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Towards scanning nanostructure X-ray microscopy.

Anton Kovyakh1, Soham Banerjee2, Chia-Hao Liu2

  • 1Niels Bohr Institute, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark.

Journal of Applied Crystallography
|August 9, 2023
PubMed
Summary
This summary is machine-generated.

This study presents a new method for mapping nanoscale structures in thin films using X-ray diffraction. The technique enables detailed visualization of material properties for advanced applications.

Keywords:
atomic pair distribution functionnanoparticlesspatial mappingthin films

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Analytical Chemistry

Background:

  • Characterizing local and nanoscale structure in thin films is crucial for understanding material properties.
  • Traditional methods often lack the spatial resolution or comprehensive analysis needed for complex thin film systems.
  • Nanoparticle deposition from liquid precursors offers a versatile route to creating functional thin film materials.

Purpose of the Study:

  • To demonstrate spatial mapping of local and nanoscale structure in thin films.
  • To develop and implement an automated protocol for data acquisition and analysis using spatially resolved pair distribution function (PDF) analysis.
  • To visualize structural insights of catalytically relevant nanoparticles within a lab-on-chip system.

Main Methods:

  • Spatially resolved pair distribution function (PDF) analysis of synchrotron X-ray diffraction data.
  • Ink-jet liquid-handling system for depositing nanoparticles from liquid precursors onto a lab-on-chip array.
  • Automated software protocol for data reduction, normalization, modeling, and metadata generation.

Main Results:

  • Successful spatial mapping of local and nanoscale structure in thin film objects.
  • Demonstration of the protocol on a combinatorial array of catalytically interesting nanoparticles.
  • Generation of images with different contrast features by slicing analysis results, providing structural insights.

Conclusions:

  • The developed protocol enables detailed spatial mapping of nanoscale structures in thin films.
  • Automated data acquisition and analysis using the atomic PDF method streamline the characterization process.
  • This approach offers valuable insights into the local structure of materials, particularly for nanoparticle-based thin films.