Preparation and Luminescence Properties of Organic Phosphorescent Nanoparticles
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概要
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Organic phosphorescent nanoparticles, which have a host--guest-type structure and show photosensitized phosphorescence, were successfully prepared by a reprecipitation method. Concentration quenching, which is disadvantage for organic nanophosphors, was efficiently suppressed with a host--guest-type structure widely used in organic light-emitting diodes. The study of luminescence properties revealed that the host material acts as a photosensitizer leading to the phosphorescence of the guest materials. Depending on the guest material, organic phosphorescent nanoparticles showed emission spectra of blue, green, and red. By adjusting the mixing ratio of phosphorescent nanoparticle dispersion liquids, the emission spectrum was tunable and white luminescence was observed.
- 2012-02-25
著者
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Nakanishi Hachiro
Institute For Chemical Reaction Science Tohoku University
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Kasai Hitoshi
Institute For Multidisciplinary Research For Advanced Materials Tohoku University
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Nakanishi Hachiro
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
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Miyashita Yousuke
Analysis Technology Center, Research & Development Management Headquarters, FUJIFILM Corporation, Minamiashigara, Kanagawa 250-0193, Japan
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Oikawa Hidetoshi
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
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Oikawa Hidetoshi
Institute for Chemical Reaction Science, Tohoku University, Aoba-ku, Sendai 980-8577, Japan
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Miyashita Yousuke
Analysis Technology Center, Research and Development Management Headquarters, FUJIFILM Corporation, Minamiashigara, Kanagawa 250-0193, Japan
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Horino Shinichi
Analysis Technology Center, Research and Development Management Headquarters, FUJIFILM Corporation, Minamiashigara, Kanagawa 250-0193, Japan
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