CAREER: Understanding Nanoscale Radiative Transport in Multi-Body Systems

职业：了解多体系统中的纳米级辐射传输

• 批准号: 2237003
• 负责人: Mohammad Ghashami
• 金额: $ 62.97万
• 依托单位: University of Nebraska-Lincoln
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-07-01 至 2028-06-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2237003&HistoricalAwards=false
• 关键词: CAREER; Understanding; Nanoscale; Radiative; Transport

Thermal management of nanodevices requires a solid understanding of radiative heat transfer in reduced dimensions. To date, experiments involving radiative heat transfer have been limited by a focus on two-body systems. This CAREER program will explore the potential of systems containing more than two objects (i.e., multi-body systems) to lead to new physical and transport behaviors and, as a result, enable new applications in domains of national importance such as aerospace electronics, energy conversion technology, and information processing. To create these new technologies, it is essential to experimentally study and understand nanoscale radiative heat transfer between multiple objects and explore its use for improving heat exchange and thermal control. Thus, a primary outcome of this research will be a novel technique that enables the study of nanoscale radiative heat transfer among multiple objects. In addition to providing the fundamental knowledge necessary to advance thermal control at the nanoscale, this program will implement an innovative educational platform that promotes practical workforce development in academia by bridging the gap between academic work and industrial problems and stimulates curiosity among K-12 students in exploring engineering careers. This CAREER program will apply the physics of radiative transport in multi-bodies to solve thermal control problems in nanodevices. Specifically, this research will experimentally uncover the governing physics that drive electromagnetic waves-matter interactions in multi-body systems to identify the contributing factors in near-field radiative heat transfer (NFRHT). This work will provide new knowledge critical to the development of next-generation nanodevices by: (1) understanding the effect of structural factors on NFRHT in multi-bodies and (2) elucidating the role of multi-body physics in NFRHT for active thermal management. Significant structural and material factors in the spatial confinement of evanescent photons between multi-bodies will be identified through precision heat transfer measurements. Findings will provide in-depth understanding on how multiple interactive objects within micro/nano-dimensions impact radiative transport mechanisms—knowledge that will have far-reaching implications for advancing the thermal management of state-of-the-art high-power systems in industrial and technological applications. This research is integrated with education objectives to: (1) create an Academic-Industry Bridge (AIB) initiative for undergraduate and graduate students and (2) extend the AIB initiative to include an interactive platform for hands-on research projects for K- 12 students. Collaborations with Navajo Technical University and the University of Texas Rio Grande Valley will ensure engagement with diverse audiences.This project is jointly funded by the Thermal Transport Processes Program in the Chemical, Bioengineering, Environmental and Transport Systems (CBE) Division of the Engineering Directorate, and the Established Program to Stimulate Competitive Research (EPSCoR).This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

纳米式的热管理对降低尺寸的辐射热传递的固体了解受到了两种职业系统的重点。为了实现新的物理和运输行为以及UCH ASPACE电子，能量转换技术和信息处理，以创建这些新技术，实验研究研究纳米级的热传递热控制，这是多个物体之间的主要结果。 -12个学生从事工程职业。生成纳米评价：（1）理解结构因子对NFRHT形式管理中的nfrht造成的影响（2）多体之间的evanevandatics。纳米维度会影响辐射运输机制 - 知识，以推进工业和技术应用中的高功率系统的热量管理，并以教育目标评级为：（1）对于地下和研究生（2）B倡议，用于为K-12学生提供动手研究项目的交互式平台。工程学的部门和您建立的刺激竞争研究的计划（EPSCOR）。该奖项反映了NSF的弗里任务，并使用基金会的知识分子优点和更广泛的影响评估标准，值得通过评估。