This title appears in the Scientific Report :
2021
Please use the identifier:
http://hdl.handle.net/2128/28864 in citations.
Please use the identifier: http://dx.doi.org/10.1021/acs.jpcc.1c06082 in citations.
Neither Sphere nor Cube—Analyzing the Particle Shape Using Small-Angle Scattering and the Superball Model
Neither Sphere nor Cube—Analyzing the Particle Shape Using Small-Angle Scattering and the Superball Model
Accurate characterization of the nanocrystal shape with high statistical relevance is essential for exploiting the strongly shape-dependent properties of cuboidal nanoparticles toward applications. This work presents the development of a new small-angle scattering form factor based on the superball...
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Personal Name(s): | Dresen, Dominique |
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Qdemat, Asmaa / Ulusoy, Seda / Mees, Flore / Zákutná, Dominika / Wetterskog, Erik / Kentzinger, Emmanuel / Salazar-Alvarez, German / Disch, Sabrina (Corresponding author) | |
Contributing Institute: |
Streumethoden; JCNS-2 JARA-FIT; JARA-FIT Streumethoden; PGI-4 |
Published in: |
The journal of physical chemistry |
Imprint: |
Washington, DC
Soc.
2021
|
DOI: |
10.1021/acs.jpcc.1c06082 |
Document Type: |
Journal Article |
Research Program: |
Jülich Centre for Neutron Research (JCNS) (FZJ) Materials – Quantum, Complex and Functional Materials |
Link: |
Restricted Published on 2021-10-15. Available in OpenAccess from 2022-10-15. |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1021/acs.jpcc.1c06082 in citations.
Accurate characterization of the nanocrystal shape with high statistical relevance is essential for exploiting the strongly shape-dependent properties of cuboidal nanoparticles toward applications. This work presents the development of a new small-angle scattering form factor based on the superball geometry. The superball quantifies the characteristic rounding of corners and edges of cuboidal nanoparticles with a single parameter. Applied to small-angle scattering data of sufficiently monodisperse nanoparticles, the superball form factor enables differentiation between the effects of extended particle size distribution and irregular particle shape. The quantitative application of the superball form factor is validated against microscopy data for a series of monodisperse nanoparticles and implemented into the user-friendly, open-source software Sasview. |