Triplet Structure and Dynamics in Organometallic Oligomers and Polymers

在这个由化学系高分子、超分子和纳米化学计划资助的项目中，佛罗里达大学的Kirk S.Schanze将研究导电聚合物分子线和薄膜中载流子传输的基本性质。该计划的总体目标是提供一个明确的理解，在圆周率共轭，弱共轭和非共轭模型分子和聚合物生色团组合中的三重态激子态的结构，能量和动力学。将成为研究重点的结构以铂金属单元为主要元素。这些金属中心有助于增强材料中三重自旋态的产生，并促进室温磷光。了解具有离域电子系统的分子和聚合物中光激发态的性质是非常重要的，因为这些材料在新一代塑料电子器件中的应用受到了科学家和工程师的极大关注。特别是，本研究计划中涉及的问题广泛涉及有机和有机金属材料在高效光源(有机发光二极管)、有机太阳能电池(光驱动发电)以及激光控制和衰减(非线性光学材料)中的应用。这项研究计划还为首席研究员实验室的博士后、研究生和本科生提供了关键培训。这些学生接受广泛的技能培训，范围从合成化学到光学光谱和材料表征等物理方法的应用。此外，作为该项目的一部分，研究小组将参加学生科学培训计划(SSTP)，每年夏天在佛罗里达大学为对科学、数学和工程职业感兴趣的高中生(11年级和12年级)举行为期七周的住宿计划。每年夏天，尚策小组将接待一名SSTP学生，让他们参与到研究项目中来，并在研讨会和工作坊环境中与SSTP的全体学生进行互动。

In this project funded by the Macromolecular, Supramolecular and Nanochemistry Program of the Chemistry Division, Kirk S. Schanze of the University of Florida will investigate fundamental properties of carrier transport in conducting polymer molecular wires and thin films. The overall objective of the program is to provide a clear understanding of the structure, energetics and dynamics of triplet exciton states in pi-conjugated, weakly conjugated and non-conjugated model molecular and polymeric chromophore assembliles. The structures that will be the focus of study feature platinum metal units as a primary element. These metal centers serve to enhance triplet spin state generation in the materials and promote room temperature phosphorescence. Understanding the properties of photoexcited states in molecules and polymers with delocalized electronic systems is very important because these materials are receiving a great deal of attention from scientists and engineers for application in a new generation of plastic electronic devices. In particular, the questions addressed in this research program are broadly relevant to applications of organic and organometallic materials in high efficiency light sources (organic light emitting diodes), organic solar cells (light driven electrical power generation), and in control and attenuation of laser light (non-linear optical materials). This research program provides also serves as key training for postdoc, graduate and undergraduate students in the principal investigator's laboratory. These students obtain broad training in skills ranging from synthetic chemistry to the application of physical methods such as optical spectroscopy and materials characterization. In addition, as part of this project the research group will participate in the Student Science Training Program (SSTP) with a seven-week residential program held each summer at the University of Florida for high school students (11th and 12th graders) interested in careers in science, math and engineering. Each summer the Schanze group will host an SSTP student, getting them involved in the research project, as well as interacting with the full group of SSTP students in seminar and workshop settings.