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用于纳米材料和软物质研究的同步辐射散射方法

Synchrotron Scattering Methods for Nanomaterials and Soft Matter Research.

作者信息

Narayanan Theyencheri, Konovalov Oleg

机构信息

European Synchrotron Radiation Facility (ESRF), F-38043 Grenoble, France.

出版信息

Materials (Basel). 2020 Feb 6;13(3):752. doi: 10.3390/ma13030752.

Abstract

This article aims to provide an overview of broad range of applications of synchrotron scattering methods in the investigation of nanoscale materials. These scattering techniques allow the elucidation of the structure and dynamics of nanomaterials from sub-nm to micron size scales and down to sub-millisecond time ranges both in bulk and at interfaces. A major advantage of scattering methods is that they provide the ensemble averaged information under in situ and operando conditions. As a result, they are complementary to various imaging techniques which reveal more local information. Scattering methods are particularly suitable for probing buried structures that are difficult to image. Although, many qualitative features can be directly extracted from scattering data, derivation of detailed structural and dynamical information requires quantitative modeling. The fourth-generation synchrotron sources open new possibilities for investigating these complex systems by exploiting the enhanced brightness and coherence properties of X-rays.

摘要

本文旨在概述同步加速器散射方法在纳米材料研究中的广泛应用。这些散射技术能够阐明纳米材料在从亚纳米到微米尺寸范围以及直至亚毫秒时间范围的结构和动力学,无论是在体相还是在界面处。散射方法的一个主要优点是它们能在原位和操作条件下提供系综平均信息。因此,它们与揭示更多局部信息的各种成像技术互为补充。散射方法特别适合探测难以成像的埋藏结构。虽然许多定性特征可以直接从散射数据中提取,但详细结构和动力学信息的推导需要定量建模。第四代同步加速器光源通过利用X射线增强的亮度和相干特性,为研究这些复杂系统开辟了新的可能性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d322/7040635/e68245aac820/materials-13-00752-g001.jpg

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