四维扫描透射电子显微镜技术：从材料微观结构到物性分析

冯启龙, 朱翀之, 盛冠, 孙土来, 李永合, 朱艺涵

Four-Dimensional Scanning Transmission Electron Microscopy: From Material Microstructures to Physicochemical Properties

Qilong Feng, Chongzhi Zhu, Guan Sheng, Tulai Sun, Yonghe Li, Yihan Zhu

图7 4D-STEM技术在低剂量领域的应用40, 46, 102

Fig 7 Application of 4D-STEM technology in low dose field. Using the same set of 4D-STEM data collected on the ZSM-5 sample to reconstruct40, 46, 102. (a) The annular dark field image, (b) integrate phase contrast image, (c) single-side band electron ptychography image of ZSM-5, (d) single-side band electron ptychography image of ZSM-5 with a cumulative electron dose of 200 e∙Å?2. Using the same set of 4D-STEM data collected on the bilayer MoSe2/WS2 sample to reconstruct (e) the annular dark field image, (f) iterative electron ptychography image. (g) Iterative electron ptychography image of viral protein with cumulative electron dose of 22.8 e∙Å?2. (h) Enlarged image within the orange boxed area in Fig. 7g. (a–d) Adapted from AIP Publishing publisher. (e, f) Adapted from Springer Nature publisher. (g, h) Adapted from Springer Nature publisher.