Position-Dependent Properties of Novel Electronic Materials: Tunneling, Infrared, and Electromechanical Measurements

新型电子材料的位置相关特性：隧道、红外和机电测量

• 批准号: 0801764
• 负责人: Joseph Brill
• 金额: $ 41万
• 依托单位: University of Kentucky Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-07-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0801764&HistoricalAwards=false
• 关键词: Position; Dependent; Properties; Novel; Electronic

Technical:The two principal investigators of this award have developed probes to measure the infrared reflectance, tunneling spectra, and mechanical properties of small crystalline and thin film samples as functions of position. These probes, an infrared microscope with tunable diode lasers as light source, scanning tunneling microsocsope with long-distance scanner, and a helical resonator motion detector, will be used to study changes in electronic, molecular, and piezoelectric properties as functions of voltage, frequency, and distance from electrical contacts. The materials to be studied include organic semiconductors based on pentacene derivatives, being developed for applications in field-effect-transistors, and charge-density-wave materials, being studied as nano-torsional actuators, with the goals of improving our understanding of their conducting and piezoelectric mechanisms. Graduate students will gain experience in a wide range of characterizational and synthetic techniques. Undergraduate education majors (pre-service teachers) will work in summers not only to improve their appreciation of scientific techniques but to develop teaching tools for their future careers.Non-Technical:In recent decades, there has been an explosion of interest in using new electronic materials to replace conventional semiconductors in devices ranging from flexible displays to electromechanical actuators. The application of many of these materials faces not only large technical hurdles but questions in our understanding of their basic conducting and mechanical properties, including the effects of charge on the constituent molecules located near electrical contacts. The two principal investigators of this award have developed new optical, tunneling, and electromechanical probes that will be used to study the electronic, molecular, and mechanical properties as functions of distance from contacts. Materials to be studied are new organic semiconductors, to be utilized in transistors, and non-uniform charge distribution materials, with possible applications as mechanical actuators. Graduate students working on the project will gain broad experience in different characterizational and synthetic techniques that will prepare them for careers in industry, academia, and research laboratories. In addition, pre-service teachers will assist in the labs in summers to gain appreciation of scientific laboratory work and also prepare future teaching materials.

技术：该奖项的两位主要研究人员开发了测量小晶体和薄膜样品的红外反射率、隧道光谱和机械性能随位置的函数的探测器。这些探头是以可调谐半导体激光器为光源的红外显微镜、带远距离扫描仪的扫描隧道显微镜和螺旋谐振器运动探测器，它们将被用来研究电子、分子和压电特性随电压、频率和距离电接触的变化。要研究的材料包括基于并五苯类化合物的有机半导体，正在开发用于场效应晶体管的有机半导体，以及电荷密度波材料，正在作为纳米扭转驱动器进行研究，目的是提高我们对其导电和压电机理的了解。研究生将获得广泛的表征和合成技术方面的经验。本科教育专业的学生(职前教师)将在暑假工作，不仅要提高他们对科学技术的鉴赏力，还要为他们未来的职业生涯开发教学工具。非技术性：近几十年来，在从柔性显示器到机电执行器的各种设备中，使用新的电子材料取代传统半导体的兴趣激增。其中许多材料的应用不仅面临着巨大的技术障碍，而且在我们理解它们的基本导电和机械性能方面也面临着问题，包括电荷对位于电触点附近的组成分子的影响。该奖项的两位主要研究人员开发了新的光学、隧道和机电探头，这些探头将用于研究电子、分子和机械特性与接触距离的函数。要研究的材料是用于晶体管的新型有机半导体，以及可能用作机械执行器的非均匀电荷分布材料。从事该项目的研究生将在不同的表征和合成技术方面获得广泛的经验，这将为他们在工业、学术和研究实验室的职业生涯做好准备。此外，入职前教师将在夏季协助实验室，以获得对科学实验室工作的欣赏，并准备未来的教材。