publication . Doctoral thesis . 2008

Cermet based solar selective absorbers : further selectivity improvement and developing new fabrication technique

Nejati, Mohammadreza;
Open Access English
  • Published: 01 Jan 2008
  • Country: Germany
Abstract
Spectral selectivity of cermet based selective absorbers were increased by inducing surface roughness on the surface of the cermet layer using a roughening technique (deposition on hot substrates) or by micro-structuring the metallic substrates before deposition of the absorber coating using laser and imprint structuring techniques. Cu-Al2O3 cermet absorbers with very rough surfaces and excellent selectivity were obtained by employing a roughness template layer under the infrared reflective layer and deposition of the cermet layer at elevated substrate temperatures. Copper and stainless steel plates were laser structured. Through direct laser structuring, solar ...
Subjects
free text keywords: Sonnenkollektor, Cermet, Keramik-Metall-Verbund, Dünne Schicht, Solarabsorber, selektive Schichten, Metall-Keramik-Verbundwerkstoff, Dünnschichten, solar selective absorber, cermet, metal-ceramic composite, solar thermal, ddc:620
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