Electric dipolar interaction assisted growth of single crystalline organic thin films

Journal Article · Fri Jan 01 00:00:00 EST 2010 · Chinese Physics B

DOI:https://doi.org/10.1088/1674-1056/19/6/067101· OSTI ID:1050386

Jin-ming, Cai ^[1]; Yu-Yang, Zhang ^[2]; Hao, Hu ^[2]; Li-Hong, Bao ^[2]; Li-Da, Pan ^[2]; Wei, Tang ^[2]; Guo, Li ^[2]; Shi-Xuan, Du ^[2]; Jian, Shen ^[1]; Hong-Jun, Gao ^[2]

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1. Material Science and Technology Division, Oak Ridge National Laboratory
2. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

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.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1050386
• Journal Information: Chinese Physics B, Vol. 19, Issue 6; ISSN 1674-1056
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DIFFUSION
ELECTRIC DIPOLES
THIN FILMS