High-temperature solar selective absorbing coatings for concentrated solar power systems

Zayed, Mohamed E.; Elsheikh, Ammar H.; Essa, F.A.; Elbanna, Ahmed Mohamed; Li, Wenjia; Zhao, Jianlin

doi:10.1016/b978-0-12-822838-8.00010-7

Cited by 4 publications

(2 citation statements)

References 133 publications

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“…To enhance light absorption, a smoother transition of the optical constant from the absorber to air is needed, which is provided by the dielectric layer that covers the absorber 18,19 . As multilayer solar selective coatings remain stable at a temperature above 400 °C, the further application can be attributed to the high-temperature range 20 . Сermet-based solar absorbers are the incorporated metal particles in a dielectric or ceramic matrix 21 .…”

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confidence: 99%

Unraveling the optoelectronic properties of CoSbx intrinsic selective solar absorber towards high-temperature surfaces

Taranova,

Akbar,

Yusupov

et al. 2023

Nat Commun

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The combination of the ability to absorb most of the solar radiation and simultaneously suppress infrared re-radiation allows selective solar absorbers (SSAs) to maximize solar energy to heat conversion, which is critical to several advanced applications. The intrinsic spectral selective materials are rare in nature and only a few demonstrated complete solar absorption. Typically, intrinsic materials exhibit high performances when integrated into complex multilayered solar absorber systems due to their limited spectral selectivity and solar absorption. In this study, we propose CoSbx (2 < x < 3) as a new exceptionally efficient SSA. Here we demonstrate that the low bandgap nature of CoSbx endows broadband solar absorption (0.96) over the solar spectral range and simultaneous low emissivity (0.18) in the mid-infrared region, resulting in a remarkable intrinsic spectral solar selectivity of 5.3. Under 1 sun illumination, the heat concentrates on the surface of the CoSbx thin film, and an impressive temperature of 101.7 °C is reached, demonstrating the highest value among reported intrinsic SSAs. Furthermore, the CoSbx was tested for solar water evaporation achieving an evaporation rate of 1.4 kg m−2 h−1. This study could expand the use of narrow bandgap semiconductors as efficient intrinsic SSAs with high surface temperatures in solar applications.

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mentioning

confidence: 99%

Unraveling the optoelectronic properties of CoSbx intrinsic selective solar absorber towards high-temperature surfaces

Taranova,

Akbar,

Yusupov

et al. 2023

Nat Commun

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show abstract

“…The top dielectric layer increases the absorption in the visible region and, as a result, broaden the region of high absorption. As multilayer solar selective coatings remain stable at a temperature above 400 °C, the further application can be attributed to the high-temperature range 21 . Сermet-based solar absorbers are the incorporated metal particles in a dielectric or ceramic matrix 22 .…”

Section: Mainmentioning

confidence: 99%

Surface Temperature above 100 °C under Solar Light through Intrinsic Selective Solar Absorbers

Vomiero

Taranova

Akbar

et al. 2022

Preprint

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The combination of the ability to absorb most of the solar radiation and simultaneously suppress infrared re-radiation allows selective solar absorbers to maximize solar energy to heat conversion, which is critical to several advanced applications1,2. The intrinsic spectral selective materials are rare in nature and only a few demonstrated complete solar absorption3. Typically, intrinsic materials exhibit high performances only when they are integrated as a component in multilayered complex solar absorbers, due to their limited spectral selectivity and solar absorption4. In this study, we propose CoSbx(2<x<3) as a new and highly efficient selective solar absorber. The low bandgap nature of CoSbx endows broadband solar absorption of 0.98 over the solar spectral range and simultaneous low emissivity (0.18) in the mid-infrared region. Here we report a high intrinsic spectral solar selectivity of 5.4 for the nanostructured narrow bandgap semiconductor CoSbx. Under 1 sun illumination, the heat concentrates on the surface of the thin film of CoSbx, and a high temperature of 101.7 °C is reached, demonstrating the highest value among reported selective solar absorbers. Furthermore, the CoSbx was tested for solar water evaporation achieving an evaporation rate of 1.4 kg∙m-2∙h-1. This study may broaden the application of narrow bandgap semiconductors for use as highly efficient intrinsic selective solar absorbers and high surface temperature usage under solar illumination.

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Experimental study on a novel CO2-responsive foam fluid for fracturing and its key performance

Zheng,

Zhu,

Yang

et al. 2025

Fuel

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High-temperature solar selective absorbing coatings for concentrated solar power systems

Cited by 4 publications

References 133 publications

Unraveling the optoelectronic properties of CoSbx intrinsic selective solar absorber towards high-temperature surfaces

Unraveling the optoelectronic properties of CoSbx intrinsic selective solar absorber towards high-temperature surfaces

Surface Temperature above 100 °C under Solar Light through Intrinsic Selective Solar Absorbers

Experimental study on a novel CO2-responsive foam fluid for fracturing and its key performance

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