Material Aspects in Coating Design

Stenzel, Olaf

doi:10.1007/978-3-642-54063-9_6

Cited by 17 publications

(18 citation statements)

References 30 publications

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“…Previous research on Ag, Au and Cu island films fabricated in this way [12,33,34] indicates that a small amount of deposited metal (mass thickness, d m , in the range 1 to 2 nm) results in well-isolated clusters with nearly spherical shape, closely resembling the morphology described in Section 2.1. Increasing the amount of deposited metal results in larger non-spherical particles with broad size and shape distribution and reduced interparticle distance [35,36]. In such situation Cu and Al island films might present a comparable performance to standard plasmonic materials.…”

Section: Fabrication and Characterisation Of Metal Island Filmsmentioning

confidence: 99%

Plasmonic Nanoparticles and Island Films for Solar Energy Harvesting: A Comparative Study of Cu, Al, Ag and Au Performance

et al. 2019

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Alternative materials that can potentially replace Au and Ag in plasmonics and broaden its application potential have been actively investigated over the last decade. Cu and Al have been usually overlooked as plasmonic material candidates because they are prone to oxidisation. In this work the plasmonic performance of Cu and Al is investigated using numerical simulations of different nanostructures (spheres, cubes, rods and particle dimers) and taking into account the presence of oxidisation. It is shown that geometry can play a dominant role over material properties and the performance of Cu and Al becomes comparable to that of Ag and Au for systems of non-spherical particles and strong electromagnetic coupling among particles. This observation is experimentally confirmed by the fabrication and characterisation of Cu and Al metal island films. Optical characterisation of the samples reveals a comparable performance of these metals to that obtained for Ag and Au and suggests that Cu and Al metal island films can offer an efficient low-cost platform for solar energy harvesting, as shown in water vapour generation proof of concept experiments.

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Section: Fabrication and Characterisation Of Metal Island Filmsmentioning

confidence: 99%

Plasmonic Nanoparticles and Island Films for Solar Energy Harvesting: A Comparative Study of Cu, Al, Ag and Au Performance

et al. 2019

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“…The context of thin films is especially important [1][2][3]. Ideally, the theoretical formalisms regarding the determination of the complex refractive index, = − ( > 0 for absorbing materials), should be developed with a minimal number of approximations.…”

Section: Introductionmentioning

confidence: 99%

Determination of Optical Properties of Thin Films from Ketteler-Helmholtz Dispersion Relations: Application to the Case of Ultraviolet Irradiated Zirconium Oxide

Desforges

Robichaud

Gauvin

2017

Advances in Materials Science and Engineering

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A new method based on the Ketteler-Helmholtz dispersion relations is described. This method allows accurately determining the optical properties of thin films from a single transmittance curve. The case of zirconium oxide thin film postdeposition irradiated with ultraviolet light is analysed. The effect of ultraviolet irradiation is compared with low temperature postdeposition heating. It is shown that both processes have a comparable effect on the optical properties of the films. However, as our analysis leads to inferring that ultraviolet irradiation produces smoother film surfaces, the use of ultraviolet irradiation is an interesting alternative to the heating process. Accordingly, the reduction of light scattering from the interface with air provides films of better optical quality, which is especially valuable in case of multilayer systems.

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“…For absolute measurement of the reflectance at 6° angle of incidence, a VN accessory developed at Fraunhofer IOF has been used [29,30]. Figure 5 shows a sketch as well as photographs of the prepared sample under different illuminations.…”

Section: Sample Preparation and Experimental Setupmentioning

confidence: 99%

Reducing light scattering from surface contaminations by thin film design

Finck

Wilbrandt

Stenzel

et al. 2017

Advanced Optical Technologies

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Abstract:In most applications, contamination of optical thin film coatings is inevitable over time. State-of-the art approaches to tackle this problem are usually based on two strategies -avoiding contamination or removing already existing contamination. We demonstrate that the coating design can be tailored to reduce light scattering and stray light arising from particle contamination. This allows reducing the optical symptoms (light scattering) rather than trying to address the inevitable cause of the problem (contamination) itself. This new approach can consequently be easily combined with state-of-the-art approaches.

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Material Aspects in Coating Design

Cited by 17 publications

References 30 publications

Plasmonic Nanoparticles and Island Films for Solar Energy Harvesting: A Comparative Study of Cu, Al, Ag and Au Performance

Plasmonic Nanoparticles and Island Films for Solar Energy Harvesting: A Comparative Study of Cu, Al, Ag and Au Performance

Determination of Optical Properties of Thin Films from Ketteler-Helmholtz Dispersion Relations: Application to the Case of Ultraviolet Irradiated Zirconium Oxide

Reducing light scattering from surface contaminations by thin film design

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