CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Electric dipolar interaction assisted growth of single crystalline organic thin films |
Cai Jin-Ming(蔡金明)a)b), Zhang Yu-Yang(张余洋)a), Hu Hao(胡昊)a), Bao Li-Hong(鲍丽宏)a), Pan Li-Da(潘理达)a), Tang Wei(唐卫)a), Li Guo(李果)a), Du Shi-Xuan(杜世萱)a), Shen Jian(沈健)b), and Gao Hong-Jun(高鸿钧)a)† |
a Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; b Materials Sciences and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA |
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Abstract We report on a forest-like-to-desert-like pattern evolution in the growth of an organic thin film observed by using an atomic force microscope. We use a modified diffusion limited aggregation model to simulate the growth process and are able to reproduce the experimental patterns. The energy of electric dipole interaction is calculated and determined to be the driving force for the pattern formation and evolution. Based on these results, single crystalline films are obtained by enhancing the electric dipole interaction while limiting effects of other growth parameters.
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Received: 11 November 2009
Accepted manuscript online:
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PACS:
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68.55.A-
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(Nucleation and growth)
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68.37.Ps
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(Atomic force microscopy (AFM))
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73.61.Ph
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(Polymers; organic compounds)
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81.15.-z
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(Methods of deposition of films and coatings; film growth and epitaxy)
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Fund: Project supported by the National
Natural Science Foundation of China (Grant No.~10774176), and the
National Basic Research Program of China (Grant No.~2006CB806202). |
Cite this article:
Cai Jin-Ming(蔡金明), Zhang Yu-Yang(张余洋), Hu Hao(胡昊), Bao Li-Hong(鲍丽宏), Pan Li-Da(潘理达), Tang Wei(唐卫), Li Guo(李果), Du Shi-Xuan(杜世萱), Shen Jian(沈健), and Gao Hong-Jun(高鸿钧) Electric dipolar interaction assisted growth of single crystalline organic thin films 2010 Chin. Phys. B 19 067101
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