Interaction of light with hematite hierarchical structures: Experiments and simulations

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 (2017)


Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2017

Journal

Publisher: Elsevier Ltd

Book Volume: 189

Pages Range: 369-382

DOI: 10.1016/j.jqsrt.2016.12.028

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.

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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.

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