Ultrahigh-vacuum system for the synthesis and manipulation of 2D materials and sample transfer to the transmission electron microscope

用于二维材料合成和操作以及将样品转移至透射电子显微镜的超高真空系统

• 批准号: 435874611
• 金额: --
• 依托单位: Eberhard Karls Universität Tübingen
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2020
• 资助国家: 德国
• 起止时间: 2019-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/435874611?language=en
• 关键词: Ultrahigh; vacuum; system; synthesis; manipulation

We plan to build an ultra-high vacuum system that allows the preparation and manipulation of samples for transmission electron microscopy (TEM) as well as a transfer of these samples to the TEM in high vacuum and without exposure to air. Preparation capabilities will include thermal annealing, exposure to plasma and ion irradiation, and the deposition of layers via thermal evaporation. Especially for samples made of 2D materials, a possibility to stack layers on top of each other is planned. In this way, so-called van der Waals heterostructures can be built in a clean way inside the vacuum system. In combination with the controlled and structured modification of 2D materials via ion or electron irradiation, this opens an entirely new avenue for the preparation of synthetic nanostructures.

我们计划建立一个超高真空系统，允许为透射电子显微镜(TEM)准备和操作样品，并在高真空中将这些样品转移到TEM，而不需要暴露在空气中。准备能力将包括热退火、暴露在等离子体和离子照射下，以及通过热蒸发沉积层。特别是对于由2D材料制成的样本，计划了一种将层堆叠在一起的可能性。通过这种方式，所谓的范德华异质结构可以在真空系统中以一种干净的方式建立起来。与通过离子或电子辐照对2D材料进行可控和结构化修饰相结合，这为合成纳米结构的制备开辟了一条全新的途径。