scholarly journals Structure, Optical Properties and Thermal Stability of All-Ceramic Solar Selective Absorbing Coatings: A Mini Review

2021 ◽  
Vol 9 ◽  
Author(s):  
Hui Wang
Keyword(s):  
Thermal Stability ◽  
Optical Properties ◽  
Structure Design ◽  
Metal Carbides ◽  
Solar Absorptance ◽  
Spectral Selectivity ◽  
Element Diffusion ◽  
All Ceramic ◽  
Commercial Applications ◽  
Thermal Stability Of

Solar selective absorbing coatings (SSAC) harvest solar energy in the form of thermal energy. Traditional metal-rich SSACs like cermet-based coatings and semiconductor–metal tandems usually exhibit both a high solar absorptance and a low thermal emittance; however, metal nanoparticles can easily oxidize or diffuse at high temperature. Different from these SSACs, the all-ceramic SSACs can keep the superior optical performance at high temperatures by restraining oxidation and metal element diffusion. Besides, the facile and inexpensive fabrication of the all-ceramic SSACs makes it possible for commercial applications. These SSACs are usually a regular combination of transition-metal carbides and nitrides, which show great thermal stability and optical properties simultaneously. The structure design of the SSACs will affect the element diffusion, element oxidation, phase transition, as well as the spectral selectivity obviously. In this article, we review the structure designs of all-ceramic SSACs, and the optical properties and thermal stability of the all-ceramic SSACs in the latest literature are also compared. The purpose of this review is to identify the optimal structure design of the all-ceramic SSAC, and we also present an outlook for the structure design strategy for all-ceramic SSACs with high photothermal conversion efficiency and thermal stability.

Medium-term thermal stability of amorphous Ge2Sb2Te5 flash-evaporated thin films with regards to change in structure and optical properties

2009 ◽  
Vol 517 (16) ◽  
pp. 4694-4697 ◽  
Author(s):  
T. Wagner ◽  
J. Orava ◽  
J. Prikryl ◽  
T. Kohoutek ◽  
M. Bartos ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Stability ◽  
Optical Properties ◽  
Medium Term ◽  
Thermal Stability Of

The effect of Sn doping on the optical properties and thermal stability of rare-earths-doped Na3Gd(VO4)2 double vanadate materials

2020 ◽  
Vol 46 (15) ◽  
pp. 24443-24448
Author(s):  
L. Krishna Bharat ◽  
Harishkumarreddy Patnam ◽  
Zhanna V. Cherepanova ◽  
Jae Su Yu
Keyword(s):  
Thermal Stability ◽  
Optical Properties ◽  
Rare Earths ◽  
Sn Doping ◽  
Thermal Stability Of

Thermal stability of WAlN/WAlON/Al2O3-based solar selective absorber coating

MRS Advances ◽  
2016 ◽  
Vol 1 (41) ◽  
pp. 2807-2813 ◽  
Author(s):  
Atasi Dan ◽  
Kamanio Chattopadhyay ◽  
Harish C. Barshilia ◽  
Bikramjit Basu
Keyword(s):  
Thermal Stability ◽  
Stainless Steel ◽  
Stainless Steel Substrate ◽  
Steel Substrate ◽  
Rf Magnetron Sputtering ◽  
Thermal Conversion ◽  
Solar Absorptance ◽  
Excellent Thermal Stability ◽  
Oxidation In Air ◽  
Thermal Stability Of

AbstractThe solar absorptance property of W/WAlN/WAlON/Al2O3-based coatings, deposited by DC/RF magnetron sputtering on stainless steel substrate was studied by measuring the reflectance spectra in the wavelength range of 250 - 2500 nm. The effect of thermal annealing on the optical properties of the solar selective absorber coatings was investigated. Annealing the coatings at 450°C for 150 hrs in air did not show any significant change in the spectral properties of the absorber coating indicating the excellent thermal stability of the coating. The W layer acts as infrared reflective layer and diffusion barrier on stainless steel substrate. The top Al2O3 layer serves as dense shield to protect the under layers from oxidation in air. In summary, the present study indicates the potential application of W/WAlN/WAlON/Al2O3-based selective coatings in high temperature photo thermal conversion systems.

Microstructural, optical properties and thermal stability of MgO/Zr/MgO multilayered selective solar absorber coatings

Solar Energy ◽  
2015 ◽  
Vol 111 ◽  
pp. 357-363 ◽  
Author(s):  
Z.Y. Nuru ◽  
M. Msimanga ◽  
T.F.G. Muller ◽  
C.J. Arendse ◽  
C. Mtshali ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Optical Properties ◽  
Solar Absorber ◽  
Thermal Stability Of

Optical properties and thermal stability of pulsed-sputter-deposited AlxOy/Al/AlxOy multilayer absorber coatings

2009 ◽  
Vol 93 (3) ◽  
pp. 315-323 ◽  
Author(s):  
Harish C. Barshilia ◽  
N. Selvakumar ◽  
G. Vignesh ◽  
K.S. Rajam ◽  
A. Biswas
Keyword(s):  
Thermal Stability ◽  
Optical Properties ◽  
Sputter Deposited ◽  
Thermal Stability Of

High Thermal Stability of Mo/Si3N4/Mo/Si3N4/SiO2 Multilayer Solar Selective Coatings

2015 ◽  
Vol 1102 ◽  
pp. 67-71 ◽  
Author(s):  
Rui Hua Yang ◽  
Jin Yang Liu ◽  
Li Mei Lin ◽  
Fa Chun Lai ◽  
Yan Qu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
High Temperature ◽  
Multilayer Structure ◽  
High Thermal Stability ◽  
Solar Absorptance ◽  
Selective Coating ◽  
Thermal Emittance ◽  
Quartz Substrates ◽  
Thermal Stability Of

In terms of good optical properties and high thermal stability, Mo/Si3N4/Mo/Si3N4/SiO2 coatings based on metal/dielectric multilayer structure were adapted to the solar selective coating at high operating temperatures. The coatings exhibited high solar absorptance in the range of 0.924 ~ 0.936 and low thermal emittance of 0.114 ~ 0.118. The coatings deposited on quartz substrates were thermally stable up to 625 °C in air for 2 h, while they were degraded at 650 °C from the characterization of the absorptance and emittance. The degradation of the coatings was mainly due to the oxidation of molybdenum in air, which was confirmed by Raman spectroscopy. Compared with the thermal stability in air, the coatings were much more stable in vacuum under high temperature. The remarkable thermal stability of the Mo/Si3N4/Mo/Si3N4/SiO2 coatings in air and in vacuum makes them suitable to be applied at high temperature applications.

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