CAREER: Control of Substrate Electronic States via Photochromic (Switching) Molecular Adsorbates

职业：通过光致变色（开关）分子吸附物控制基底电子态

• 批准号: 1056400
• 负责人: Jacob Ciszek
• 金额: $ 60.44万
• 依托单位: Loyola University of Chicago
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-07-01 至 2016-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1056400&HistoricalAwards=false
• 关键词: CAREER; Control; Substrate; Electronic; States

In this project supported by the Chemical Structure, Dynamics and Mechanisms Program, Professor Jacob W. Ciszek of Loyola University Chicago and his students will engage in three areas of exploration, allunified through the use of photochromic (switching) molecules, whose unique properties allow stimuli controlled and reversible changes to be induced in the underlying substrate. The areas of focus will be: 1) The effect of photochromic switching molecules on the work function and core binding energy of the substrate metal surface; 2) Determination of the distance dependence of metal surface-induced quenching of molecularadsorbate excited states, and 3) Exploration of the effect of self-assembled monolayers on the carrier density and conductivity within a semiconducting organic crystal substrate. The principal tools will beorganic synthesis, infrared reflection spectroscopy, x-ray photoelectron spectroscopy, and Kelvin probe (for work function determination). The aforementioned research topics have implications for the technology used in everyday life. For example, project one is relevant to organic light emitting diodes and solar cells. Projects 2 and 3 are relevant tothe emerging field of molecular electronics. Project 2 also has implications for luminescence-based biosensing technologies. The research activity in the Ciszek laboratory will also have educationalimplications, through the training of graduate and undergraduate students, the on-going development of a semester-long course in nanoscience, and the participation of Ciszek research group members inannual workshops on scientific research targeted at high school audiences. Professor Ciszek and his students will also participate in a series of science seminars for the general public. Future innovations inthis area include the adaptation of selected topics in the nanoscience course for the general public seminars.

在这个由化学结构，动力学和机制计划支持的项目中，雅各布W。芝加哥洛约拉大学的Ciszek和他的学生将从事三个领域的探索，所有这些都通过使用光致变色（开关）分子来统一，其独特的性质允许刺激控制和可逆的变化在底层基质中诱导。重点领域将是：1）光致变色开关分子对基底金属表面的功函数和核心结合能的影响; 2）金属表面诱导的分子吸附物激发态猝灭的距离依赖性的测定;和3）半导体有机晶体基底内自组装单层对载流子密度和电导率的影响的探索。主要工具将是有机合成、红外反射光谱、X射线光电子能谱和开尔文探针（用于功函数测定）。上述研究主题对日常生活中使用的技术具有影响。例如，项目一与有机发光二极管和太阳能电池有关。项目2和3与新兴的分子电子学领域有关。项目2还对基于发光的生物传感技术产生了影响。在Ciszek实验室的研究活动也将具有教育意义，通过研究生和本科生的培训，在纳米科学的一个学期的课程正在进行的开发，以及Ciszek研究小组成员在针对高中观众的科学研究年度研讨会的参与。Ciszek教授和他的学生还将参加一系列面向公众的科学研讨会。这一领域未来的创新包括为公众研讨会改编纳米科学课程中的选定主题。