中国物理B ›› 2010, Vol. 19 ›› Issue (6): 67101-067101.doi: 10.1088/1674-1056/19/6/067101

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Electric dipolar interaction assisted growth of single crystalline organic thin films

张余洋1, 胡昊1, 鲍丽宏1, 潘理达1, 唐卫1, 李果1, 杜世萱1, 沈健1, 高鸿钧1, 蔡金明2   

  1. (1)Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; (2)Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;Materials Sciences and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
  • 收稿日期:2009-11-11 出版日期:2010-06-15 发布日期:2010-06-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No.~10774176), and the National Basic Research Program of China (Grant No.~2006CB806202).

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)   

  1. 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
  • Received:2009-11-11 Online:2010-06-15 Published:2010-06-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No.~10774176), and the National Basic Research Program of China (Grant No.~2006CB806202).

摘要: 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.

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.

Key words: electric dipolar interaction, organic thin films, diffusion limited aggregation model

中图分类号:  (Nucleation and growth)

  • 68.55.A-
68.37.Ps (Atomic force microscopy (AFM)) 73.61.Ph (Polymers; organic compounds) 81.15.-z (Methods of deposition of films and coatings; film growth and epitaxy)