Programmed High‐Hole‐Mobility Supramolecular Polymers from Disk‐Shaped Molecules |
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| Authors: | Wei Zhang Kenji Ochi Michiya Fujiki Masanobu Naito Masaaki Ishikawa Kei‐ichi Kaneto Wataru Takashima Akinori Saeki Shu Seki |
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| Affiliation: | 1. Graduate School of Materials Science, Nara Institute of Science and Technology, 8916‐5, Takayama, Ikoma, Nara, 630–0036 (Japan);2. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzou, 215123 (China);3. Department of Biological Functions and Engineering, Kyushu Institute of Technology, Graduate School of Life Sciences and Systems Engineering, 3–4, Hibikino, Wakamatsu‐ku, Kitakyushu, 808–0196 (Japan);4. Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 8–1 Mihogaoka, Ibaraki, Osaka, 567–0047 (Japan) |
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| Abstract: | In this paper a simple, casting solution technique for the preparation of two‐dimensional (2D) arrays of very‐high molecular weight (MW) 1D‐Pc supramolecular inorganic polymers is described. The soluble fluoroaluminium tetra‐tert‐butylphthalocyanine (ttbPcAlF) is synthesized and characterized, which can be self‐assembled to form 2D arrays of very‐high‐MW 1D‐Pc supramolecular inorganic polymers. High‐resolution transmission electron microscopy (HRTEM) demonstrates that the 1D‐ttbPcAlF, having a cofacial ring spacing of ～0.36 nm and an interchain distance of ～1.7 nm, self‐assembles into 2D‐nanosheets (～140 nm in length, ～20 nm in width, and equivalent to MW of 3.2 × 105 g mol?1). The film cast from a 1,2‐dichloroethane (DCE) solution shows a minimum hole‐mobility of ～0.3 cm2 V?1 s?1 at room temperature by flash‐photolysis time‐resolved microwave conductivity (TRMC) measurements and a fairly high dark dc‐conductivity of ～1 × 10?3 S cm?1. |
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| Keywords: | hierarchical structures nanowires polymorphism self‐assembly |
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