Acquisition of a Phase-Modulated Fluorimeter for Materials Research and Education

购买用于材料研究和教育的相位调制荧光计

• 批准号: 0114002
• 负责人: Benjamin Schwartz
• 金额: $ 9.6万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-08-15 至 2002-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0114002&HistoricalAwards=false
• 关键词: Acquisition; Phase; Modulated; Fluorimeter; Materials

This award from the Instrumentation for Materials Research program will support the University of California Los Angeles (UCLA) with the acquisition of a Fluorolog 3-22 Lifetime System from ISA/Jobin Yvon. The instrument consists of single excitation and double collection monochromators, with fully automated entrance and exit slit control. The instrument will have an immediate impact on the research projects of four research groups at UCLA. The first group will investigate interactions between chains of semiconducting polymers and the dynamics of energy flow in aligned conjugated polymer/mesoporous silica hybrid materials. The work should provide a new understanding of these important materials that will enhance the possibility of application in organic-based displays or photovoltaic devices. The second group will study the properties of newly synthesized molecular compasses and gyroscopes, as well as explore the effects of aromatic ring rotation in conjugated molecules. The information learned from these experiments will have direct application in the production of new organic materials that should have switching properties that are faster than the fastest known ferroelectric liquid crystals. The third group will explore the synthesis and properties of novel heteroacenes, which also will have unique applications in electroluminescent and photovoltaic devices. Finally, the fourth group will use time-resolved resonance energy transfer to study the spatial distributions of molecules deliberately placed in mesostructured silicas, and time-resolved fluorescence depolarization as an in situ probe of the formation dynamics of mesostructured silica films. The information gained in these experiments will improve our understanding of how the formation of mesostructured materials can be controlled and directed. The simplicity of the instrument will ensure routine usage and great productivity, especially in an undergraduate educational environment. Undergraduate students in the physical chemistry and analytical laboratory classes will be able to routinely measure the fluorescence lifetimes of dyes and other molecules, allowing them to explore the dynamics of intramolecular electron transfer and other important photochemical reactions.This award from the Instrumentation for Materials Research program will support the University of California Los Angeles (UCLA) with the acquisition of a Fluorolog 3-22 Lifetime System from ISA/Jobin Yvon. The instrument consists of single excitation and double collection monochromators, with fully automated entrance and exit slit control. The instrument will have an immediate impact on the research projects of four research groups at UCLA. The information gained in these experiments will improve our understanding of how the formation of mesostructured materials can be controlled and directed. The simplicity of the instrument will ensure routine usage and great productivity, especially in an undergraduate educational environment. Undergraduate students in the physical chemistry and analytical laboratory classes will be able to routinely measure the fluorescence lifetimes of dyes and other molecules, allowing them to explore the dynamics of intramolecular electron transfer and other important photochemical reactions.

材料研究仪器计划的这一奖项将支持加州洛杉矶大学（UCLA）从伊萨/Jobin Yvon购买Fluorolog 3-22 Lifetime System。 该仪器由单激发和双收集单色仪组成，具有全自动入口和出口狭缝控制。该仪器将对加州大学洛杉矶分校四个研究小组的研究项目产生直接影响。第一组将研究半导体聚合物链之间的相互作用和对齐共轭聚合物/介孔二氧化硅杂化材料中的能量流动力学。 这项工作应该提供对这些重要材料的新理解，这将提高在有机显示器或光伏器件中应用的可能性。 第二组将研究新合成的分子罗盘和陀螺仪的特性，以及探索共轭分子中芳香环旋转的影响。 从这些实验中学到的信息将直接应用于生产新的有机材料，这些材料应该具有比已知最快的铁电液晶更快的开关特性。 第三组将探索新型杂并苯的合成和性质，这也将在电致发光和光伏器件中具有独特的应用。 最后，第四组将使用时间分辨共振能量转移来研究故意放置在介观结构二氧化硅中的分子的空间分布，以及时间分辨荧光去偏振作为介观结构二氧化硅膜的形成动力学的原位探针。 这些实验中获得的信息将提高我们对如何控制和引导介孔结构材料形成的理解。仪器的简单性将确保日常使用和高生产力，特别是在本科教育环境中。物理化学和分析实验室课程的本科生将能够常规测量染料和其他分子的荧光寿命，这一来自材料研究仪器计划的奖项将支持加州大学洛杉矶分校（UCLA）收购Fluorolog 3-伊萨/Jobin Yvon的22 Lifetime System。 该仪器由单激发和双收集单色仪组成，具有全自动入口和出口狭缝控制。该仪器将对加州大学洛杉矶分校四个研究小组的研究项目产生直接影响。在这些实验中获得的信息将提高我们对如何控制和指导介观结构材料的形成的理解。仪器的简单性将确保日常使用和高生产力，特别是在本科教育环境中。物理化学和分析实验室课程的本科生将能够常规测量染料和其他分子的荧光寿命，使他们能够探索分子内电子转移和其他重要光化学反应的动力学。