Structure and morphology of nickel-alumina/silica solar thermal selective absorbers
2011 (English)In: Journal of Non-Crystalline Solids, ISSN 0022-3093, E-ISSN 1873-4812, Vol. 357, no 5, 1370-1375 p.Article in journal (Refereed) Published
Nickel-alumina/silica thin film materials for the use in solar thermal absorbers have been investigated using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and Elastic Recoil Detection Analysis (ERDA). The TEM images revealed that all layers have a very small thickness variation and that the layers are completely homogenous. High resolution images showed 5-10 nm (poly) crystalline nickel nano-particles. ERDA showed that both the silica and alumina compositions contain more oxygen than 2:1 and 3:2 respectively. SEM showed the surface morphology and characteristics of the top silica anti-reflection layer. Hybrid-silica has showed to generate a smoother surface with less cracking compared to pure silica. The final curing temperature revealed to be of importance for the formation of cracks and the surface morphology.
Place, publisher, year, edition, pages
2011. Vol. 357, no 5, 1370-1375 p.
Solar, Absorber, SEM, TEM, ERDA
Engineering and Technology Inorganic Chemistry
Research subject Chemistry with specialization in Inorganic Chemistry; Engineering Science with specialization in Solid State Physics
IdentifiersURN: urn:nbn:se:uu:diva-151660DOI: 10.1016/j.jnoncrysol.2010.09.023ISI: 000288726700004OAI: oai:DiVA.org:uu-151660DiVA: diva2:410910