Designer Oxides: Reactive-Oxide Molecular Beam Epitaxy System

设计氧化物：活性氧化物分子束外延系统

• 批准号: EP/M023958/1
• 负责人: Peter Wahl
• 金额: $ 18.79万
• 依托单位: University of St Andrews
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FM023958%2F1
• 关键词: Designer; Oxides; Reactive; Oxide; Molecular

Advanced materials are a key enabling technology, lying at the heart of every new or improved device or technology application. Oxide-based materials hold enormous promise to deliver a step change across a multitude of technology sectors, with their rich physical properties making them ideal candidates to deliver transformative advances in areas spanning from heterogeneous catalysis to novel quantum electronics. To realise their full potential, however, it is necessary to develop ways to tune their physical properties in order to stablise a desired combination of materials characteristics "on demand" for a given application. We propose the creation of a world-wide unique facility for such a guided synthesis of designer oxide materials, paving the way to next generation oxide-based technologies.The core of this new facility will be a state-of-the art reactive-oxide molecular-beam epitaxy system, enabling the growth of atomic-scale structured transition-metal oxide heterostructures and metastable thin films. It will be coupled to existing state-of-the-art spectroscopic probes including low-temperature scanning tunneling microscopy and spectroscopy and angle-resolved photoemission. This will provide unprecedented feedback on the atomic and electronic structure and the quantum many-body interactions at the heart of the exotic properties of many oxides, revealing how these can be tuned through custom materials growth to create new advanced materials. This will open new avenues for research in correlated electron systems, materials for energy storage and harvesting, catalysis, sensing, quantum technologies and nanoscience, all exploiting tailored states in artificial oxides. It will operate as a shared facility, which we aim to establish as a leading centre for the supply of custom oxide thin films within the UK.

先进材料是一项关键的使能技术，是每一个新的或改进的设备或技术应用的核心。氧化物材料具有在众多技术领域实现跨越式变革的巨大前景，其丰富的物理特性使其成为从异相催化到新型量子电子学等领域实现变革性进步的理想候选材料。然而，为了充分发挥其潜力，有必要开发调整其物理性能的方法，以便针对给定应用“按需”稳定所需的材料特性组合。我们建议创建一个世界范围内独特的设施，用于引导合成设计氧化物材料，为下一代基于氧化物的技术铺平道路。这个新设施的核心将是最先进的活性氧化物分子束外延系统，能够生长原子级结构化过渡金属氧化物异质结构和亚稳态薄膜。它将与现有的最先进的光谱探针相结合，包括低温扫描隧道显微镜和光谱学以及角度分辨光电发射。这将为许多氧化物的奇异特性的核心原子和电子结构以及量子多体相互作用提供前所未有的反馈，揭示如何通过定制材料生长来调整这些材料以创造新的先进材料。这将为相关电子系统、能量存储和收集材料、催化、传感、量子技术和纳米科学的研究开辟新途径，所有这些都利用人造氧化物中的定制状态。它将作为一个共享设施运营，我们的目标是将其建成英国境内领先的定制氧化物薄膜供应中心。

项目成果

Morphology control of epitaxial monolayer transition metal dichalcogenides

• DOI: 10.1103/physrevmaterials.4.014003
• 发表时间: 2020-01-15
• 期刊: PHYSICAL REVIEW MATERIALS
• 影响因子: 3.4
• 作者: Rajan, Akhil;Underwood, Kaycee;King, Philip D. C.
• 通讯作者: King, Philip D. C.