Interaction of light with hematite hierarchical structures: Experiments and simulations

Journal article
(Original article)


Publication Details

Author(s): Distaso M, Zhuromskyy O, Seemann B, Pflug L, Mackovic M, Encina ER, Klupp Taylor R, Müller R, Leugering G, Spiecker E, Peschel U, Peukert W
Journal: Journal of Quantitative Spectroscopy & Radiative Transfer
Publisher: Elsevier Ltd
Publication year: 2017
Volume: 189
Pages range: 369-382
ISSN: 0022-4073
Language: English


Abstract


Mesocrystalline particles have been recognized as a class of multifunctional materials with potential applications in different fields. However, the internal organization of nanocomposite mesocrystals and its influence on the final properties have not yet been investigated. In this paper, a novel strategy based on electrodynamic simulations is developed to shed light on how the internal structure of mesocrystals influences their optical properties. In a first instance, a unified design protocol is reported for the fabrication of hematite/PVP particles with different morphologies such as pseudo-cubes, rods-like and apple-like structures and controlled particle size distributions. The optical properties of hematite/PVP mesocrystals are effectively simulated by taking their aggregate and nanocomposite structure into consideration. The superposition T-Matrix approach accounts for the aggregate nature of mesocrystalline particles and validate the effective medium approximation used in the framework of the Mie theory and electromagnetic simulation such as Finite Element Method. The approach described in our paper provides the framework to understand and predict the optical properties of mesocrystals and more general, of hierarchical nanostructured particles.



FAU Authors / FAU Editors

Distaso, Monica Dr.
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Encina, Ezequiel Roberto Dr.
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Klupp Taylor, Robin Prof.
Professur für Nanostructured Particles
Leugering, Günter Prof. Dr.
Lehrstuhl für Angewandte Mathematik
Mackovic, Mirza Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)
Peschel, Ulf Prof. Dr.
Professur für Experimentalphysik
Peukert, Wolfgang Prof. Dr.-Ing.
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Pflug, Lukas Dr.
Lehrstuhl für Angewandte Mathematik
Seemann, Benjamin
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Spiecker, Erdmann Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)
Zhuromskyy, Oleksandr Dr.
Lehrstuhl für Experimentalphysik (Optik)


Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials
Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)
Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)


External institutions
LANXESS AG


How to cite

APA:
Distaso, M., Zhuromskyy, O., Seemann, B., Pflug, L., Mackovic, M., Encina, E.R.,... Peukert, W. (2017). Interaction of light with hematite hierarchical structures: Experiments and simulations. Journal of Quantitative Spectroscopy & Radiative Transfer, 189, 369-382. https://dx.doi.org/10.1016/j.jqsrt.2016.12.028

MLA:
Distaso, Monica, et al. "Interaction of light with hematite hierarchical structures: Experiments and simulations." Journal of Quantitative Spectroscopy & Radiative Transfer 189 (2017): 369-382.

BibTeX: 

Last updated on 2019-29-05 at 08:29