350315.png)
چکیده انگلیسی
Chemical, electronic and structural properties of ultra thin films of copper phthalocyanine (CuPc) grown on hydrogen passivated silicon (1 1 1) surfaces were investigated in situ by X-ray photoelectron spectroscopy (XPS), ultraviolet photoemission spectroscopy (UPS), X-ray photoelectron diffraction (XPD) and electron diffraction (LEED). The early stages of copper phthalocyanine adsorption (1-2) were characterized by the saturation of surface defects and by a flat lying disposition on the surface. Upon further CuPc coverage, the passivation of Si surfaces resulted in the molecule taking a standing position in films. The molecular packing deduced from these studies appears very close to the one in the bulk α phase of CuPc. The work function of the films was found to be decreasing during the growth and was correlated with the molecular orientation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 305, 30 June 2014, Pages 396-401
Journal: Applied Surface Science - Volume 305, 30 June 2014, Pages 396-401
نویسندگان
I. Arbi, B. Ben Hamada, A. Souissi, S. Menzli, C. Ben Azzouz, A. Laribi, A. Akremi, C. chefi,