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

卡内基梅隆大学的琳达·佩特亚努得到了理论和计算化学项目的支持，利用斯塔克光谱学研究复杂的凝聚分子系统。 设计复杂分子系统（如聚合物、染料聚合物复合物和聚合物）以满足特定应用的能力取决于对其结构和周围介质如何影响其电子特性的透彻理解。 斯塔克光谱可以解决这些系统中电子变化的幅度。 PI将通过研究与DNA复合的花青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，以克服斯塔克测量中的异质性问题。复杂介质，如染料聚集体和导电聚合物的光学响应是重要的，以了解传感器和纳米技术的进步。

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.