Development of an Atomic Resolution Analytical Transmission Electron Microscopy Facility for Materials Research and Education

开发用于材料研究和教育的原子分辨率分析透射电子显微镜设备

• 批准号: 0076501
• 负责人: Allan Jacobson
• 金额: $ 24万
• 依托单位: University of Houston
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-08-01 至 2003-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0076501&HistoricalAwards=false
• 关键词: Development; Atomic; Resolution; Analytical; Transmission; Development; Atomic; Resolution; Analytical; Transmission

0076501JacobsonThis is an instrument acquisition award to upgrade a user facility and provide a new capability at the University of Houston and at Rice University. With this new capability, variations in the chemistry and the composition of materials can be detected, even if these changes occur within less than one nanometer within the material. The key to the new technique is the ability to form very small electron probe (less than 0.2 nanometer in diameter) and the ability to precisely position and control the probe. Electrons transmitted through the material contain information about the chemistry of the material at the location of the electron probe. This new capability allows researchers to analyze these electrons. These electrons can also be used to generate a "compositional" image of the material, in addition to the "structural" image. It is anticipated that the close collaboration between the users at the University of Houston and at Rice University initiated with this proposal will lead to transfer of knowledge in modern electron microscopy techniques benefiting the education of undergraduate and graduate students. Educational opportunities will be provided as formal courses in electron microscopy including a laboratory component and through multi-user materials characterization facility (MCF) research experience programs. MCF is also an important component in this educational outreach programs designed to increases K12 student interest and achievement in science and provide opportunities for the development of teachers. ***This is an instrument acquisition award to upgrade a user facility and provide a new capability at the University of Houston and at Rice University. With this new capability, variations in the chemistry and the composition of materials can be detected, even if these changes occur within less than one nanometer within the material. The key to the new technique is the ability to form very small electron probe (less than 0.2 nanometer in diameter) and the ability to precisely position and control the probe. Electrons transmitted through the material contain information about the chemistry of the material at the location of the electron probe. This new capability allows researchers to analyze these electrons. These electrons can also be used to generate a "compositional" image of the material, in addition to the "structural" image. It is anticipated that the close collaboration between the users at the University of Houston and at Rice University initiated with this proposal will lead to transfer of knowledge in modern electron microscopy techniques benefiting the education of undergraduate and graduate students. Educational opportunities will be provided as formal courses in electron microscopy including a laboratory component and through multi-user materials characterization facility (MCF) research experience programs. MCF is also an important component in this educational outreach programs designed to increases K12 student interest and achievement in science and provide opportunities for the development of teachers.%%%

0076501JACOBSONTHTHIS是一项仪器奖，可升级用户设施，并在休斯顿大学和莱斯大学提供新的能力。有了这种新的能力，即使这些变化发生在材料内的纳米分子少于一个纳米内，也可以检测到化学和材料组成的变化。新技术的关键是能够形成非常小的电子探针（直径小于0.2纳米）以及精确定位和控制探针的能力。通过材料传输的电子包含有关电子探针位置的材料化学性质的信息。这种新功能使研究人员可以分析这些电子。除“结构”图像之外，这些电子也可用于生成材料的“组成”图像。预计休斯顿大学用户与赖斯大学的用户之间的密切合作将导致在现代电子显微镜技术中转移知识，从而使本科生和研究生的教育受益。将作为电子显微镜的正式课程提供教育机会，包括实验室组件以及通过多用户材料表征设施（MCF）研究经验计划。 MCF还是该教育外展计划中的重要组成部分，旨在提高K12学生对科学的兴趣和成就，并为教师的发展提供机会。 ***这是一项仪器获取奖，旨在升级用户设施，并在休斯顿大学和莱斯大学提供新的能力。有了这种新的能力，即使这些变化发生在材料内的纳米分子少于一个纳米内，也可以检测到化学和材料组成的变化。新技术的关键是能够形成非常小的电子探针（直径小于0.2纳米）以及精确定位和控制探针的能力。通过材料传输的电子包含有关电子探针位置的材料化学性质的信息。这种新功能使研究人员可以分析这些电子。除“结构”图像之外，这些电子也可用于生成材料的“组成”图像。预计休斯顿大学用户与赖斯大学的用户之间的密切合作将导致在现代电子显微镜技术中转移知识，从而使本科生和研究生的教育受益。将作为电子显微镜的正式课程提供教育机会，包括实验室组件以及通过多用户材料表征设施（MCF）研究经验计划。 MCF还是该教育外展计划中的重要组成部分