Structural and Environmental Effects on the Electronic Properties of Complex Molecular Systems as Probed by Stark Spectroscopy

卡内基梅隆大学的Linda Peteanu得到了理论和计算化学计划的支持，该计划利用斯塔克光谱研究复杂的凝聚分子体系。将聚合物、染料-聚合物络合物和聚集体等复杂分子系统设计成特定应用的能力，取决于对它们的电子性质如何受到其结构和周围介质影响的透彻了解。斯塔克光谱学可以解决这些系统中电子变化的幅度。PI将通过研究与DNA络合的菁染料以及导电聚合物来继续调查这些问题。此外，她将增加单分子技术来克服斯塔克测量中的异质性问题。了解复杂介质(如染料聚集体和导电聚合物)的光学响应对于传感器和纳米技术的进步非常重要。

Linda Peteanu of the Carnegie Mellon University is supported by the Theoretical and Computational Chemistry Program to study complex condensed molecular systems using Stark spectroscopy. The ability to engineer complex molecular systems such as polymers, dye-polymer complexes and aggregates to specific applications depends on a thorough understanding of how their electronic properties are impacted by their structure and the surrounding media. Stark spectroscopy can address the magnitude of electronic changes in these systems. The PI will continue investigations into these issues by studying cyanine dyes complexed with DNA as well as conducting polymers. Moreover, she will add single molecule techniques to overcome problems of heterogeneity in the Stark measurements.Optical responses of complex media such as dye aggregates and conducting polymers are important to understand for advances in sensors and nanotechnology.