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    Anisotropic growth of organic semiconductor based on mechanical contrast of pre-patterned monolayer

    Year: 2010

    Journal: Soft Matter, 2010, 6 (21), 5302-5304, 20131009

    Authors: Juanyuan Hao, Nan Lu, Liqiang Li, Michael Hirtz, Liguo Gao, Wenchong Wang, Chuan Du, Harald Fuchs, Lifeng Chi

    Organizations: State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China; Physikalisches Institut and Center for Nanotechnology (CeNTech) Westfälische Wilhelms-Universität Münster, Münster, Germany

    Site-selective anisotropic growth of perylene film is achieved by using a striped Langmuir–Blodgett (LB) monolayer as an alignment layer. The stripes significantly increase the grain size along the stripe direction due to increased diffusion length. By controlling the grain boundaries and the molecular alignment, a mobility anisotropic ratio of [similar]10 for the current flow parallel and perpendicular to the stripes has been observed.