Modeling Strongly Correlated Multilayered Nanostructures for use as Thermoelectric Refrigerators

模拟用作热电冰箱的强相关多层纳米结构

• 批准号: 0705266
• 负责人: James Freericks
• 金额: $ 59.1万
• 依托单位: Georgetown University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-01 至 2011-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0705266&HistoricalAwards=false
• 关键词: Modeling; Strongly; Correlated; Multilayered; Nanostructures

This award supports theoretical and computational research onthermoelectric materials. In these materials, the flow of heat andelectric charge are linked in a way that makes it possible to convertelectrical current into heat flow for cooling purposes, or to convertheat flow into electrical current for power generation. Thermoelectricdevices are already used in specialized applications, but improvedmaterials that allow more efficient device operation are needed. Thisproject will use theory and computation to search for novel materialswith improved thermoelectric properties for cooling applications. Theresearch will address the roles of both electrons and lattice vibrationsin the transport of heat and electric charge in thermoelectricmaterials. Materials with strong electron-electron interactions will beinvestigated, both in bulk form, as well as in artificially engineerednanostructures. The goal is to develop efficient and accuratecomputational methods that can be used to identify promising classes ofmaterials that optimize competing factors relevant for cooling and toelucidate ways in which nanostructures can be used to modify both chargeand heat flow to improve thermoelectric performance.This project supports the training of graduate students, both in theacademic research environment and in the industrial R&D context. Theproject also provides research experiences for undergraduate students,and supports the continued development and assessment of a course inquantum mechanics and materials science for non-science students. Arelated outreach program will introduce the wonders of the quantum worldto elementary-school students.

该奖项支持理论和计算研究材料。 在这些材料中，热和电荷的流量以一种使电流转化为热流的方式，以进行冷却，或将电流转化为电流以产生发电。热电台已经用于专业应用中，但是需要改进的材料，这些材料需要更有效的设备操作。 ThisProject将使用理论和计算来搜索用于冷却应用的新型材料工艺改善的热电特性。 搜索将解决电子和晶格振动在热电材料中热和电荷的运输中的作用。 具有强大电子相互作用的材料将以散装形式和人工设计的纳米结构进行评估。 The goal is to develop efficient and accuratecomputational methods that can be used to identify promising classes ofmaterials that optimize competing factors relevant for cooling and toelucidate ways in which nanostructures can be used to modify both chargeand heat flow to improve thermoelectric performance.This project supports the training of graduate students, both in theacademic research environment and in the industrial R&D context. 该项目还为本科生提供研究经验，并支持对非科学学生的探究力学和材料科学的持续发展和评估。 杂志的外展计划将介绍Quantum Worldto小学学生的奇观。