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240108s2024 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.3c02219
|2 doi
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|a pubmed24n1261.xml
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|a eng
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|a Maiti, S
|e verfasserin
|4 aut
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|a Highly Ordered Monolayers of μm-Sized Polystyrene Spheres Studied by Grazing-Incidence Small-Angle X-ray Scattering, Simulations, and Geometrical Calculations
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 16.01.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Unraveling the two-dimensional (2D) structural ordering of colloidal particles assembled at a flat surface is essential for understanding and optimizing their physical properties. So far, grazing-incidence small-angle X-ray scattering (GISAXS) has been widely used to determine crystallographic information on 2D self-assembled structures of nanosize objects. However, solving the structure of 2D lattices consisting of micrometer (μm)-sized objects still remains a challenge using scattering methods. Here, a model 2D SCALMS (supported catalytically active liquid metal solution) template is fabricated from μm-sized polystyrene (PS) spheres that form a monolayer on top of the flat solid support. GISAXS patterns of the sample were collected for rotation angles around its surface normal in steps of 3°. For every rotation angle, different Bragg-type interference maxima along the out-of-plane (qz) direction were observed. On the basis of simulations of GISXAS patterns of single domains of ordered particle arrangements using the distorted wave Born approximation (DWBA) and validation against a simple geometrical scattering model, the interference maxima could nicely be interpreted to originate from a monolayer of the μm-sized spherical particles which are arranged in domains of hexagonal 2D paracrystalline order. This novel GISAXS evaluation technique serves as a proof of principle for determining the μm-size periodicity of 2D crystalline domains and demonstrates its potential to spatially resolve the relative orientations of such domains with respect to a reference direction
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|a Journal Article
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|a Senavirathna, L N
|e verfasserin
|4 aut
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|a Minguez Bacho, I
|e verfasserin
|4 aut
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1 |
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|a Menath, J
|e verfasserin
|4 aut
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|a Gruber, W
|e verfasserin
|4 aut
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|a Vogel, N
|e verfasserin
|4 aut
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|a Bachmann, J
|e verfasserin
|4 aut
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|a Unruh, T
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 40(2024), 2 vom: 16. Jan., Seite 1185-1194
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:40
|g year:2024
|g number:2
|g day:16
|g month:01
|g pages:1185-1194
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|u http://dx.doi.org/10.1021/acs.langmuir.3c02219
|3 Volltext
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