Control of Crystal Morphology of Aromatic Electron Donors and Acceptors for Organic Electronics

概要

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Low-molar-mass organic compounds can form oriented crystal fibers on various substrates by a simple casting technique. A dilute solution of an aromatic organic compound, such as a tetrathiofulvalene derivative, an annulated aromatic such as tetracene, or a perylene diimid, is cast on a substrate, and the solvent is allowed to evaporate while rolling a glass bar over the substrate. Because the crystal formation takes place at the solution edge, crystals grow in the roller direction. Optical microscopy, fluorescence microspectrometry, and scanning nearfield optical microscopy were used to characterize the resulting fibers and crystals. Casting on interdigitated electrodes enabled us to measure conductivity and field effect transistors in these oriented crystals.
Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
2008-02-25