arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2110.01656cond-mat.mtrl-sci
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扫描纳米结构X射线显微术

Towards scanning nanostructure x-ray microscopy

Anton Kovyakh, Soham Banerjee, Chia-Hao Liu, Christopher J. Wright, Yuguang C. Li, Thomas E. Mallouk, Robert Feidenhans'l, Simon J. L. Billinge

摘要:

我们展示了空间映射的本地和纳米尺度的结构的薄膜对象使用空间分辨PDF分析同步辐射X射线衍射数据。这是证明在一个实验室芯片上的组合阵列的样品点含有催化有趣的纳米粒子沉积从液体前体使用喷墨液体处理系统。我们提出了一个软件实现的整个协议,包括自动数据采集和分析的方法,使用原子对分布函数(PDF)的方法。该协议软件可以处理半自动化的数据简化,标准化和建模,用户定义的配方生成全面的元数据和分析结果。通过使用包含的函数对集合进行切片,可以使用不同的对比度来构建2D对象的图像,从而使我们能够确定与阵列上局部结构的不同方面相关的空间图。

英文摘要:

We demonstrate spatial mapping of the local and nano-scale structure of thin film objects using spatially resolved PDF analysis of synchrotron x-ray diffraction data. This is demonstrated in a lab-on-chip combinatorial array of sample spots containing catalytically interesting nanoparticles deposited from liquid precursors using an ink-jet liquid handling system. We present a software implementation of the whole protocol including an approach for automated data acquisition and analyis using the atomic pair distribution function (PDF) method. The protocol software can handle semi-automated data reduction, normalization and modelling, with user-defined recipes generating a comprehensive collection of metadata and analysis results. By slicing the collection using included functions it was possible to build images of the 2D object containing using different quantities for contrast, allowing us to determine the spatial map relating to different aspects of the local structure on the array.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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