SGER: Exploratory Research: Integration of Multiscale Nanowire Devices and their Thermoelectrical Characterization

SGER：探索性研究：多尺度纳米线器件的集成及其热电特性

• 批准号: 0841265
• 负责人: Tae-Youl Choi
• 金额: --
• 依托单位: University of North Texas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2010-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0841265&HistoricalAwards=false
• 关键词: SGER; Exploratory; Research; Integration; Multiscale

The main goal of this project is to realize the fabrication of multiscale electric devices based on conducting nanowires and their characterization by using nanomanufacturing principles such as self-assembly, dielectrophoresis, and focused ion beam nanolithography. The objectives include the following tasks:(a) hierarchical integration of nanowires into multiscale electric devices, and(b) characterization of individual nanowires in terms of Seebeck coefficient and thermal conductivity.The self-assembly technique and dielectrophoresis will be combined to control individual nanowires and attract them into desired pairs of microelectrodes. Fountain pen-based metal nanoink soldering or electron-beam metal deposition techniques will be adapted to enhance the conductivity between metal electrodes and nanowires. Focused ion beam will be used to define a nanostructure such as nanoheater/nanothermometer for aiding the characterization of individual nanowires. The importance of the of the proposed work lies in the fact that the investigation of thermal and electric properties of nanowires will provide a fundamental database for thermoelectric devices, which in turn contributes to developing alternative energy sources. The proposed integration method will provide a practical means for nanomanufacturing massive and multiscale nanowire-based thermoelectric devices. The proposed work yields significant information on the Seebeck and Peltier coefficients of one-dimensional nanostructures. The research outcomes of nanomanufacturing and properties of nanomaterials investigated in the project will contribute to establishing a new research and education program in the recently established Mechanical and Energy Engineering Department at the University of North Texas. A systematic effort will be made to recruit minorities to this research project through the Texas Academy of Mathematics and Science program. Talented undergraduate students with a high degree of financial need in this program are ensured of success as they are engaged in the various research experiences proposed herein.

该项目的主要目的是通过使用纳米制造原理（例如自组装，介电性电泳和聚焦的离子束纳米函数）来实现基于传导纳米线及其表征的多尺度电动设备的制造。 The objectives include the following tasks:(a) hierarchical integration of nanowires into multiscale electric devices, and(b) characterization of individual nanowires in terms of Seebeck coefficient and thermal conductivity.The self-assembly technique and dielectrophoresis will be combined to control individual nanowires and attract them into desired pairs of microelectrodes.将基于钢笔的金属纳米型焊接或电子束金属沉积技术适应以增强金属电极和纳米线之间的电导率。聚焦离子束将用于定义纳米结构，例如纳米仪/纳米热计，以帮助单个纳米线的表征。提出的工作的重要性在于，纳米线的热和电性能的研究将为热电设备提供基本数据库，这反过来又有助于开发替代能源。所提出的集成方法将为纳米制造提供一种实用手段，以大规模和多尺度的基于纳米线的热电设备。提出的工作提供了有关一维纳米结构的Seebeck和Peltier系数的重要信息。该项目中调查的纳米材料的纳米制造和特性的研究结果将有助于在北德克萨斯大学最近建立的机械和能源工程系建立新的研究和教育计划。将通过德克萨斯州数学与科学计划学院招募少数群体来制定系统的努力。在此计划中，有才华的本科生在此计划中有很高的财务需求，因为他们参与了本文提出的各种研究经验。