Gravure printing of functional thin-film layers of side-chain-substituted poly(para-phenyleneethynylene)s (PPEs) is reported. Rheological properties of PPEs in combination with the Hansen solubility model allowed the formulation of enhanced single-component inks. Layer evaluation is performed with reflectometric thin-film recordings in an optical setup for laterally resolved large-area investigation using imaging color reflectometry. An organic light-emitting diode in a simple glass/indium tin oxide/poly(3,4ethylenedioxythiophene):poly(styrenesulfonate)/PPE/LiF-Al stack was gravure-printed from the improved ink showing excellent luminance (542 cd m(-2), U = 11.5 V) for this polymer class.
机构:Japan Sci & Technol Agcy JST, Iyoda Supra Integrated Mat Project iSIM, Exploratory Res Adv Technol ERATO, Midori Ku, 4259-S2-3 Nagatsuta, Yokohama, Kanagawa 2268503, Japan
Motoshige, Asahi
Kakinuma, Junko
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机构:Japan Sci & Technol Agcy JST, Iyoda Supra Integrated Mat Project iSIM, Exploratory Res Adv Technol ERATO, Midori Ku, 4259-S2-3 Nagatsuta, Yokohama, Kanagawa 2268503, Japan
Kakinuma, Junko
Iyoda, Tomokazu
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机构:Japan Sci & Technol Agcy JST, Iyoda Supra Integrated Mat Project iSIM, Exploratory Res Adv Technol ERATO, Midori Ku, 4259-S2-3 Nagatsuta, Yokohama, Kanagawa 2268503, Japan
Iyoda, Tomokazu
Sanji, Takanobu
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Japan Sci & Technol Agcy JST, Iyoda Supra Integrated Mat Project iSIM, Exploratory Res Adv Technol ERATO, Midori Ku, 4259-S2-3 Nagatsuta, Yokohama, Kanagawa 2268503, JapanJapan Sci & Technol Agcy JST, Iyoda Supra Integrated Mat Project iSIM, Exploratory Res Adv Technol ERATO, Midori Ku, 4259-S2-3 Nagatsuta, Yokohama, Kanagawa 2268503, Japan