CAREER: Ultrafast studies of exciton transport in conjugated polymers

职业：共轭聚合物中激子输运的超快研究

• 批准号: 0239120
• 负责人: Valeria Kleiman
• 金额: $ 49.97万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-02-15 至 2009-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0239120&HistoricalAwards=false
• 关键词: CAREER; Ultrafast; studies; exciton; transport

In this CAREER project funded by the Experimental Physical Chemistry Program of the Chemistry Division, Kleiman will study poly-conjugated molecules and their photo-physical properties using both ultrafast experiments and quantum chemical calculations in order to understand novel properties that arise from the macromolecule as a whole. This program involves collaborative work aimed at the synthesis of hyper-branched polymers, dendritic macromolecules and charged oligomers. Ultrafast spectroscopy is used to examine energy transport in conjugated polymers whose electronic and optical properties can be chemically controlled at the molecular level. Theoretical calculations will provide an understanding of the experimental data and allow the prediction of measurable properties and delineation of a fundamental model of energy-transport. The PI will make an intensive effort to involve young women in an area of chemistry where they are vastly underrepresented. This will be accomplished via conscientious recruiting, mentoring and encouragement of both undergraduate and graduate students. Promotion and expansion of an exchange program with undergraduate students from Latin-American countries will also be pursued. Community outreach activities in grades K-12 will showcase the essential role of female scientists in today's life.New materials with novel photophysical properties are crucial for developing revolutionary molecular-photonic and optoelectronic components. Conjugated polymers have emerged as materials exhibiting valuable properties in optical sensing, energy transport, and light harvesting. This research program is highly interdisciplinary, dealing with synthetic organic, polymer, material-science, theoretical, and nonlinear-optical research. The results of these investigations will provide an understanding of the electronic and photo-physical characteristics that lead to unique optical properties useful for optoelectronics, sensing and energy harvesting.

在这个由化学部实验物理化学计划资助的职业项目中，Kleiman将使用超快实验和量子化学计算来研究多共轭分子及其光物理性质，以了解从大分子整体产生的新特性。 该计划涉及旨在合成超支化聚合物，树枝状大分子和带电低聚物的合作工作。 超快光谱用于研究共轭聚合物中的能量传输，其电子和光学性质可以在分子水平上进行化学控制。 理论计算将提供对实验数据的理解，并允许预测可测量的属性和描绘能量传输的基本模型。 PI将做出巨大努力，让年轻女性参与化学领域，因为她们在化学领域的代表性远远不足。 这将通过认真招聘，指导和鼓励本科生和研究生来实现。 还将促进和扩大与拉丁美洲国家本科生的交流计划。 K-12年级的社区外展活动将展示女性科学家在当今生活中的重要作用。具有新颖物理特性的新材料对于开发革命性的分子光子和光电元件至关重要。 共轭聚合物已成为在光学传感、能量传输和光捕获方面表现出宝贵性能的材料。 该研究计划是高度跨学科的，涉及合成有机，聚合物，材料科学，理论和非线性光学研究。 这些研究的结果将提供对电子和光物理特性的理解，这些特性导致对光电子学，传感和能量收集有用的独特光学特性。