The Mechanism for the Thermally Driven Self-Assembly of Pyrazine into Ordered Lines on Si(100)
Publication in refereed journal

香港中文大學研究人員

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摘要The chemisorption of pyrazine on Si(100) is a unique and experimentally demonstrated example for the growth of an ordered ID line of organic molecules on a very reactive silicon surface. Two key factors are identified, using first principles calculations, as being responsible for this remarkable process. First, van der Waals interaction between pyrazine and Si(100) varies considerably depending on the orientation of a pyrazine molecule, which opens up a significant gap in the activation barriers and makes the adsorption selective. Second, the presence of multiple reaction channels at elevated temperature could actually facilitate the self-assembly of adsorbed molecules into ordered structure, due to the presence of a cooperative effect. Consideration of these two factors should be useful in the search for other organic molecules to grow 1D lines on clean silicon surfaces.
著者Ng WKH, Sun ST, Liu JW, Liu ZF
期刊名稱Journal of Physical Chemistry C
出版年份2013
月份8
日期1
卷號117
期次30
出版社AMER CHEMICAL SOC
頁次15749 - 15753
國際標準期刊號1932-7447
語言英式英語
Web of Science 學科類別Chemistry; Chemistry, Physical; CHEMISTRY, PHYSICAL; Materials Science; Materials Science, Multidisciplinary; MATERIALS SCIENCE, MULTIDISCIPLINARY; Nanoscience & Nanotechnology; NANOSCIENCE & NANOTECHNOLOGY; Science & Technology - Other Topics

上次更新時間 2020-29-10 於 00:17