Role of Anisotropy and Refractive Index in Scattering and Whiteness Optimization
dc.contributor.author | Jacucci, G | |
dc.contributor.author | Bertolotti, J | |
dc.contributor.author | Vignolini, S | |
dc.date.accessioned | 2019-10-15T09:11:21Z | |
dc.date.issued | 2019-09-11 | |
dc.description.abstract | The ability to manipulate light–matter interaction to tailor the scattering properties of materials is crucial to many aspects of everyday life, from paints to lighting, and to many fundamental concepts in disordered photonics. Light transport and scattering in a granular disordered medium are dictated by the spatial distribution (structure factor) and the scattering properties (form factor and refractive index) of its building blocks. As yet, however, the importance of anisotropy in such systems has not been considered. Here, a systematic numerical survey that disentangles and quantifies the role of different kinds and degrees of anisotropy in scattering optimization is reported. It is shown that ensembles of uncorrelated, anisotropic particles with nematic ordering enables to increase by 20% the reflectance of low-refractive index media (n = 1.55), using only three-quarters of material compared to their isotropic counterpart. Additionally, these systems exhibit a whiteness comparable to conventionally used high-refractive index media, e.g., TiO2 (n = 2.60). Therefore, the findings not only provide an understanding of the role of anisotropy in scattering optimization, but they also showcase a novel strategy to replace inorganic white enhancers with sustainable and biocompatible products made of biopolymers. | en_GB |
dc.description.sponsorship | Biotechnology and Biological Sciences Research Council (BBSRC) | en_GB |
dc.description.sponsorship | European Research Council (ERC) | en_GB |
dc.description.sponsorship | Leverhulme Trust | en_GB |
dc.identifier.citation | Published online 11 September 2019 | en_GB |
dc.identifier.doi | 10.1002/adom.201900980 | |
dc.identifier.grantnumber | BB/K014617/1 | en_GB |
dc.identifier.grantnumber | ERC‐2014‐STG H2020 639088 | en_GB |
dc.identifier.grantnumber | RPG‐2016‐129 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/39198 | |
dc.language.iso | en | en_GB |
dc.publisher | Wiley | en_GB |
dc.rights | © 2019 The Authors. Published by WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. | en_GB |
dc.subject | disordered photonics | en_GB |
dc.subject | light‐scattering optimization | en_GB |
dc.subject | scattering | en_GB |
dc.subject | sustainable materials | en_GB |
dc.subject | whiteness | en_GB |
dc.title | Role of Anisotropy and Refractive Index in Scattering and Whiteness Optimization | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2019-10-15T09:11:21Z | |
dc.description | This is the final version. Available from Wiley via the DOI in this record. | en_GB |
dc.identifier.journal | Advanced Optical Materials | en_GB |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2019-08-18 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2019-08-18 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2019-10-15T08:51:06Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2019-10-15T09:11:25Z | |
refterms.panel | B | en_GB |
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Except where otherwise noted, this item's licence is described as © 2019 The Authors. Published by WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.