Equipment: MRI: Track 2 Acquisition of the Thermo Fischer Cryogenic Helios 5 CX DualBeam for Materials Science

设备： MRI：Track 2 采购用于材料科学的 Thermo Fischer Cryogenic Helios 5 CX DualBeam

• 批准号: 2320409
• 负责人: Natalia Litchinitser
• 金额: $ 153.08万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-01 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2320409&HistoricalAwards=false
• 关键词: Equipment; MRI; Track; Acquisition; Thermo

The interdisciplinary field of modern materials science focuses on an increasingly smaller scale for understanding and manipulations of optical, mechanical, electrical, and thermal properties of materials, including naturally existing as well as with man-made, engineered materials. Remarkable progress in studying materials on the nanometer-scale is enabled by the advanced, state-of-the-art nanofabrication tools for carving bulk materials, creating and imaging nanoscale features. One of the most versatile nanofabrication and nano-imaging approaches relies on the focused ion beam (FIB) technique, widely used in the development of the latest generation of microelectronic systems, microfluidic chips, photonic and biomedical devices. Recently, the development of cryogenic FIB has further expanded its capabilities, particularly in characterizing materials and systems containing soft and liquid phases, while maintaining sample integrity. The Thermo Scientific™ Helios™ 5 CX DualBeam instrument offers a unique opportunity of handling samples at both room and cryogenic temperatures. Its cryogenic inert-gas sample transfer system enables the safe transfer of samples to gloveboxes and other instruments under cryogenic temperatures, without exposing them to ambient conditions. The instrument contributes to the educational mission of Shared Materials Instrumentation Facility at Duke and in the Research Triangle and Triad Areas enabling the diverse population of graduate, undergraduate, minority and female students to prepare nano- or microfluidic channels, deposition of nano-wires, and fabrication and characterization of micro-electro-mechanical systems. The Thermo Fischer Scientific Cryogenic Helios 5 CX DualBeam for Materials Science is an integrated FIB and scanning electron microscope instrument, enabling a plethora of flexibility to perform nanofabrication, lithography, volumetric imaging, and in-situ measurements. The development of more flexible ion beam columns and in-situ cooling capabilities in this instrument also reduce detrimental effects of Ga+ implantation and ion and electron beam irradiation-induced heating on the sample surface and enable studies of beam-sensitive, soft, and liquid materials. A cryogenic stage in a FIB is especially critical to scanning electron microscopy analysis and transmission electron microscopy specimen preparations for microelectronic, energy storage materials, and two-dimensional materials, which are extremely sensitive to ion and electron beams and can only be imaged and sectioned at cooled temperatures. The Thermo Fischer Scientific Cryogenic Helios 5 CX DualBeam enables a number of cutting-edge research projects including nanofabrication of hyperbolic metastructures for imaging with subwavelength resolution, characterization of hard-soft material interfaces where preparation of a very smooth surface exposing undamaged polymer with the hard domains is critical, studies of cathode-electrolyte interfaces in alkali-ion batteries, analysis of high-performance composites for lithium-metal batteries, investigation of interference effects in superconductor-quantum Hall hybrid structures, ultra-high-resolution imaging and characterization of the catalyst-support for plasmonic catalysts enabling solar ammonia synthesis under concentrated sunlight.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.

现代材料科学的跨学科领域着重于越来越小的规模，以理解和操纵材料的光学，机械，电气和热性能，包括自然存在以及与人造的工程材料。在纳米尺度上研究材料方面的显着进展是由高级，最先进的纳米制造工具来雕刻散装材料，创建和成像纳米级特征的进展。用途最广泛的纳米型和纳米成像方法之一依赖于聚焦的离子束（FIB）技术，该技术广泛用于开发最新一代的微流体系统，微流体芯片，光子和生物医学设备。最近，低温FIB的发展进一步扩大了其能力，尤其是在表征包含软液相的材料和系统的同时，同时保持样品完整性。 Thermo Scientific™Helios™5 CX Dualbeam仪器提供了在房间和低温温度下处理样品的独特机会。它的低温惰性气体样品转移系统使样品在低温温度下将样品安全地转移到手套箱和其他仪器中，而无需将它们暴露于环境条件下。该仪器在杜克大学以及研究三角和三合会的研究中有助于教育使命，从而使研究生，本科，少数群体和女学生的多样性人群为纳米或微功能渠道，纳米 - 摩威的沉积以及微型电子机械系统的制造和表征准备。 Thermo Fischer Scientific Cryogenic Helios 5 CX Dualbeam用于材料科学是一种集成的FIB和扫描电子显微镜仪器，使得能够进行大量的灵活性，以执行纳米型，岩性图，体积图像和静脉测量。该仪器中更灵活的离子束柱和原位冷却能力的发展还降低了GA+植入和离子的探测器影响以及电子束照射引起的样品表面上的加热，并能够研究束敏感，柔软和液体材料。 FIB中的低温阶段对于扫描电子显微镜分析和透射电子显微镜样品制剂尤其至关重要，用于微电源，能源储能材料和二维材料，这些材料对离子和电子束极为敏感，并且只能在冷却温度下成像和截切。 The Thermo Fischer Scientific Cryogenic Helios 5 CX DualBeam enables a number of cutting-edge research projects including nanofabrication of hyperbolic metastructures for imaging with subwavelength resolution, characterization of hard-soft material interfaces where preparation of a very smooth surface exposing unmarked polymer with the hard domains is critical, studies of cathode-electrolyte interfaces in alkali-ion batteries, analysis of锂金属电池的高性能组成，对超导体 - Quantum hall杂交结构的干扰效应的研究，超高分辨率成像以及催化剂支持的催化剂催化剂的表征以及通过浓缩阳光下的Sunthe Sunthemention nistion nistion Indey的代表，并在nsf中综合了nsf的代表，并以此为代表。智力优点和更广泛的影响审查标准。