Exploration and Optical Assessment of Mesostable Mesoscopic Structure

介稳态介观结构的探索和光学评估

• 批准号: 23510118
• 负责人: TOMIOKA Akihiro
• 金额: $ 3.66万
• 依托单位: Osaka Electro-Communication University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23510118/
• 关键词: 光物性; Mesoscopic Structure; Organic Dye; Laser Processing; Droplet; Hydrophilic; 色素会合体; レーザーアブレーション; 脱濡れ法; 親水性基板; 液滴; 準安定; 発光性; メゾスコピック構造; 溶液プロセス; 脱濡れ過程; 液相レーザーアブレーション

Laser processing of microdroplets suspended in poor solvent has successfully produced nanoparticles of organic dye polymer without damage to optical properties, with reliable selection of 50nm through 500nm diameter. Resulting monodispersed nanoparticle suspension is useful as material ink to draw pixel patterns on solid or flexible substrates via emerging printing technology for prospective ultrathin flat panel display application.Polyfluorene, with hydrophobic sidechain, did not show energy level change, whereas MEHPPV, with polar sidechain, exhibited blueshift both in photoabsorption and photoemission, not depending on the nanoparticle diameter, which excludes the possible origin of exciton quantum mechanical confinement within nanoparticles. This nondestructive visible laser processing of microdroplets is a promising method to efficiently produce dye polymer nanoparticles with optical responsiveness intact.

用激光加工悬浮在差溶剂中的微滴，成功制备出有机染料聚合物纳米颗粒，且光学性能不受损害，直径可选范围在50nm ~ 500nm之间。由此产生的单分散纳米颗粒悬浮液可作为材料墨水，通过新兴的印刷技术在固体或柔性基材上绘制像素图案，用于超薄平板显示应用。具有疏水侧链的聚芴没有表现出能级变化，而具有极性侧链的MEHPPV在光吸收和光发射中都表现出蓝移，不依赖于纳米颗粒直径，这排除了纳米颗粒内部激子量子力学约束的可能起源。这种无损可见激光加工微滴是一种很有前途的方法，可以有效地生产出具有完整光学响应性的染料聚合物纳米颗粒。

项目成果

Blue-Shifted Photoluminescence of MEHPPV Nanoparticles Fabricated by a Novel Visible-Laser Solution-Droplet Processing

通过新型可见激光溶液液滴处理制造的 MEHPPV 纳米颗粒的蓝移光致发光

• 发表时间: 2013
• 作者: A. Tomioka;K. Takada and M. Kawabata
• 通讯作者: K. Takada and M. Kawabata

Blue-Shifted Photoluminescence of MEHPPV Polymer Attained by a Novel Visible Laser

通过新型可见激光实现 MEHPPV 聚合物的蓝移光致发光

• 发表时间: 2013
• 作者: 沼波 圭邦;上原 伸夫;松浦 寛;吉田蔵，清水得夫，上原伸夫;A. Tomioka and K. Takada
• 通讯作者: A. Tomioka and K. Takada

Solution-Phase Laser Processing of Pi-Conjugated Polymers: Switching Between Different Molecular States

Pi 共轭聚合物的溶液相激光加工：不同分子状态之间的切换

• DOI: 10.1088/1742-6596/358/1/012012
• 发表时间: 2012
• 期刊: J. Phys.: Conf. Ser.
• 作者: Ely Aprilia;Haruki Kato;Junpei Gotou;Shinya Haraguchi;Suprijadi;Tatsuki Oda;Kouhei Takada and Akihiro Tomioka
• 通讯作者: Kouhei Takada and Akihiro Tomioka

Blue-Shifted Photoluminescence of MEHPPV Polymer Attained by a Novel Visible Laser Solution-Phase Processing

通过新型可见激光溶液相处理实现 MEHPPV 聚合物的蓝移光致发光

• 发表时间: 2013
• 作者: A. Tomioka;K. Takada and M. Kawabata;上原伸夫，小川陽;A. Tomioka and K. Takada
• 通讯作者: A. Tomioka and K. Takada

Solution-Phase Laser Processing of -Conjugated Polymers: Switching Between Different Molecular States

溶液相激光加工

• 发表时间: 2011
• 作者: A. Tomioka;T. Takeuchi;K. Takada;K. Iwamoto and E. Tanaka;K. Takada and A. Tomioka
• 通讯作者: K. Takada and A. Tomioka