Preparation and characterization of absorbing tubes with spectrally selective coatings using economical methods for low- to mid-temperature solar thermal collectors

Microstructure and optical properties of W/W‐WxN/WOx multilayer metal‐dielectric solar selective absorbing coating

“…As a result, research into novel SSACs is still necessary to increase the service life of collector tubes in CSP systems. 7 At the moment, magnetron sputtering, electron beam evaporation, pulsed laser deposition, and multiarc ion plating are the primary technologies for producing SSACs. Among them, reactive magnetron sputtering coatings have the benefits of high density, high purity, strong adhesion, and uniform film formation, which are very suitable for the large-area industrial production of SSACs.…”

“…Despite significant advances in the field of SSAC, it is evident that the coating has poor high‐temperature stability, a low absorption rate, and other drawbacks. As a result, research into novel SSACs is still necessary to increase the service life of collector tubes in CSP systems 7 …”

New Simple Modification of Dip, Spray and Cathodic Electrodeposition Coating Methods for Wire Coating (3D Coating)

“…Concerning the rising demands in the coating-relied applications, and for further satisfaction of different functions, the art of coating emerged dramatically. Consequently, many experiments have been work on to get different purposes mainly, protection [1][2][3][4], isolation, inorganic anti-corrosion pigments [5], energy and solar cell application [6][7][8][9][10], moreover, sensor functions [11][12][13][14] different of coating methods have been technologically improved for deposition of thin layers on substrates via numerous techniques such as spin coating, wet chemical processes, roll-to-roll coating, dip coating, spray coating, and electrodeposition [15][16][17] each method has diverse gains and drawbacks. Such as, spin coating which is suitable for small, symmetrical, and flat substrates [18,19].…”

Spectrally selective Cu1.5Mn1.5O4 spinel ceramic pigments for solar thermal applications

“…6,7 From the viewpoint of practical application, the solar absorber materials employed in low-to-mid temperature domain such as plate solar collectors exhibits a high solar absorptance in the UV-Vis-NIR solar spectrum and a low thermal emittance in the IR wavelength region. 8 Many research efforts have been devoted to the preparation of the ternary and the binary spinel compounds serving as the solarabsorbing materials in the last decades, for instance, CuFeMnO x , CuCoMnO x , CuMnO x spinels and Cu x Co y O z spinel-like. 9 Kaluža and co-workers have succeeded in fabricating the black colored CuFeMnO 4 spinel powders and CuFeMn-oxide/SiO 2 lm using sol-gel process at the heat-treatment temperature of 500 C. 10 The prepared lm was composed of the upper Cu 1.4 Mn 1.6 O 4 spinel layer and the lower amorphous SiO 2 layer, which exhibited absorptance of around 0.6 and emittance of 0.29-0.39.…”