Tungsten band edge absorber/emitter based on a monolayer of ceramic microspheres

Journal
Optics express  
Volume
23
Issue
19
Start Page
A1236
End Page
A1244
Citation
Optics Express 19 (23): A1236-A1244 (2015)
Publisher DOI
10.1364/OE.23.0A1236
Scopus ID
2-s2.0-84943551520
Publisher
Soc.
We report on a band edge absorber/emitter design for high temperature applications based on an unstructured tungsten substrate and a monolayer of ceramic microspheres. The absorber was fabricated as a monolayer of ZrO2 microparticles on a tungsten layer with a HfO2 nanocoating. The band edge of the absorption is based on critically coupled microsphere resonances. It can be tuned from visible to near-infrared range by varying the diameter of the microparticles. The absorption properties were found to be stable up to 1000°C.
DDC Class
530: Physik
600: Technik
Funding(s)
SFB 986: Teilprojekt C1 - Strukturierte Emitter für effiziente und effektive Thermophotovoltaik  
SFB 986: Teilprojekt C2 - Keramikbasierte hochtemperaturstabile Wärmestrahlungsreflektoren und Strukturfarben  
SFB 986: Teilprojekt C4 - Deposition, Ordnung und mechanische Stabilität von Beschichtungen aus assemblierten Partikeln mit enger Größenverteilung  
Open Access Publizieren 2013 - 2015 / Technische Universität Hamburg-Harburg  
More Funding Information
Financial support from the German Research Foundation (DFG) via SFB 986 “Tailor-Made Multi-Scale Materials Systems: M3”, projects C1, C2, C4 and C6. This publication was supported by the German Research Foundation (DFG) and the Hamburg University of Technology (TUHH) in the funding program “Open Access Publishing”.