Aberration-Corrected Scanning Transmission Electron Microscope with atomic resolution spectroscopy under controlled environmental conditions: AC-eSTEM

在受控环境条件下具有原子分辨率光谱的像差校正扫描透射电子显微镜:AC-eSTEM

基本信息

  • 批准号:
    EP/S033394/1
  • 负责人:
  • 金额:
    $ 414.18万
  • 依托单位:
  • 依托单位国家:
    英国
  • 项目类别:
    Research Grant
  • 财政年份:
    2019
  • 资助国家:
    英国
  • 起止时间:
    2019 至 无数据
  • 项目状态:
    未结题

项目摘要

Atomistic structural, electronic and chemical models are the basis of modern material science, with data acquired under regular high vacuum conditions by analysis of mainly static specimens. However, the properties and hence functionality of many materials crucially depend on the environmental conditions to which they are exposed. Accordingly, relevant analyses of structure, composition and properties need to be conducted under controlled continuous dynamic conditions and the vision of this project is to enable and fully integrate the capabilities needed to accomplish these goals to understand nanomaterial-environment interactions, and ultimately to create nanomaterials by design. The overarching vision of this proposal is to fill the need for the fully integrated nanomaterials analysis with single atom sensitivity under dynamic process conditions in environmental conditions. The aim is to provide the state of the art tool available to UK research community to address the outstanding materials problems that underpin a number of EPSRC research themes from manufacturing the future to health and environment. Fully in situ and operando operations are needed to ensure the integrity of sample data. In practice this extends from sample synthesis or activation, through the ensuing operations, reactions or other processes or tests. Hence, resources are sought to establish a state-of-the-art, aberration corrected STEM instrument (200 to 40 kV) with 0.08 nm image resolution and comprehensive analytical functions for chemical and electronic state analysis with electron energy loss spectroscopy (EELS), related imaging filter (GIF), direct electron detection, and elemental analysis with a transformational high sensitivity (and acceptance angle) silicon drift detection (SDD) energy dispersive x-ray (EDX) spectrometer. The new instrument will be modified at York to include added unique functionalities, along the lines of the research led by the group. Methods and some hardware will be transferred from the original proof-of-concept and aged (2005) first generation instrument at York. The advantages of the open aperture 'gas-in-microscope' concept promoted at York are expected to be especially significant at the lower accelerating voltages of 80 and 40 kV to be available to reduce damage due to specimen-electron beam interactions. The new instrument and attendant expertise will be organised, actively promoted, operated and managed as a new national capability with connections to the national SuperSTEM and ePSIC laboratories, including CI representation from both organisations, for advice and user guidance and active assistance external promotion and strategic as well as tactical management. Wide networking will add to the framework for organising the new capability but will not exclude more ad hoc bilateral interactions; in part to promote the core science needed at the heart of such an 'organisation'. The scientific benefits of the proposed centre for excellence in environmental aberration corrected STEM will greatly contribute to the current research initiatives in the UK related to nanomaterials for energy applications, information technologies/internet of things, and catalysis. The key contribution will be in fundamental understanding of the nanomaterials environment interactions enables trough atomistic imaging and analysis of the dynamic processes that take place either during material fabrication or in action. The project will make a significant contribution to what the future of the UK and of the world will look like; through better understanding of societal, scientific, economic, and environmental challenges and opportunities.
原子结构,电子和化学模型是现代材料科学的基础,通过分析主要静态标本在常规高真空条件下获得数据。但是,许多材料的特性及其功能至关重要地取决于其暴露的环境条件。因此,需要在受控的连续动态条件下进行结构,组成和特性的相关分析,并且该项目的愿景是启用并充分整合实现这些目标所需的能力,以了解纳米材料 - 环境相互作用,并最终通过设计创建纳米材料。该建议的总体视野是在环境条件下在动态过程条件下具有单个原子灵敏度的完全集成的纳米材料分析的需求。目的是为英国研究社区提供可用的最先进工具的状态,以解决从制造未来到健康和环境的许多EPSRC研究主题的杰出材料问题。完全需要原位和操作操作来确保样本数据的完整性。实际上,这从样本合成或激活,随之而来的操作,反应或其他过程或测试延伸。 Hence, resources are sought to establish a state-of-the-art, aberration corrected STEM instrument (200 to 40 kV) with 0.08 nm image resolution and comprehensive analytical functions for chemical and electronic state analysis with electron energy loss spectroscopy (EELS), related imaging filter (GIF), direct electron detection, and elemental analysis with a transformational high sensitivity (and acceptance angle) silicon drift detection (SDD) energy dispersive x-ray (EDX)光谱仪。新仪器将在约克(York)进行修改,以沿该小组领导的研究界限,包括添加的独特功能。方法和一些硬件将从约克的原始概念验证和老化(2005)第一代仪器中转移。预计在约克(York)促进的开放孔“气体中气体中的气体”概念的优点在80和40 kV的较低加速电压下将特别重要,以减少由于样品 - 电子束相互作用而造成的损坏。新工具和随之而来的专业知识将被组织,积极促进,运营和管理,作为新的国家能力,与国家超级巨星和Epsic实验室的联系,包括来自两个组织的CI代表,以提供咨询和用户指导和积极的援助外部晋升,以及战略管理以及战术管​​理。广泛的网络将增加组织新功能的框架,但不会排除更多的临时双边互动;部分是为了促进这种“组织”的核心核心科学。拟议的环境畸变卓越中心校正STEM的科学益处将极大地为英国当前的研究计划与能源应用,信息技术/物联网和催化有关的纳米材料有关。关键的贡献将是对纳米材料环境相互作用的基本理解,可以使槽原子成像以及对材料制造或作用过程中发生的动态过程的分析。该项目将为英国和世界的未来做出重大贡献;通过更好地了解社会,科学,经济和环境挑战和机遇。

