HAADF-STEM image analysis for size-selected platinum nanoclusters

xia, Y.1,2; Harrison, P.1; ornelas, I. M.1; Wang, H. L.2; Li, Z. Y.1

2020-02-17

10.1111/jmi.12877

JOURNAL OF MICROSCOPY   影响因子和分区

0022-2720

1365-2818

In this study, size-selected platinum (Pt) nanoclusters were imaged with aberration-corrected scanning transmission electron microscopy in high-angle annular dark field (HAADF) mode. For image analysis, a relatively simple macro program was developed by making the use of existing ImageJ plug-ins. The macro allows effectively for assessing criterions chosen for intensity threshold and filter blurring factors. It can extract the integrated HAADF intensity, peak intensity and projected area of the clusters. Here, the effects of magnification and objective lens defocus on nanocluster measurement were investigated. It was found that the integrated HAADF intensity of Pt clusters is a more robust sample descriptor than the peak intensity and the projected area. The macro program developed is freely available.

Image processing Pt nanoclusters STEM-HAADF

SCI

英语

通讯

Microscopy

Microscopy

WOS:000513569800001

WILEY

BIOLOGY & BIOCHEMISTRY

Web of Science

1.Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen, Guangdong, Peoples R China

xia, Y.,Harrison, P.,ornelas, I. M.,et al. HAADF-STEM image analysis for size-selected platinum nanoclusters[J]. JOURNAL OF MICROSCOPY,2020,279(3):229-233.

xia, Y.,Harrison, P.,ornelas, I. M.,Wang, H. L.,&Li, Z. Y..(2020).HAADF-STEM image analysis for size-selected platinum nanoclusters.JOURNAL OF MICROSCOPY,279(3),229-233.

xia, Y.,et al."HAADF-STEM image analysis for size-selected platinum nanoclusters".JOURNAL OF MICROSCOPY 279.3(2020):229-233.