Presence of spatially vertical FA-Cs phase segregation (IMAGE)

Chinese Academy of Sciences Headquarters

Presence of spatially vertical FA-Cs phase segregation

Caption

a. Illustration graph of inhomogeneous phase distribution caused by out-of-plane FA-Cs segregation. b. Electrostatic potential (ESP) image and molecular structure of PSP. c. Cationsdistribution obtained from Time-of-flight secondary ion mass spectroscopy (ToF-SIMS). d. Atomic percentage profile of the reference (solid line) and the PSP (dash line) extracted from depth-dependent XPS measurements. e-f. High-angle annular dark field (HAADF) transmission electron microscopy images for the reference sample (e) and the PSP treated sample (f) (scale bars refer to 200 nm). g-h. Enlarged GIXRD spectra collected from the bottom side of the reference (g) and PSP (h) treated perovskite films.

Credit

PAN's team

Usage Restrictions

News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only.

License

Original content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.