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Seiki N, Shoji Y, Kajitani T, et al. Organic thin films. Rational synthesis of organic thin films with exceptional long-range structural integrity. Science. 2015;348(6239):1122-6doi: 10.1126/science.aab1391.
Seiki, N., Shoji, Y., Kajitani, T., Ishiwari, F., Kosaka, A., Hikima, T., Takata, M., Someya, T., & Fukushima, T. (2015). Organic thin films. Rational synthesis of organic thin films with exceptional long-range structural integrity. Science (New York, N.Y.), 348(6239), 1122-6. https://doi.org/10.1126/science.aab1391
Seiki, Noriya, et al. "Organic thin films. Rational synthesis of organic thin films with exceptional long-range structural integrity." Science (New York, N.Y.) vol. 348,6239 (2015): 1122-6. doi: https://doi.org/10.1126/science.aab1391
Seiki N, Shoji Y, Kajitani T, Ishiwari F, Kosaka A, Hikima T, Takata M, Someya T, Fukushima T. Organic thin films. Rational synthesis of organic thin films with exceptional long-range structural integrity. Science. 2015 Jun 05;348(6239):1122-6. doi: 10.1126/science.aab1391. PMID: 26045433.
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Science. 2015 Jun 05;348(6239):1122-6. doi: 10.1126/science.aab1391.

Organic thin films. Rational synthesis of organic thin films with exceptional long-range structural integrity.

Science (New York, N.Y.)

Noriya Seiki, Yoshiaki Shoji, Takashi Kajitani, Fumitaka Ishiwari, Atsuko Kosaka, Takaaki Hikima, Masaki Takata, Takao Someya, Takanori Fukushima

Affiliations

  1. Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
  2. Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan. [email protected] [email protected].
  3. Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan. Bio-Harmonized Electronics Project, Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency (JST), 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
  4. RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan.
  5. Bio-Harmonized Electronics Project, Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency (JST), 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
  6. Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan. Bio-Harmonized Electronics Project, Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency (JST), 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. [email protected] [email protected].

PMID: 26045433 DOI: 10.1126/science.aab1391

Abstract

Highly oriented, domain-boundary-free organic thin films could find use in various high-performance organic materials and devices. However, even with state-of-the-art supramolecular chemistry, it is difficult to construct organic thin films with structural integrity in a size regime beyond the micrometer length scale. We show that a space-filling design, relying on the two-dimensional (2D) nested hexagonal packing of a particular type of triptycene, enables the formation of large-area molecular films with long-range 2D structural integrity up to the centimeter length scale by vacuum evaporation, spin-coating, and cooling from the isotropic liquid of the triptycene. X-ray diffraction analysis and microscopic observations reveal that triptycene molecules form a completely oriented 2D (hexagonal triptycene array) + 1D (layer stacking) structure, which is key for the long-range propagation of structural order.

Copyright © 2015, American Association for the Advancement of Science.

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