Journal Article

PUBDB-2026-00287

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Tracking 2D-to-3D crystal growth of a layered material in situ with X-ray scattering

Marks, M. J.Extern* ; Frank, S.Extern* ; Henriksen, M. L.Extern* ; Jeppesen, H.Extern*DESY* ; Lock, N. (Corresponding author)Extern*

2025
RSC Publ. Cambridge

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Please use a persistent id in citations: doi:10.1039/D5NR00594A

Abstract: The dimensionality of a layered material, i.e. the number of 2D layers bound together, is a structural property underpinning the functional properties of the material. Uncovering synthetic methodologies for controlling dimensionality is therefore crucial for enabling the targeted design of high-functioning materials. This in situ X-ray total scattering study demonstrates the crystal growth of anisotropic Bi24O31Br10, a layered material increasingly utilised for its promising photocatalytic properties. Interlayer and intralayer crystal growth were facilitated by calcining Bi24O31Br10 over the temperature range of 30–600 °C. Analyses of the scattering data were conducted in reciprocal space and real space, combining model-free, model-based, and simulation-based analyses, with all conferring that the Bi24O31Br10 sample exhibits low dimensionality at lower temperatures, which gradually transitions to higher dimensionality as the calcination temperature increases. The inevitable thermal effects brought on by conducting measurements at elevated temperatures were analysed using the Python package, diffpy.morph, facilitating insight into the extent of thermal expansion and vibration throughout the data series, which in turn facilitated a focused analysis of crystal growth in an anisotropic nanomaterial. This study provides novel insight into structural analyses of 2D-to-3D transitions in anisotropic nanomaterials via X-ray scattering, and contributes significantly to the structural understanding of an emerging functional layered material.

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Contributing Institute(s):

1. Experimentebetreuung PETRA III (FS-PET-D)
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)

Experiment(s):

1. PETRA Beamline P02.1 (PETRA III)

Appears in the scientific report 2025

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF >= 5 ; JCR ; National-Konsortium ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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