项目成果

期刊论文数量(0)
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Vlado Lazarov其他文献

Van der Waals interfaces: TI/superconductor and semiconductor
范德华接口:TI/超导和半导体
  • DOI:
  • 发表时间:
    2017
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Arsham Ghasemi;Demie Kepaptsoglou;Kenji Nawa;Susannah Speller;Pedro Galindo;Quentin Ramasse;Kohji Nakamura;Thorsten Hesjedal;Vlado Lazarov
  • 通讯作者:
    Vlado Lazarov
希土類金属における有効オンサイトクーロン相互作用の第一原理的導出と電子構造
稀土金属有效现场库仑相互作用和电子结构的第一性原理推导
  • DOI:
  • 发表时间:
    2017
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Arsham Ghasemi;Demie Kepaptsoglou;Kenji Nawa;Susannah Speller;Pedro Galindo;Quentin Ramasse;Kohji Nakamura;Thorsten Hesjedal;Vlado Lazarov;名和憲嗣,秋山亨,伊藤智徳,中村浩次
  • 通讯作者:
    名和憲嗣,秋山亨,伊藤智徳,中村浩次
希土類金属における有効オンサイトクーロン相互作用の第一原理計算
稀土金属有效现场库仑相互作用的第一性原理计算
  • DOI:
  • 发表时间:
    2016
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Arsham Ghasemi;Demie Kepaptsoglou;Kenji Nawa;Susannah Speller;Pedro Galindo;Quentin Ramasse;Kohji Nakamura;Thorsten Hesjedal;Vlado Lazarov;名和憲嗣,秋山亨,伊藤智徳,中村浩次;名和憲嗣,秋山亨,伊藤智徳,中村浩次
  • 通讯作者:
    名和憲嗣,秋山亨,伊藤智徳,中村浩次

Vlado Lazarov的其他文献

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{{ truncateString('Vlado Lazarov', 18)}}的其他基金

Spectroscopic Detection of Magnetic Scattering and Quasiparticles at Atomic Resolution in the Electron Microscope
电子显微镜中原子分辨率的磁散射和准粒子的光谱检测
  • 批准号:
    EP/Z531194/1
  • 财政年份:
    2024
  • 资助金额:
    $ 414.18万
  • 项目类别:
    Research Grant
Half metal oxides: In search for 100% spin polarised materials
半%20金属%20氧化物:%20In%20search%20for%20100%%20spin%20极化%20材料
  • 批准号:
    EP/K013114/1
  • 财政年份:
    2013
  • 资助金额:
    $ 414.18万
  • 项目类别:
    Research Grant
Half-metallic ferromagnets: materials fundamentals for next-generation spintronics
半金属铁磁体:下一代自旋电子学的材料基础
  • 批准号:
    EP/K03278X/1
  • 财政年份:
    2013
  • 资助金额:
    $ 414.18万
  • 项目类别:
    Research Grant

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Characterization and design of heteropoly acid catalysts using aberration-corrected transmission scanning electron microscopy
使用像差校正透射扫描电子显微镜表征和设计杂多酸催化剂
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