Metal-dielectric composite optical coatings: underlying physics, main models, characterization, design and application aspects

Stenzel, Olaf; Macleod, Angus

doi:10.1515/aot-2012-0030

Cited by 19 publications

(11 citation statements)

References 16 publications

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“…In such situation Cu and Al island films might present a comparable performance to standard plasmonic materials. However, if d m is too large and approaches the percolation threshold (typically between a few and a few tens of nanometres depending on the material, substrate and its temperature during deposition), islands aggregation takes place and the film behaviour becomes close to that of bulk material [37,38]. Taking into account these observations, a value of d m = 5 nm was chosen for deposition of all 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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“…In consistency with the high effective k-values, their incorporation into interference coatings makes sense when the specification tolerates or even requires certain absorption. Absorbers, neutral attenuators, asymmetric beamsplitters, colour filters or decorative coatings are practical examples [5].…”

Section: Resultsmentioning

confidence: 99%

Effective optical constants of evaporated silver and copper island ultrathin films

Stenzel

Wilbrandt

Kaiser

2013

Optical Interference Coatings

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“…Im Falle eines ausreichend breiten verfügbaren Spektralbereichs und Schichtdicken deutlich kleiner als der minimalen Wellenlänge ist dieses Integral direkt proportional der Massenbelegung (und damit auch der Schichtdicke) des absorptions-und dispersionsfrei gedachten Substrats [18] …”

Section: Discussionunclassified

Optische in‐situ Prozessverfolgung und ‐steuerung

et al. 2013

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Optische Monitoringverfahren haben sich im vergangenen Jahrzehnt als unverzichtbarer Bestandteil einer deterministischen Herstellungsstrategie anspruchsvoller optischer Beschichtungen etabliert. Traditionelle Umsetzungen basieren dabei auf der Messung des Transmissionsspektrums oder alternativ des Reflexionsspektrums direkt an der wachsenden Schicht. Im Falle praktisch absorptions‐ und streufreier Beschichtungen auf transparenten Substraten bieten beide Herangehensweisen grundsätzlich den gleichen Informationsgehalt. Im Falle absorbierender Schichtsysteme sind die Informationen aus dem Transmissionsspektrum und dem Reflexionsspektrum grundsätzlich nicht mehr gleichwertig. In diesem Fall erscheint es sinnvoll, beide Spektren während der Beschichtung gleichzeitig zu registrieren, um ein möglichst vollständiges Bild vom Status der wachsenden Schicht zu erhalten. Wir stellen die Realisierung eines solchen Aufbaus für die Prozessverfolgung und ‐steuerung für branchenübliche Verdampfungsprozesse vor und demonstrieren die Wirkweise am Beispiel des Wachstums von Aluminiumoxidschichten sowie Aluminiumspiegeln.

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Metal-dielectric composite optical coatings: underlying physics, main models, characterization, design and application aspects

Cited by 19 publications

References 16 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

Effective optical constants of evaporated silver and copper island ultrathin films

Optische in‐situ Prozessverfolgung und ‐steuerung

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