Study of relationship between conformation and optical properties of single chains of conjugated polymers

共轭聚合物单链构象与光学性质关系的研究

• 批准号: 20340109
• 负责人: VACHA Martin
• 金额: $ 12.81万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20340109/
• 关键词: 高分子; 液晶; 1分子計測; 共役系高分子; 高子の配座; 光学特性; 高分子の配座

Optical and photophysical properties of conjugated polymers and related systems were studied on single-molecule level in relation to their conformation and structural properties. For conjugated polymers the study revealed the relationship between conformation and exciton localization and dissociation, confirmed the existence and size of light-emitting domains in polymer chains, and found the connection between conformational dynamics and related photophysics. For non-conjugated polymers it was found that topology of individual chains is a determining factor for their diffusion properties. For single light-harvesting systems of photosynthetic bacteria the study revealed their excitonic properties and the role of structural disorder.

在单分子水平上研究了共轭聚合物及其相关体系的光学和光物理性质与其构象和结构性质的关系。对于共轭聚合物，本研究揭示了构象与激子局域化和离解的关系，证实了高分子链中发光域的存在和大小，发现了构象动力学与相关光物理之间的联系。对于非共轭聚合物，发现单链的拓扑结构是决定其扩散性能的一个因素。对于光合细菌的单个捕光系统，该研究揭示了它们的激子性质和结构无序的作用。

项目成果

Nanoscale dynamic inhomogeneities in electroluminescence of conjugated polymers

共轭聚合物电致发光的纳米级动态不均匀性

• DOI: 10.1063/1.3633226
• 发表时间: 2011
• 期刊: Journal of Applied Physics
• 影响因子: 3.2
• 作者: Yuichiro Asai;Natsuko Motokawa;Kazuya Kubo;Hitoshi Miyasaka;Masahiro Yamashita;Hatano T
• 通讯作者: Hatano T

Absorption linear dichroism directly measured on a single light harvesting complex of photosynthetic bacteria(Oral)

直接测量光合细菌的单个光捕获复合物的吸收线性二色性（口服）

• 发表时间: 2010
• 作者: M. Vacha;S. Furumaki;F. Vacha;J. Psencik;S. Habuchi
• 通讯作者: S. Habuchi

Molecular weight dependence of emission intensity and emitting sites distribution within single conjugated polymer molecules

• DOI: 10.1039/c0cp01729a
• 发表时间: 2011-01-01
• 期刊: PHYSICAL CHEMISTRY CHEMICAL PHYSICS
• 影响因子: 3.3
• 作者: Habuchi, Satoshi;Onda, Suguru;Vacha, Martin
• 通讯作者: Vacha, Martin

Fluorescence-detected three-dimensional linear dichroism: A method to determine absorption anisotropy in single sub-wavelength size nanoparticles

荧光检测三维线性二色性：一种确定单个亚波长尺寸纳米粒子吸收各向异性的方法

• 发表时间: 2010
• 作者: Shu Furumaki;S. Habuchi;M. Vacha
• 通讯作者: M. Vacha

Complete Suppression of Blinking and Reduced Photobleaching in Single MEH-PPV Chains in Solution

• DOI: 10.1021/jz2012512
• 发表时间: 2011-10
• 期刊: Journal of Physical Chemistry Letters
• 影响因子: 5.7
• 作者: Suguru Onda;H. Kobayashi;T. Hatano;Shu Furumaki;S. Habuchi;M. Vacha