Journal Article

PUBDB-2025-01919

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png X-ray near-field multi-slice ptychography for in-situ imaging

Roeper, S.Extern*DESY* ; Stachnik, K. (Corresponding author)Extern* ; Voss, J.Extern* ; Hussak, S.-A.Extern*DESY* ; Åstrand, M.Extern* ; Grote, L.XFEL.EU*DESY* ; Wittwer, F.XFEL.EU*DESY* ; Seyrich, M.XFEL.EU*DESY* ; Niese, S.Extern* ; Gawlitza, P.Extern* ; Vogt, U.Extern* ; Schroer, C.XFEL.EU*DESY* ; Koziej, D.Extern* ; Schropp, A. (Corresponding author)XFEL.EU*DESY*

2025
Springer Nature [London]

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Please use a persistent id in citations: doi:10.1038/s41598-025-15610-8  doi:10.3204/PUBDB-2025-01919

Abstract: In-situ imaging of chemical reactions can provide valuable insight into nanoparticle growth and structural evolution. Hard X-ray imaging is an excellent tool for this purpose, as it combines high spatial resolution with high penetration depth, allowing for realistic reaction environments. While far-field ptychography is a well-established method at synchrotron radiation sources, its near-field analog has received less attention. In this work we show that near-field multi-slice ptychography is a competitive method for high-resolution in-situ imaging by studying the formation of gold nanocages via galvanic replacement. Our work extends near-field X-ray ptychography to sub-50 nm spatial resolution by using multilayer Laue lenses. These high numerical aperture optics enable to distinguish sample layers that are separated by less than 100 µm by multi-slicing techniques.

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Contributing Institute(s):

1. FS-PETRA (FS-PETRA)
2. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
3. 05K20GUA - Verbundprojekt 05K2020 - 2019-06104 XStereoVision: Stereoskopische Röntgenmikroskopie zur Untersuchung von Nukleation, Wachstum und Aufbau von Nanopartikeln in 3D (BMBF-05K20GUA) (BMBF-05K20GUA)
4. FS-Proposal: I-20211579 EC (I-20211579-EC) (I-20211579-EC)
5. SFB 1441 C03 - Chemische Bildgebung von strukturierten Katalysatoren mittels hochauflösender Röntgenmikroskopie in 2D und 3D (C03) (446709595) (446709595)
6. DFG project G:(GEPRIS)426888090 - SFB 1441: Verfolgung der aktiven Zentren in heterogenen Katalysatoren für die Emissionskontrolle (TrackAct) (426888090) (426888090)

Experiment(s):

1. PETRA Beamline P06 (PETRA III)

Appears in the scientific report 2025

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