Career: Energy Transport in Conjugated Polymers Studied by Time- and Space-Resolved Spectroscopy

职业：通过时间和空间分辨光谱研究共轭聚合物中的能量传输

• 批准号: 9984683
• 负责人: Christopher Bardeen
• 金额: $ 34万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-02-15 至 2005-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9984683&HistoricalAwards=false
• 关键词: Career; Energy; Transport; Conjugated; Polymers

Professor Christopher Bardeen of the University of Illinois is supported by a CAREER award in the Experimental Physical Chemistry program. He will study energy transport in conjugated polymers using ultrafast time-resolved optical spectroscopy. Excited conjugated polymers undergo a transition from coherent exciton to incoherent Forster-type energy transfer; this transition can be followed using polarization and phase sensitive four-wave-mixing measurements. In addition to the time behavior, Professor Bardeen will study this phenomenon in a spatially resolved way using near field spectroscopy in fluorescence resonance energy transfer mode and cathodoluminescence mode. Nanometer sized crystals of the conducting polymers will also be synthesized and studied. Professor Bardeen's teaching strategy consists of "active" learning on the part of students. With graduate students, one emphasis is on communication and analytical skills which will be improved by regular, graded presentations on scientific research. With undergraduate students, "Real World Chemistry" lectures will be given to motivate students.The photoconducting polymer poly(phenylene vinylene) is currently of interest as an alternative to inorganic semiconductors, especially for light emitting diodes (LEDs). This work will produce results needed to understand how these materials transport energy. Professor Bardeen has excellent ideas about both graduate and undergraduate teaching which are thoughtful and adjusted to the current situation for the future of science and technology.

伊利诺伊大学的克里斯托弗·巴托教授在实验物理化学项目中获得了职业奖。 他将使用超快时间分辨光谱学研究共轭聚合物中的能量传输。 激发共轭聚合物经历从相干激子到非相干福斯特型能量转移的转变;这种转变可以使用偏振和相敏四波混频测量来跟踪。 除了时间行为外，Barthel教授还将在荧光共振能量转移模式和阴极发光模式下使用近场光谱学以空间分辨的方式研究这一现象。 导电聚合物的纳米晶体也将被合成和研究。 Barthel教授的教学策略包括学生的“主动”学习。 对于研究生，一个重点是沟通和分析能力，这将通过定期的，分级的科学研究报告来提高。 与本科生一起，将进行“真实的世界化学”讲座，以激励学生。光导聚合物聚（亚苯基亚乙烯基）作为无机半导体的替代品，特别是用于发光二极管（LED），目前受到关注。 这项工作将产生了解这些材料如何传输能量所需的结果。 教授barnard有关于研究生和本科教学的优秀想法是深思熟虑的，并调整到目前的形势，为未来的科学和技术。