Structural analysis of nanocrystals by pair distribution function combining electron diffraction with crystal tilting

doi:10.1107/S2052252524001064

	Structural analysis of nanocrystals by pair distribution function combining electron diffraction with crystal tilting
	Linshuo,Guo1 ; Shitao,Wu1 ; Zhengyang,Zhou 2; Yanhang,Ma1
	2024-03
发表期刊	IUCRJ (IF:2.9[JCR-2023],3.3[5-Year])
ISSN	2052-2525
卷号	11
发表状态	已发表
DOI	10.1107/S2052252524001064
摘要	As an important characterization method, pair distribution function (PDF) has been extensively used in structural analysis of nanomaterials, providing key insights into the degree of crystallinity, atomic structure, local disorder etc. The collection of scattering signals with good statistics is necessary for a reliable structural analysis. However, current conventional electron diffraction experiments using PDF (ePDF) are limited in their ability to acquire continuous diffraction rings for large nanoparticles. Herein, a new method - tilt-ePDF - is proposed to improve the data quality and compatibility of ePDF by a combination of electron diffraction and specimen tilting. In the present work, a tilt-series of electron diffraction patterns was collected from gold nanoparticles with three different sizes and a standard sample polycrystalline aluminium film for ePDF analysis. The results show that tilt-ePDF can not only enhance the continuity of diffraction rings, but can also improve the signal-to-noise ratio in the high scattering angle range. As a result, compared with conventional ePDF data, tilt-ePDF data provide structure parameters with a better accuracy and lower residual factors in the refinement against the crystal structure. This method provides a new way of utilizing ePDF to obtain accurate local structure information from nanoparticles.
关键词	electron pair distribution functions local structures crystal tilting nanoparticles PDF refinement
URL	查看原文
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China["22222108","12027804"] ; Shanghai Science and Technology Plan[21DZ2260400] ; Shanghai Government[23JC1404000] ; National Key Research and Development Program of China[2022YFA1506000] ; Ch-EM, School of Physical Sciences and Technology, ShanghaiTech University[EM02161943] ; Analytical Instrumentation Center, School of Physical Sciences and Technology, ShanghaiTech University[SPSTAIC10112914]
WOS研究方向	Chemistry ; Crystallography ; Materials Science
WOS类目	Chemistry, Multidisciplinary ; Crystallography ; Materials Science, Multidisciplinary
WOS记录号	WOS:001207570700009
出版者	INT UNION CRYSTALLOGRAPHY
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/362279
专题	物质科学与技术学院_PI研究组_马延航组物质科学与技术学院_博士生
通讯作者	Shitao,Wu; Zhengyang,Zhou; Yanhang,Ma
作者单位	1.School of Physical Science and Technology, and Shanghai Key Laboratory of High-resolution Electron Microscopy, ShanghaiTech University, Shanghai 201210, People's Republic of China 2.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
第一作者单位	物质科学与技术学院
通讯作者单位	物质科学与技术学院
第一作者的第一单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Linshuo,Guo,Shitao,Wu,Zhengyang,Zhou,et al. Structural analysis of nanocrystals by pair distribution function combining electron diffraction with crystal tilting[J]. IUCRJ,2024,11.
APA	Linshuo,Guo,Shitao,Wu,Zhengyang,Zhou,&Yanhang,Ma.(2024).Structural analysis of nanocrystals by pair distribution function combining electron diffraction with crystal tilting.IUCRJ,11.
MLA	Linshuo,Guo,et al."Structural analysis of nanocrystals by pair distribution function combining electron diffraction with crystal tilting".IUCRJ 11(2024).