Acquisition of Electron Microscope Upgrade to Implement Environmental Capability for Materials Research and Education

最先进的（扫描）透射电子显微镜（TEM）将升级为环境TEM，允许在高达8托的压力和高达900摄氏度的温度下进行近原子分辨率的成像。这些能力对于纳米科学，生物技术和环境科学研究至关重要。近原子尺度的模式将由吸附在表面上的分子的电子束分解来定义。对气液固相生长的硅纳米柱的原位研究将有助于快速优化工艺，从而在技术相关的硅（100）表面上生长。利用基因工程成骨细胞合成的人工骨的表征将通过水合标本成像的能力得到促进。在高压和高温下的成像将被用来发现对温室气体的矿物隔离有用的新材料。这些先进的表征能力将完全整合到课堂学习体验中，并将显著增强工业拓展，促进学术/工业知识转移。最先进的（扫描）透射电子显微镜（TEM）将升级为环境TEM，允许在高达8托的压力和高达900摄氏度的温度下对各种样品进行近原子分辨率成像。这些能力对于亚利桑那州立大学战略重点领域的前沿研究至关重要，包括纳米科学和技术，生物技术和环境科学。具体来说，电子束刺激表面化学将用于书写近原子尺度的图案，实时成像将用于优化硅纳米柱形成的工艺条件，组织工程人工骨的表征以及温室气体矿物封存的原位研究。该仪器的先进表征能力将通过与Goldwater材料可视化设施的互联网连接完全集成到亚利桑那州立大学的课堂学习中。此外，这些能力将加强我们非常成功的工业协会计划所促进的学术/工业知识转移。

A state-of-the art (scanning)transmission electron microscope (TEM)will be upgraded to an environmental TEM allowing near-atomic resolution imaging at pressures up to 8 Torr and temperatures up to 900 degree C. These capabilities are vital for proposed nanoscience, biotechnology and environmental science research. Near-atom-scale patterns will be defined by electron-beam decomposition of molecules adsorbed on surfaces. In situ investigation of vapor-liquid-solid grown Si nanopillars will facilitate rapid process optimization allowing growth on technologically relevant Si(100) surfaces. Characterization of artificial bone synthesized using genetically engineered osteoblasts will be facilitated by the capability for imaging hydrated specimens. Imaging at elevated pressure and temperature will be employed to discover novel materials useful for mineral sequestration of greenhouse gases. These advanced characterization capabilities will be fully integrated into the classroom learning experience and will significantly enhance industrial outreach facilitating academic/industrial knowledge transfer.%%% A state-of-the art (scanning)transmission electron microscope (TEM)will be upgraded to an environmental TEM allowing near-atomic resolution imaging of diverse samples at pressures of up to 8 Torr and temperatures of up to 900 degree C. These capabilities are vital for cutting edge research proposed in strategic thrust areas at ASU including nanoscience and technology, biotechnology and environmental science. Specifically, electron beam stimulated surface chemistry will be employed for writing near atomic scale patterns, real-time imaging will be used to optimize process conditions for Si nanopillar formation, characterization of tissue engineered artificial bone and in situ investigation of mineral sequestration of greenhouse gases. The advanced characterization capabilities of this instrument will be fully integrated into classroom learning at ASU through its internet connection to the Goldwater Materials Visualization Facility. Further, these capabilities will enhance academic/industrial knowledge transfer facilitated by our highly successful Industrial Associates program.