Search: WFRF:(Zhao Liqing) >
Optical design and ...
Optical design and co-sputtering preparation of high performance Mo-SiO2 cermet solar selective absorbing coating
-
Zheng, Liqing (author)
-
Gao, Fangyuan (author)
-
- Zhao, Shuxi (author)
- Uppsala universitet,Fasta tillståndets fysik
-
show more...
-
Zhou, Fuyun (author)
-
Nshimiyimana, Jean Pierre (author)
-
Diao, Xungang (author)
-
show less...
-
(creator_code:org_t)
- Elsevier BV, 2013
- 2013
- English.
-
In: Applied Surface Science. - : Elsevier BV. - 0169-4332 .- 1873-5584. ; 280, s. 240-246
- Related links:
-
https://urn.kb.se/re...
-
show more...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- In order to optimize and prepare high performance Mo-SiO2 cermet solar selective absorbing coating, a series of Mo-SiO2 cermet films with different metal volume fraction were deposited on optical glass using mid-frequency (MF) and radio frequency (RF) co-sputtering. The reflectance (R) and transmittance (T) in the wavelength range of 250-2500 nm have been simulated using SCOUT software with different dielectric function models. The optical constants, film thickness, metal volume fraction and other parameters have been deduced from the modeling. The fitted optical constants were then used to simulate and optimize the Mo-SiO2 solar selective coating and samples were prepared based on the optimized parameters. The Maxwell Garnett (MG) and Bruggeman (BR) effective-medium theory have been added in the dielectric function models to describe low metal volume fraction cermet layer (LMVF) and high metal volume fraction cermet layer (HMVF), separately. The optical spectra (R and T) of all single films were in a good agreement with the fitted spectra by dielectric function models. The experimental measured reflectance of the solar selective coating was also in rather good agreement with the optimized result. The solar absorptance of theoretically optimized selective coating was 0.945, while the absorptance of the experimental coating was 0.95. The thermal emittance of 0.15 (at 400 degrees C) was obtained.
Keyword
- Solar selective coating
- Mo-SiO2
- Cermet film
- Optical performance
- Teknisk fysik med inriktning mot fasta tillståndets fysik
- Engineering Science with specialization in Solid State Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database