発光性有機色素を含有したポリスチレン微粒子の精密合成とフォトニック結晶への応用

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  • Precise Syntheses of Luminescent Polystyrene Microparticles with Encapsulated Organic Dyes for Novel Colloidal Photonic Crystals
  • ハッコウセイ ユウキ シキソ オ ガンユウ シタ ポリスチレン ビリュウシ ノ セイミツ ゴウセイ ト フォトニック ケッショウ エ ノ オウヨウ

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Colloidal crystals (CCs) have received tremendous interest because the highly ordered self-assembly of microparticles leads to the facile fabrication of 3D-photonic crystals. So far, there have been many reports on CC films fabricated with non-luminescent microparticles such as polystyrene (PS) or silica. This situation motivated us to synthesize luminescent PS microparticles by encapsulating organic dyes for the application to novel optoelectronic devices. In this communication, we report the successful preparation of luminescent PS microparticles encapsulating two kinds of organic dyes through emulsion polymerization in the presence of sodium dodecyl sulfate. When the luminescent PS microparticles were synthesized at an appropriate molar concentration of the organic dyes, the uniform CC films exhibited unique optical properties of not only Bragg reflection, but also with efficient white-light emission under illumination with UV light. As an extension of our findings, we could observe clear white-light emission from a flexible CC film of the luminescent PS particles self-assembled on a PET sheet.

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  • 高分子論文集

    高分子論文集 75 (6), 619-624, 2018-11-25

    公益社団法人 高分子学会

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