Triplet Structure and Dynamics in Organometallic Oligomers and Polymers

有机金属低聚物和聚合物的三重态结构和动力学

• 批准号: 1151624
• 负责人: Kirk Schanze
• 金额: $ 45.32万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-02-15 至 2016-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1151624&HistoricalAwards=false
• 关键词: Triplet; Structure; Dynamics; Organometallic; Oligomers

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.

在这个由化学部大分子、超分子和纳米化学项目资助的项目中，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特性。该计划的总体目标是提供对π共轭、弱共轭和非共轭模型分子和聚合物发色团组装体中三重态激子态的结构、能量学和动力学的清晰理解。该结构将成为研究的重点，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态自旋态的产生，并促进室温磷光。了解具有离域电子系统的分子和聚合物的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，本研究项目所解决的问题与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）中的应用广泛相关。该研究项目还提供博士后、研究生和本科生在首席研究员实验室的重点培训。这些学生获得广泛的技能培训，从合成化学到物理方法的应用，如光谱学和材料表征。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）举办为期七周的住宿计划。每年夏天，Schanze小组都会接待一名SSTP学生，让他们参与到研究项目中，并在研讨会和工作坊中与SSTP的全体学生进行互动。