کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9595610 | 1395944 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural transition of pentacene monolayer on Ga bilayer: From brick-wall structure to herringbone pattern of molecular dimers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Utilizing the substrate of Ga bilayer grown on Si(1Â 1Â 1)-â3Â ÃÂ â3-Ga, we have investigated the structural transition of pentacene monolayer induced by moderate annealing. Short-range ordering has been observed in the monolayer pentacene deposited at room temperature. Annealing the sample at â¼350Â K produced ordered pentacene monolayer with the “brick-wall” adsorption pattern. The STM images with sub-molecular resolution revealed that the orbital symmetry of the HOMO is reduced from D2h to C2v, due to the substrate-molecule interaction, while the deeper HOMO-1 orbital remains intact. Further annealing at â¼400Â K led to the formation of molecular dimers as well as the structural transition from “brick-wall” packing to “herringbone” pattern.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 579, Issue 1, 20 March 2005, Pages 80-88
Journal: Surface Science - Volume 579, Issue 1, 20 March 2005, Pages 80-88
نویسندگان
Jun-Zhong Wang, Ke-Hui Wu, Wei-Sheng Yang, Xing-Jun Wang, J.T. Sadowski, Y. Fujikawa, T. Sakurai,