Coherent and Incoherent Energy Transfer in Conjugated Molecules

共轭分子中的相干和非相干能量转移

• 批准号: 1058638
• 负责人: Valeria Kleiman
• 金额: $ 45万
• 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: 2011
• 资助国家: 美国
• 起止时间: 2011-10-01 至 2016-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1058638&HistoricalAwards=false
• 关键词: Coherent; Incoherent; Energy; Transfer; Conjugated

This project, funded by the Chemical Structure, Dynamics and Mechanisms Program of the Division of Chemistry, supports Valeria Kleiman from the University of Florida to investigate energy migration in conjugated model systems, the material of choice for organic solar cells. The scientific goals will be achieved through the combination of phase sensitive transient techniques with computational tools to investigate excited state electronic coupling in conjunction with nuclear motion. Materials under investigation will include building blocks for conjugated macromolecules and chemically modified dendritic structures with variable band gap energies which can be used for solar energy conversion. A broad impact in the community is expected through a strong educational effort intended to yield highly educated scientists, well versed on the latest tools of state of the art spectroscopy and theoretical calculations regarding light harvesting materials.Solar energy conversion has the potential to provide enough energy to fuel the planet, but it requires an understanding of the fundamental properties to be able to create efficient and economic solar energy conversion devices. This proposal addresses these goals by focusing on the initial light harvesting step.

该项目由化学系化学结构、动力学和机制项目资助，支持佛罗里达大学的 Valeria Kleiman 研究共轭模型系统中的能量迁移，共轭模型系统是有机太阳能电池的首选材料。科学目标将通过相敏瞬态技术与计算工具相结合来研究激发态电子耦合与核运动的结合来实现。正在研究的材料将包括共轭大分子的构建模块和具有可变带隙能量的化学改性树枝状结构，可用于太阳能转换。通过大力的教育工作，旨在培养受过高等教育的科学家，他们精通最先进的光谱学工具和有关光收集材料的理论计算，预计会对社区产生广泛的影响。太阳能转换有潜力提供足够的能源为地球提供燃料，但需要了解基本特性才能创建高效且经济的太阳能转换设备。该提案通过关注最初的光收集步骤来实现这些目标。