Photochemistry of Conjugated Polymer/Lanthanide Blends

化学系的先进材料计划支持加州大学圣巴巴拉分校获得这一奖项。研究的重点是共轭聚合物-稀土共混物的合成和表征，以及确定这些体系中的电子耦合和电荷转移反应的机理。根据该奖项，Vojislav Srdanov和Guillermo Bazan将进行超快飞秒和时间分辨光谱研究，以确定共轭聚合物与制备的混合物中的稀土元素(如Tb、Nb和Er)之间的光学和电子耦合。具体地说，该奖项将研究稀土中心共轭聚合物的光致发光和电致发光特性。聚合物的轨道能级、配体的单重态和三重态以及镧系元素的轨道能级将匹配，以实现聚合物和镧系元素的有效结合。了解不同稀土元素掺杂的共轭聚合物中能量传递反应的机理，可以为单色发光二极管、平板显示器和其他相关电光器件的发展提供动力。了解稀土金属与共轭聚合物的电荷转移反应机理，可以为单色发光二极管、平板显示器和其他相关电光器件的发展提供动力。该教育计划将整合大分子化学和光化学领域的跨学科研究和教育。

The Advanced Materials Program in the Chemistry Division supports this award to University of California Santa Barbara. The focus of the research is the synthesis and characterization of conjugated polymer-lanthanide blends and to determine mechanisms for electronic couplings and charge transfer reactions in these systems. Under this award, ultra fast femto-second and time-resolved spectroscopic studies will be carried out by Vojislav Srdanov and Guillermo Bazan to determine the optical and electronic coupling between the conjugated polymers and lanthanides such as terbium neodymium and erbium in the prepared blends. Specifically, photoluminescence and electroluminescence properties of rare earth centered conjugated polymers will be studied with this award. Orbital energy levels of the polymer, the singlet and triplet levels of the ligand, and those of the lanthanides will be matched for the efficient combination of the polymer and the lanthanide. An understanding of the mechanism for the energy transfer reactions in conjugated polymers doped with different lanthanides may provide impetus for the development of monochromatic light-emitting diodes, flat panel displays and other related electro-optic devices. An understanding of the mechanism for the charge transfer reactions in conjugated polymers with lanthanide rare-earth metals may provide impetus for the development of monochromatic light-emitting diodes, flat-panel display and other related electo-optic devices. The educational plan will integrate interdisciplinary research and education in the area of macromolecular chemistry and photochemistry.