Molecular Orientation and Ordering during Initial Growth of Copper Phthalocyanine on Si(111)

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• 作者：Li Wang ; Dongchen Qi ; Lei Liu ; Shi Chen ; Xingyu Gao ; Andrew T. S. Wee
• 刊名：Journal of Physical Chemistry C
• 出版年：2007
• 出版时间：March 1, 2007
• 年：2007
• 卷：111
• 期：8
• 页码：3454 - 3458
• 全文大小：213K
• 年卷期：v.111,no.8(March 1, 2007)
• ISSN：1932-7455

文摘

The molecular orientation and order in the initial growth of copper phthalocyanine on Si(111) was investigatedin situ by angular-dependent X-ray absorption spectroscopy. A transition from lying-down to standing-upconfiguration occurs in less than one monolayer. After the Si surface is passivated by a monolayer of themolecules, only the standing-up structure persists in subsequent growth. The molecular film also exhibits anorder-disorder-order transition in the distribution of molecular tilt angle during growth. These transitionsare related to the changes of interactions in the system at different stages.