Sorting and Assembly of Nanomaterials on Polymer Substrates Using Fluidic and Weak Ultrasound Fields for Fabrication of Flexible Electronic Devices

使用流体和弱超声场在聚合物基底上分类和组装纳米材料以制造柔性电子器件

• 批准号: 2003077
• 负责人: Bo Li
• 金额: $ 50万
• 依托单位: Villanova University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-07-01 至 2025-06-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2003077&HistoricalAwards=false
• 关键词: Sorting; Assembly; Nanomaterials; Polymer; Substrates

This grant supports research that generates new knowledge in the manufacturing of flexible electronics, promoting national prosperity, health, and safety. Flexible electronics represents a manufacturing technology that builds circuits and devices on flexible polymer substrates. Flexible devices have applications in health monitoring, drug delivery, energy storage and personal entertainment, and has the potential to reshape human lifestyle. Nanomaterials have been enthusiastically embraced in flexible electronic manufacturing due to their outstanding functionalities and small size. However, the inherent size variation of nanomaterials presents a significant challenge for repeatable and reliable device manufacturing. Traditionally, a separate nanomaterial sorting process is required, which is not only costly but also slows down the manufacturing process. This award supports fundamental research to generate knowledge for the development of a highly efficient sorting-assembly manufacturing process that selectively assembles nanomaterials with similar sizes into nanostructures for flexible electronic and other devices. Importantly, the unique feature of utilizing low-cost raw nanomaterials with large size variations into high-quality device structures can lead to manufacturing of affordable flexible electronic devices. This research integrates nanomanufacturing, material science, and fluid mechanics. The knowledge gained is applied toward the education of underrepresented STEM students and the development of undergraduate and graduate manufacturing curricula, thus educating and training the future workforce in advanced manufacturing. This research combines a novel fluidic control mechanism with a weak sono-assisted assembly process that achieves assembly of nanomaterials, such as, zero-, one- and two-dimensional materials, with precisely controlled particle size and assembly rate. Microfluidic devices that are typically used in cellular biomechanics research are utilized in the nanomanufacturing process. Transport models that are typically applied in drug delivery research are utilized to study the transport, deposition and assembly of the nanoparticles in the fluidic-assisted systems. This research uncovers the interaction and synergy between the fluidic and weak sono fields and their influences on the sorting and assembly processes. This is done through the integration of the theoretical modeling and numerical simulation of nanoparticle transport and deposition with experimental validations. This unique approach can be transformative to a wide range of nanomaterial assembly systems including ceramic, metal, and organic nanoparticles. This research advances knowledge in nanomaterials assembly and promotes the field of nanomanufacturing, offering more choices of materials and functionalities, better device repeatability, significantly enhanced manufacturing efficiency and affordable flexible electronics.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.

这笔赠款支持在柔性电子产品制造方面产生新知识的研究，促进国家繁荣、健康和安全。柔性电子产品代表了一种在柔性聚合物基板上构建电路和设备的制造技术。柔性设备在健康监测、药物输送、能量存储和个人娱乐等领域有着广泛的应用，并有可能重塑人类的生活方式。纳米材料因其出色的功能和较小的尺寸而在柔性电子制造领域受到热烈欢迎。然而，纳米材料固有的尺寸变化对可重复且可靠的设备制造提出了重大挑战。传统上，需要单独的纳米材料分选过程，这不仅成本高昂，而且会减慢制造过程。该奖项支持基础研究，为开发高效的分类组装制造工艺提供知识，该工艺有选择地将尺寸相似的纳米材料组装成柔性电子和其他设备的纳米结构。重要的是，利用尺寸变化大的低成本原材料纳米材料形成高质量器件结构的独特功能可以导致制造价格实惠的柔性电子器件。这项研究整合了纳米制造、材料科学和流体力学。所获得的知识应用于对代表性不足的 STEM 学生的教育以及本科生和研究生制造课程的开发，从而教育和培训先进制造领域的未来劳动力。 该研究将新型流体控制机制与弱声辅助组装工艺相结合，实现零维、一维和二维材料等纳米材料的组装，并具有精确控制的粒径和组装速率。通常用于细胞生物力学研究的微流体装置被用于纳米制造过程。通常应用于药物输送研究的传输模型用于研究流体辅助系统中纳米粒子的传输、沉积和组装。这项研究揭示了流体和弱声场之间的相互作用和协同作用及其对分类和组装过程的影响。这是通过将纳米粒子传输和沉积的理论建模和数值模拟与实验验证相结合来完成的。这种独特的方法可以变革各种纳米材料组装系统，包括陶瓷、金属和有机纳米颗粒。这项研究推进了纳米材料组装方面的知识并推动了纳米制造领域的发展，提供了更多的材料和功能选择、更好的设备可重复性、显着提高的制造效率和价格实惠的柔性电子产品。该奖项反映了 NSF 的法定使命，并通过评估认为值得支持利用基金会的智力优势和更广泛的影响审查标准。

项目成果

Recent progress in solution assembly of 2D materials for wearable energy storage applications

用于可穿戴储能应用的二维材料解决方案组装的最新进展

• DOI: 10.1016/j.jechem.2021.03.002
• 发表时间: 2021
• 期刊: Journal of Energy Chemistry
• 影响因子: 13.1
• 作者: Zhou, Dong;Zhao, Liang;Li, Bo
• 通讯作者: Li, Bo

Ultrafast assembly and healing of nanomaterial networks on polymer substrates for flexible hybrid electronics

• DOI: 10.1016/j.apmt.2021.100956
• 发表时间: 2021-03
• 期刊: Applied Materials Today
• 影响因子: 8.3
• 作者: Dong Zhou;Meikang Han;Bchara Sidnawi;Qianhong Wu;Y. Gogotsi;Bo Li-

A physics-based statistical model for nanoparticle deposition

• DOI: 10.1063/5.0039861
• 发表时间: 2020-11
• 期刊: Journal of Applied Physics
• 影响因子: 3.2
• 作者: Bchara Sidnawi;Dong Zhou;Bo Li;Qianhong Wu

On the examination of the viscous response of the brachial artery during flow-mediated dilation

血流介导扩张过程中肱动脉粘性反应的检测

• DOI: 10.1016/j.jmbbm.2022.105255
• 发表时间: 2022
• 期刊: Journal of the Mechanical Behavior of Biomedical Materials
• 影响因子: 3.9
• 作者: Sidnawi, Bchara;Santhanam, Sridhar;Sehgal, Chandra;Wu, Qianhong
• 通讯作者: Wu, Qianhong