CAREER: Atmospheric-Pressure Manufacturing of Nanocrystalline Diamonds by Plasma-Assisted Flat Flame Vapor Deposition

职业：通过等离子体辅助平面火焰气相沉积法常压制造纳米晶金刚石

• 批准号: 2238235
• 负责人: Lili Cai
• 金额: $ 50万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-02-01 至 2028-01-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2238235&HistoricalAwards=false
• 关键词: CAREER; Atmospheric; Pressure; Manufacturing; Nanocrystalline

This Faculty Early Career Development (CAREER) grant will support research that will establish new knowledge of an atmospheric-pressure manufacturing process for nanocrystalline diamonds with well-controlled thermal, electrical and optical functionalities. Nanocrystalline diamonds are a class of carbon nanomaterials possessing prominent properties for a wide range of energy, semiconductor, biomedical and quantum applications. However, the current state-of-the-art approaches to fabricating nanoscale diamonds rely on either very high-pressure or low-pressure processes and lack scalability and controllability. These deficiencies stem from a lack of fundamental knowledge in atmospheric-pressure process required for high throughput, scalable manufacturing. The new approach will provide an economically viable platform for continuous, large-scale manufacturing of high-quality nanocrystalline diamonds. The success of this research project can advance a variety of technologies that have strategic importance to the U.S. national welfare and defense, including thermal management, energy conversion and storage, nanoscale sensing, biomedical imaging, quantum computing. The education and outreach activities will contribute to broadening the participation in STEM education and strengthening the next-generation workforce for solving societal challenges, particularly in the field of advanced manufacturing.The flame vapor deposition methods have the capability to synthesize nanocrystalline diamonds at atmospheric pressure. In contrast to the low-pressure or high-pressure processes that are operated in a batch-by-batch manner with long downtime for loading and unloading samples, the atmospheric-pressure flame synthesis approach shows great promise for continuous production that is more efficient and cost-effective for up-scaling to large quantities and large areas. To advance the atmospheric-pressure manufacturing of nanocrystalline diamonds, the research work will investigate the coupling of flame vapor deposition and plasma, with the hypothesis of two synergistic effects that can be made by flame-plasma coupling: 1) improving the growth rate, uniformity and stability for scaling up, and 2) increasing the in-situ doping efficiency for controlling the functionality of nanocrystalline diamond. The project will take a combined experimental and modeling approach to advance the understanding of the controllability and scalability of plasma assisted flame vapor deposition process, study the in-situ doping capability, and develop a continuous, atmospheric prototype with in-line quality diagnosis for manufacturing functional nanocrystalline diamond materials and devices.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.

这项教师的早期职业发展（职业）赠款将支持研究，该研究将建立有关具有良好控制的热，电气和光学功能的纳米晶体钻石的大气压制造过程的新知识。纳米晶钻石是一类碳纳米材料，具有广泛能量，半导体，生物医学和量子应用的突出特性。但是，制造纳米级钻石的当前最新方法依赖于非常高压或低压过程，并且缺乏可扩展性和可控性。这些缺陷是由于缺乏高通量，可扩展制造所需的大气压过程中的基本知识。这种新方法将为经济上可行的平台提供高质量纳米晶钻石的连续大规模制造。该研究项目的成功可以推进各种技术，这些技术对美国国家福利和国防具有战略重要性，包括热管理，能量转换和存储，纳米级传感，生物医学成像，量子计算。教育和外展活动将有助于扩大参与STEM教育的参与，并加强解决社会挑战的下一代劳动力，尤其是在高级制造领域。火焰蒸气沉积方法具有合成大气压力下纳米晶的钻石的能力。与以逐批次进行操作的低压或高压工艺相反，大气压的火焰合成方法对连续生产表现出了巨大的前景，对连续生产表现出了巨大的希望，这是更有效的，更具成本效益，可在上升到大量和大型面积和大面积和大面积。为了促进纳米晶钻石的大气压制造，研究工作将调查火焰蒸气沉积和等离子体的耦合，并假设两个协同效应可以通过火焰质量耦合来产生：1）提高增长速度，均匀的效率，并增加了范围的效率，并增加了范围的效率。纳米晶钻。该项目将采用一种结合的实验和建模方法，以提高对血浆辅助火焰蒸气沉积过程的可控性和可伸缩性的理解，研究原位兴奋剂能力，并开发连续的，大气的原型，并在线质量质量诊断，用于制造功能性纳米钻石材料材料和设备。智力优点和更广泛的影响审查标准。