CAREER: Manufacturing Cofacially Aligned Nanolayered Architectures through Electrostatic Levitation: Fundamental Research with Integrated Education

职业：通过静电悬浮制造共面对齐的纳米层架构：基础研究与综合教育

• 批准号: 2146065
• 负责人: Ying Zhong
• 金额: $ 61万
• 依托单位: University of South Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-03-15 至 2027-02-28
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2146065&HistoricalAwards=false
• 关键词: CAREER; Manufacturing; Cofacially; Aligned; Nanolayered

Nanomaterials have changed the world through numerous innovative solutions to energy, electronics, biomedicine, environment and so forth. With a substantially reduced size, the so-called “near-field interaction” (from immediate proximity) between nanolayers become nontrivial, causing unwanted adhesion and disordered agglomeration, a hurdle to harness the full advantage of their unique properties. This Faculty Early Career Development (CAREER) award supports research to investigate the use of electrostatic levitation to overcome the near-field net attraction between nanolayers and to manufacture three-dimensional cofacially aligned nanolayers (3D-CAN) in a scalable manner. 3D-CAN architectures can produce many unmatched properties with broad applications for thermal insulation, signal tuning, catalysis, energy saving, and sensing, etc., with an opportunity to benefit the society with efficient manufacturing solutions, detection systems for healthcare, environment protection, and space exploration, etc. The research and education activities will be integrated through various mechanisms, such as integrating research with new certificate-offering coursework, hosting STEM Days and workshops for community college students, offering a SWE-Teas Research Expo to female undergraduates in collaboration with the Society of Women Engineers, as well as providing the Fun with Electronics events for K-8 minority students, all aiming at fostering a more diverse, domestic engineering workforce in US.The ultimate research goal of this CAREER award is to understand and program the near-field interaction between nanolayers for the manufacturing of scalable 3D-CAN architectures. The team will apply corona discharging to induce quasi-permanent charges into nanolayers to actively program the electrostatic interaction between each nanolayer and further analyze and employ electrostatic levitation to produce 3D-CAN architectures. First, the near-field interaction mechanisms between nanolayers before and after corona-induced charging will be investigated using a surface force apparatus and by atomic force microscopy to establish force-distance profiles. Then, fundamentals in fabricating 3D-CAN at a lab scale will be studied by designing the charge distribution in multi-layer architectures of both ceramic and polymer nanofilms. In addition, manufacturing 3D-CAN, in a production scale, will be explored using an enzyme-assisted roll-to-roll method with power-of-two stacking of nanofilms. Further, the mechanical robustness of electrostatic-levitation enabled 3D-CAN and its capability of extreme thermal insulation will be evaluated with an environmental atomic force microscope and a modified transient plane source, respectively. Research outcomes are expected to expand the understanding, and thus, the capability of controlling near-field interactions between nanomaterials, which will provide a novel solution for efficiently manufacturing of large-scale 3D-CAN and potentially to many other ordered nano-architectures.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.

纳米材料通过能源、电子、生物医学、环境等众多创新解决方案改变了世界。随着尺寸的大幅减小，纳米层之间所谓的“近场相互作用”（来自紧邻）变得不平凡，导致不必要的粘附和无序团聚，这是利用其独特性质的全部优势的障碍。该学院早期职业发展（CAREER）奖支持研究使用静电悬浮来克服纳米层之间的近场净吸引力，并以可扩展的方式制造三维共面排列纳米层（3D-CAN）。3D-CAN架构可以产生许多无与伦比的特性，广泛应用于隔热，信号调谐，催化，节能和传感等，有机会为社会提供高效的制造解决方案，用于医疗保健，环境保护和太空探索的检测系统等。研究和教育活动将通过各种机制整合，例如将研究与新的证书课程相结合，为社区大学生举办STEM日和研讨会，与女工程师协会合作，为女本科生提供SWE-Teas研究博览会，并为K-8少数民族学生提供电子娱乐活动，所有这些活动都旨在促进更多样化，该CAREER奖项的最终研究目标是了解和编程纳米层之间的近场相互作用，用于制造可扩展的3D-CAN架构。该团队将应用电晕放电将准永久电荷引入纳米层，以主动编程每个纳米层之间的静电相互作用，并进一步分析和利用静电悬浮来产生3D-CAN架构。首先，纳米层之间的近场相互作用机制之前和之后的电晕感应充电将使用表面力装置和原子力显微镜，以建立力-距离的配置文件进行调查。然后，在实验室规模的3D-CAN制造的基础知识将通过设计在陶瓷和聚合物纳米膜的多层结构中的电荷分布进行研究。此外，在生产规模上，将使用酶辅助的卷对卷方法与纳米膜的二次幂堆叠来探索制造3D-CAN。此外，静电悬浮使能的3D-CAN的机械鲁棒性和极端的热绝缘的能力将分别与环境原子力显微镜和改进的瞬态平面源进行评估。预计研究成果将扩大理解，从而扩大控制纳米材料之间近场相互作用的能力，这将为大规模3D-CAN的有效制造提供新的解决方案，并可能为许多其他有序纳米材料提供新的解决方案。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查进行评估，被认为值得支持的搜索.