Collaborative Research: Scalable Nanomanufacturing of Perovskite-Analogue Nanocrystals via Continuous Flow Reactors

合作研究：通过连续流反应器进行钙钛矿类似物纳米晶体的可扩展纳米制造

• 批准号: 2315997
• 负责人: Ou Chen
• 金额: $ 36万
• 依托单位: Brown University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-01-01 至 2026-12-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2315997&HistoricalAwards=false
• 关键词: Collaborative; Research; Scalable; Nanomanufacturing; Perovskite

Lead halide perovskite nanocrystals are an emerging class of materials for next-generation photonic devices. However, the toxicity of lead has prevented them from being fully adopted by renewable energy technologies. Substitution of lead ions with eco-friendly metal ions such as copper, is a promising strategy to alleviate the toxicity issues of lead halide perovskite nanocrystals. However, scalable manufacturing of lead-free metal halide perovskites, known as perovskite-analogues, remains a challenge. This grant supports a collaborative research project that generates new knowledge related to scalable nanomanufacturing of high-performing perovskite-analogue nanocrystals using reconfigurable and modular continuous flow reactors. The new advanced manufacturing process leverages the high-throughput data generation capability of continuous flow reactors integrated with in-situ spectral characterization probes to enable precision synthesis of perovskite-analogue nanocrystals using a machine learning-assisted experimentation strategy. Lead-free semiconductor nanocrystals are increasingly preferred in photonic devices such as smart windows and luminescent solar concentrators. Large-scale manufacturing of lead-free perovskite-analogue nanocrystals with minimum energy loss can significantly reduce the total energy consumption across the U.S. and thereby benefit the nation's prosperity, health, and security. This collaborative research integrates multiple fields, including advanced manufacturing, materials chemistry, flow reactor engineering, and data science. The convergent nature of this collaborative project facilities broadening participation of women and other underrepresented groups in research and helps train next-generation leaders in science and engineering. The project plans to use YouTube to broadly disseminate the generated nanomanufacturing knowledge.Scalable manufacturing of perovskite-analogue nanocrystals is a time- and resource-intensive undertaking using conventional batch reactors. This challenge is mainly due to the fast formation kinetics of perovskite-analogue nanocrystals, resulting in process-dependent nanocrystal properties. This collaborative research project is to address the advanced manufacturing knowledge gaps in scalable production of perovskite-analogue nanocrystals. The research team plans to utilize reconfigurable and modular flow reactors to study high-temperature precision nanomanufacturing of copper-based perovskite-analogue nanocrystals using a decoupled precursor chemistry. Through integration of data science with automated flow reactors, the high-dimensional nanomanufacturing space of copper-based perovskite-analogue nanocrystals are rapidly explored to identify optimal nanomanufacturing routes of fabricating high-performance nanocrystals with desired optical and optoelectronic properties for device applications. The application of reconfigurable and modular continuous flow reactors with on-demand and selective precursor heating capability to nanomanufacturing is unique and a powerful way to enable precision manufacturing and increase production scale at which copper-based perovskite-analogue nanocrystals and other energy-relevant materials can be economically manufactured.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.

卤化铅钙钛矿纳米晶体是用于下一代光子器件的新兴材料。然而，铅的毒性阻碍了它们被可再生能源技术充分采用。用铜等环保金属离子替代铅离子是缓解卤化铅钙钛矿纳米晶体毒性问题的一种有前景的策略。然而，无铅金属卤化物钙钛矿（称为钙钛矿类似物）的规模化制造仍然是一个挑战。该赠款支持一个合作研究项目，该项目产生与使用可重新配置和模块化连续流反应器进行高性能钙钛矿类似物纳米晶体的可扩展纳米制造相关的新知识。新的先进制造工艺利用连续流反应器与原位光谱表征探针集成的高通量数据生成能力，利用机器学习辅助实验策略实现钙钛矿类似纳米晶体的精确合成。无铅半导体纳米晶体在智能窗户和发光太阳能聚光器等光子器件中越来越受到青睐。以最小的能量损失大规模生产无铅钙钛矿纳米晶体可以显着降低美国的总能源消耗，从而有利于国家的繁荣、健康和安全。这项合作研究整合了多个领域，包括先进制造、材料化学、流动反应器工程和数据科学。该合作项目的融合性质有助于扩大妇女和其他代表性不足的群体对研究的参与，并有助于培训下一代科学和工程领域的领导者。该项目计划利用 YouTube 广泛传播所产生的纳米制造知识。使用传统间歇式反应器进行钙钛矿类似物纳米晶体的规模化制造是一项耗时和资源密集型的工作。这一挑战主要是由于钙钛矿类似纳米晶体的快速形成动力学，导致纳米晶体特性依赖于工艺。该合作研究项目旨在解决钙钛矿类似纳米晶体可扩展生产中的先进制造知识差距。研究小组计划利用可重构和模块化流动反应器来研究使用解耦前体化学的铜基钙钛矿类似物纳米晶体的高温精密纳米制造。通过将数据科学与自动流动反应器相结合，可以快速探索铜基钙钛矿纳米晶体的高维纳米制造空间，以确定制造具有器件应用所需光学和光电特性的高性能纳米晶体的最佳纳米制造路线。具有按需和选择性前体加热能力的可重构和模块化连续流反应器在纳米制造中的应用是独特的，也是实现精密制造和扩大生产规模的有力方法，使铜基钙钛矿纳米晶体和其他能源相关材料可以该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。