Columbia University MRSEC on Precision-Assembled Quantum Materials

哥伦比亚大学精密组装量子材料 MRSEC

• 批准号: 2011738
• 负责人: Colin Nuckolls
• 金额: $ 1800万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Cooperative Agreement
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-09-01 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2011738&HistoricalAwards=false
• 关键词: Columbia; University; MRSEC; Precision; Assembled

Nontechnical Description: The Columbia Materials Science and Engineering Center (MRSEC) - Center for Precision-Assembled Quantum Materials P(AQM) partners with faculty at Minority Serving Institutions and explores new materials systems that will enable future quantum technologies, and educates a diverse new generation of scientists and engineers who reach across disciplines to advance the frontiers of knowledge and technology. The PAQM research program comprises two interdisciplinary research groups (IRGs), both of which study materials assembled from lower-dimensional building blocks: the first group creates layered structures by stacking atomically thin sheets, and the second group uses chemically synthesized molecular clusters to create bulk materials. In both systems, the emergent properties can be controlled both by choosing different building blocks and controlling how they are assembled. PAQM seeks to harness this design freedom to create a next generation of quantum materials which provide new ways to manipulate the flow of charge, spin, and energy, and host quantum states such as superconductivity. These new properties will in turn enable future quantum technologies in computing, sensing, and communications like digital memory, switchable absorbers, and new photodetectors. PAQM trains researchers at the high school, community college, undergraduate, and graduate levels in an environment that brings together researchers from multiple science and engineering disciplines. The center engages students and teachers at the elementary and middle school levels to build interest in science. The educational and research activities of the Columbia MRSEC are designed to increase diversity at all levels, particularly in fields related to Materials Science and Engineering. Technical Description: The Columbia MRSEC - PAQM consists of two IRGs focused on materials created by precise assembly of low-dimensional building blocks. IRG1 combines two-dimensional materials into van der Waals heterostructures (vdWH) hosting emergent quantum phenomena. Three classes of quantum phenomena – tunable superfluids, non-equilibrium states, and topological quantum states – motivate this work. IRG1 focuses on foundational materials issues by synthesizing high-purity crystals, creating ultraclean heterostructures, and performing detailed characterization to fully understand structure/property relationships in vdWH. These advances will propel the field and enable harnessing of quantum phenomena underpinning future quantum information, sensing and computing technologies. IRG2 designs and synthesizes atomically precise, functional materials from chemically synthesized molecular clusters (superatoms). Using a closed-loop approach that combines synthesis, theory, and characterization, the IRG2 team develops methods to control the coupling between superatoms. Tuning the superatoms’ electronic, magnetic, vibrational, and symmetry characteristics allows the team to design reconfigurable phase change materials; control directional transport of energy, charge and spin; and achieve emergent quantum phenomena, properties that underpin future technologies including electronics, digital memory, switchable absorbers, and new photodetectors. Investments in new research tools and shared facilities supports this work. These research goals are propelled by collaborations, with major partners including Brookhaven National Laboratory, the Flatiron Institute, and the Max Planck Society. Industrial partnerships and an entrepreneurial seed program support translational efforts toward applications. PAQM education and outreach activities support STEM and materials education at all levels and train the next generation of interdisciplinary materials researchers in the cutting-edge area of quantum materials. Reflecting the diversity of the Columbia MRSEC faculty and its urban location, research and education are integrated with a diversity strategic plan aimed at increasing participation of underrepresented groups in materials science and related fields.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.

非技术描述：哥伦比亚大学材料科学与工程中心(MRSEC) -精密组装量子材料中心（AQM）与少数民族服务机构的教师合作，探索将使未来量子技术成为可能的新材料系统，并培养跨学科的新一代科学家和工程师，以推进知识和技术的前沿。PAQM研究项目包括两个跨学科研究小组（irg），它们都研究由低维建筑块组装而成的材料：第一组通过堆叠原子薄片来创建层状结构，第二组使用化学合成的分子簇来创建块状材料。在这两个系统中，可以通过选择不同的构建模块和控制它们的组装方式来控制突发属性。PAQM试图利用这种设计自由来创造下一代量子材料，这些材料提供了操纵电荷、自旋和能量流动的新方法，并提供了超导等量子态。这些新特性将使未来的量子技术应用于计算、传感和通信领域，如数字存储器、可切换吸收器和新型光电探测器。PAQM在一个将来自多个科学和工程学科的研究人员聚集在一起的环境中培养高中、社区学院、本科和研究生水平的研究人员。该中心吸引了小学和初中的学生和教师，以培养他们对科学的兴趣。哥伦比亚MRSEC的教育和研究活动旨在增加各个层面的多样性，特别是在与材料科学和工程相关的领域。技术描述：哥伦比亚MRSEC - PAQM由两个irg组成，重点是通过精确组装低维构建块创建的材料。IRG1将二维材料结合成范德华异质结构（vdWH），承载突发量子现象。三种类型的量子现象-可调超流体，非平衡态和拓扑量子态-激发了这项工作。IRG1专注于基础材料问题，通过合成高纯度晶体，创建超净异质结构，并进行详细表征，以充分了解vdWH中的结构/性质关系。这些进步将推动该领域的发展，并使利用量子现象成为未来量子信息、传感和计算技术的基础。IRG2从化学合成的分子团簇（超原子）设计和合成原子上精确的功能材料。IRG2团队采用综合、理论和表征的闭环方法，开发了控制超原子之间耦合的方法。调整超原子的电子、磁性、振动和对称特性，使团队能够设计可重构的相变材料；控制能量、电荷和自旋的定向输运；并实现新兴的量子现象，这些特性支撑着未来的技术，包括电子、数字存储器、可切换吸收器和新型光电探测器。对新研究工具和共享设施的投资支持了这项工作。这些研究目标是由合作推动的，主要合作伙伴包括布鲁克海文国家实验室、熨斗研究所和马克斯普朗克学会。工业伙伴关系和创业种子计划支持向应用程序的转化努力。PAQM教育和推广活动支持各级STEM和材料教育，并在量子材料的前沿领域培养下一代跨学科材料研究人员。为了反映哥伦比亚MRSEC教师的多样性及其城市位置，研究和教育与多样性战略计划相结合，旨在增加代表性不足的群体在材料科学和相关领域的参与。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Iterative Synthesis of Contorted Macromolecular Ladders for Fast-Charging and Long-Life Lithium Batteries

• DOI: 10.1021/jacs.2c06527
• 发表时间: 2022-07-25
• 期刊: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
• 影响因子: 15
• 作者: Jin, Zexin;Cheng, Qian;Xu, Yunyao
• 通讯作者: Xu, Yunyao