LEAP-HI: Manufacturing of Silicon-based Hybrid Organic-Inorganic Quantum Building Blocks

LEAP-HI：硅基杂化有机-无机量子构件的制造

• 批准号: 2053567
• 负责人: Lorenzo Mangolini
• 金额: $ 200万
• 依托单位: University of California-Riverside
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-08-01 至 2026-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2053567&HistoricalAwards=false
• 关键词: LEAP; HI; Manufacturing; Silicon; based

Quantum computing promises to address our growing need for faster and more energy efficient information processing technologies. Today quantum computers rely on materials and structures that need to be both extremely pure and operated at cryogenic temperatures, a limitation referred to as “the tyranny of low temperature”. These constraints put into question the scalability of quantum computers and, in turn, their potential to manage the sheer magnitude of information generated by modern-day society. This Leading Engineering for America's Prosperity, Health, and Infrastructure (LEAP-HI) project will investigate alternative materials and structures that have the potential to store and optically access quantum information at room temperature. The structures are based on small semiconductor (inorganic) nanoparticles integrated with carefully designed organic molecules. The main outcomes of this project will be (a) a set of design guidelines for these hybrid organic-inorganic structures that optimize the optical and electronic coupling between the two components, and (b) the development of strategies for their manufacturing that, while being novel, are also inherently scalable to large production volumes. Achieving these goals will allow establishing the hybrid organic-inorganic structures as the fundamental building block of the next generation of quantum computers. A broad array of activities including outreach to community colleges, internship into the principal investigator’s laboratories and outreach to the public in collaboration with local museums will be integrated into the research plan. These activities will target students at all levels (from grade school to community colleges), with particular attention towards students from underrepresented groups and the goal of encouraging them to pursue advanced degrees in STEM.This project is centered on silicon quantum dots as the inorganic component of the researched structure. This choice is motivated by their advantageous properties in terms of abundance and sustainability, and by the fact that their processing science is still in its infancy, making this field ripe for critical contributions. The project aims at achieving an unprecedented control over the optoelectronic coupling between silicon quantum dots and surrounding organic semiconducting matrices. This will be realized by grafting transmitter organic molecules onto the surface of the silicon particles, therefore tuning the interfacial chemistry and the bi-directional energy transfer between the two system components. Novel gas-phase processing schemes will be developed to produce silicon quantum dots and immediately graft their surfaces with multi-functional organic groups, providing a rapid and scalable approach to the production of the hybrid structures. Ultrafast spectroscopy will be used to elucidate the role played by interfacial chemistry on the functionality of the hybrid organic-inorganic structures. Atomistic modelling will provide theoretical foundation and guidance to this investigation. The investigators are uniquely qualified to undertake this project, as they bring together expertise in the synthesis of silicon quantum dots, the design of organic-inorganic interfaces, the photo-physical characterization of hybrid systems and the ab-initio modelling of interfacial effects.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.

量子计算有望满足我们对更快，更节能的信息处理技术日益增长的需求。如今，量子计算机依赖于需要在低温温度下既纯净又需要操作的材料和结构，这一限制称为“低温的暴政”。这些约束质疑量子计算机的可扩展性，进而使它们管理现代社会产生的庞大信息的潜力。这项针对美国繁荣，健康和基础设施（LEAP-HI）项目的领先工程将调查有可能在室温下存储和光学访问量子信息的替代材料和结构。这些结构基于与精心设计的有机分子集成的小半导体（无机）纳米颗粒。该项目的主要结果将是（a）这些混合有机无机结构的一组设计准则，这些结构优化了两个组件之间的光学和电子耦合，以及（b）制造策略的制定虽然是新颖的，但也可以固有地扩展到大型生产量。实现这些目标将允许建立混合有机无机结构，成为下一代量子计算机的基本构件。包括向社区大学推广，包括向主要研究者的实验室实习，并与当地博物馆合作向公众宣讲的广泛活动将纳入研究计划。这些活动将针对各个级别的学生（从小学到社区大学），特别关注来自代表性不足的团体的学生，并鼓励他们在STEM中攻读高级学位。该项目以硅量子点为中心是研究结构的无机组成部分。这种选择是由于它们在丰富性和可持续性方面的优势属性所激发的，并且他们的处理科学仍处于起步阶段，这使得该领域的重要贡献成熟了。该项目旨在实现对硅量子点与周围有机半导体材料之间光电耦合的空前控制。这将通过将发射器有机分子接种到硅颗粒表面，从而调整界面化学和两个系统组件之间的双向能传递。新型的气相加工方案将开发出生产硅量子点并立即用多功能有机基团嫁接表面，从而为杂种结构的生产提供了快速且可扩展的方法。超快光谱法将用于阐明界面化学对杂交有机无机结构功能的作用。原子建模将为这项投资提供理论基础和指导。调查人员具有独特的资格进行该项目，因为他们将硅量子点的合成，有机无机界面的设计，混合系统的光物理表征以及AB-Initio建模以及界面效应的AB-Initio建模汇总了这些奖项，这反映了NSF的法定任务和范围的范围，这是NSF的合法遗留，这些奖项均在范围内进行了评估，这表明了NSF的法定任务和范围的支持。 标准。

项目成果

Efficient photon upconversion enabled by strong coupling between silicon quantum dots and anthracene

硅量子点和蒽之间的强耦合实现了高效的光子上转换

• DOI: 10.1038/s41557-023-01225-x
• 发表时间: 2023
• 期刊: Nature Chemistry
• 影响因子: 21.8
• 作者: Wang, Kefu;Cline, R. Peyton;Schwan, Joseph;Strain, Jacob M.;Roberts, Sean T.;Mangolini, Lorenzo;Eaves, Joel D.;Tang, Ming Lee
• 通讯作者: Tang, Ming Lee

Gas-phase grafting for the multifunctional surface modification of silicon quantum dots

硅量子点多功能表面改性的气相接枝

• DOI: 10.1039/d2nr04902c
• 发表时间: 2022
• 期刊: Nanoscale
• 影响因子: 6.7
• 作者: Schwan, Joseph;Wang, Kefu;Tang, Ming Lee;Mangolini, Lorenzo
• 通讯作者: Mangolini, Lorenzo

Efficient Photon Upconversion Enabled by Strong Coupling Between Organic Molecules and Quantum Dots

有机分子与量子点之间的强耦合实现高效光子上转换

• 发表时间: 2022
• 期刊: arXivorg
• 作者: Kefu Wang