Emission and Charge Transfer in Conjugated Materials and Their Aggregates: Towards Imaging Films and Devices

该奖项由化学系化学结构、动力学和机理A(CSDM-A)和高分子、超分子和纳米化学(MSN)计划资助，卡内基梅隆大学的Linda Peteanu教授和她的研究生和本科生同事正在研究有机光伏和电致发光材料的一些光物理性质。尽管这些材料已经在大量消费电子应用中变得重要，但它们的微观行为仍有一些鲜为人知的方面。Peteanu教授和她的团队正在努力提高我们对这些材料的一些分子水平行为的理解，着眼于制造更好的材料。与Peteanu教授合作的年轻科学家将接受实验物理化学和高分子科学方面的跨学科培训。Peteanu教授和她的团队正在进行一项多管齐下的研究计划，以更好地了解分子水平的行为如何影响模仿重要类别有机聚合物的有机低聚物的光物理性质。具体而言，Peteanu和她的学生开展了以下工作：(1)对各种工程材料中的电场导致发射猝灭的方式进行实验和理论研究；(2)与David Yaron(卡内基梅隆大学)、Sergei Tretiak(洛斯阿拉莫斯国家实验室)和Jing Ma(南京大学)合作进行理论研究；(2)对聚集体光谱进行实验和理论研究；(3)对融合薄膜和器件结构进行更高分辨率的成像，以了解聚集体中不同区域(核/壳)的光物理行为。与佩特阿努教授一起工作的学生接受现代物理化学方法的培训。佩特阿努教授和她的团队还参与了面向更大社区的教育推广活动，包括在卡内基科学中心举行的国家化学周活动。

In this award, funded by the Chemical Structure, Dynamics and Mechanisms A (CSDM-A) and the Macromolecular, Supramolecular and Nanochemistry (MSN) Programs of the Division of Chemistry, Professor Linda Peteanu of Carnegie-Mellon University and her graduate and undergraduate student colleagues are investigating some of the photophysical properties of organic-based photovoltaic and electroluminescent materials. Despite the fact that these materials have become important in a large number of consumer electronics applications, there are aspects of their microscopic behavior that remain poorly understood. Prof. Peteanu and her group are working on improving our understanding of some of the molecular-level behavior of these materials, with an eye towards making improved materials. The young scientists working with Prof. Peteanu will receive interdisciplinary training in experimental physical chemistry and macromolecular science. Prof. Peteanu and her group are carrying out a multi-pronged research program to obtain a better understanding how molecular-level behavior influences the photophysical properties of organic oligomers that mimic important classes of organic polymers. Specifically, Peteanu and her students are: (1) performing experimental and theoretical studies of the ways in which electric fields lead to emission quenching in a variety of engineered materials; the theoretical work benefits from collaboration with David Yaron (Carnegie Mellon University), Sergei Tretiak (Los Alamos National Laboratory), and Jing Ma (Nanjing University); (2) conducting experimental and theoretical studies of aggregate spectra; experiments will benefit from collaboration with the Center for Functional Nanomaterials at Brookhaven National Laboratory; and (3) developing higher-resolution imaging of confluent films and device structures to understand the photophysical behavior of differing regions (core/shell) in aggregates. Students working with Prof. Peteanu receive training in modern physical chemistry methods. Prof. Peteanu and her group are also involved in educational outreach efforts to the larger community, including National Chemistry Week activities at the Carnegie Science Center.