Enhanced thermal stability and spectral selectivity of SS/TiC-Y/Al 2 O 3 spectrally selective solar absorber by thermal annealing

Gao, Xiang‐Hu; Guo, Zhi-Ming; Geng, Qin; Ma, Peipei; Wang, Aiqin; Liu, Gang

doi:10.1016/j.solener.2016.10.046

Cited by 17 publications

(2 citation statements)

References 27 publications

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“…To best of our knowledge, none of the SSA designs so far has shown stable performance at higher temperatures (≥700°C) under ambient conditions for more than 3 2) Stable performance of SSA at higher temperatures (≥700°C) for more than 30 hours was only reported under vacuum (Cao et al, 2017;Gao et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Spectrally selective solar absorber stable up to 900 °C for 120 h under ambient conditions

et al. 2018

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Concentrated solar power (CSP) technology, which converts sunlight into heat and then electricity, is an attractive alternative to photovoltaics because of its high capacity for thermalenergy storage, which can be converted, to electricity after sunset. As the efficiency of this technology is limited by the Carnot efficiency, higher absorber temperatures are desirable. At high temperatures conversion efficiency is limited by heat loss from solar absorbers via radiation in infrared wavelengths. Hence, it is desirable to develop selective solar absorbers, which can absorb solar radiation while reflecting infrared radiation. It is also important to develop high temperature selective solar absorbers, which can work in ambient conditions to reduce cost as compared to those that work under vacuum. Here, we report a selective solar absorber made of black chrome/ITO/SiO2, deposited on stainless steel, which showed stable performance at 900°C under ambient conditions for 120 hours. The proposed selective solar absorber exhibits an absorptance of 0.9 in the solar spectrum with an infrared emittance of 0.4 beyond wavelengths of 6 µm.

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Section: Introductionmentioning

confidence: 99%

Spectrally selective solar absorber stable up to 900 °C for 120 h under ambient conditions

et al. 2018

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“…In general, the coating material should have a high melting point, a large negative free energy of formation, stable nanocrystals, and no phase change at high temperatures in order to provide good thermal stability. 13 The transition metal W exhibits excellent properties such as high melting point (melting temperature T m = 3693 K), high density, wear resistance, and low thermal emissivity, 14 whereas the excellent diffusion barrier properties of its nitride W 2 N allow it to be stable in high-temperature environments and is commonly used as a diffusion barrier material for microelectronic devices. 15 Furthermore, completely oxidized WO x films have a better-prohibited bandwidth and can be used as antireflective layers.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and optical properties of W/W‐W_xN/WO_x multilayer metal‐dielectric solar selective absorbing coating

Ling

Rui

Wang

et al. 2022

Surface & Interface Analysis

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The solar spectrum selective absorption coating (SSAC), as a core component of the concentrated solar power (CSP) system, faces increasingly stringent performance criteria as concentrated solar thermal power production technology advances and becomes more industrialized. Due to atom interdiffusion at the layer border, the current traditional composition and structure of progressive absorption coatings suffer from coating property loss at high temperatures. In this work, W/W‐WxN/WOx SSACs were prepared utilizing a medium frequency reactive magnetron sputtering approach with transition metal nitride as the absorption layer and WOx film with superior intrinsic absorption as the antireflection layer. The optical properties, structural composition, and thermal stability of the coatings were evaluated and characterized using field emission scanning electron microscopy (FE‐SEM), X‐ray diffractometer (XRD), ultraviolet–visible spectrophotometer (UV‐vis), X‐ray photoelectron spectrometer (XPS), and thermal emission meter, and the coatings' failure model and failure mechanism were established and explained. The experimental results demonstrated that the coating had outstanding spectrally selective absorption performance with an absorbance of 0.90 and thermal emissivity of 0.08 under air circumstances, as well as high thermal stability at 250°C and 20 h.

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Study on Preparation, Application and Modification of Flake Aluminium Powder

Liu

Wang

2022

Springer Proceedings in Physics

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Enhanced thermal stability and spectral selectivity of SS/TiC-Y/Al 2 O 3 spectrally selective solar absorber by thermal annealing

Cited by 17 publications

References 27 publications

Spectrally selective solar absorber stable up to 900 °C for 120 h under ambient conditions

Spectrally selective solar absorber stable up to 900 °C for 120 h under ambient conditions

Microstructure and optical properties of W/W‐W_xN/WO_x multilayer metal‐dielectric solar selective absorbing coating

Study on Preparation, Application and Modification of Flake Aluminium Powder

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Enhanced thermal stability and spectral selectivity of SS/TiC-Y/Al 2 O 3 spectrally selective solar absorber by thermal annealing

Cited by 17 publications

References 27 publications

Spectrally selective solar absorber stable up to 900 °C for 120 h under ambient conditions

Spectrally selective solar absorber stable up to 900 °C for 120 h under ambient conditions

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

Study on Preparation, Application and Modification of Flake Aluminium Powder

Contact Info

Product

Resources

About

Spectrally selective solar absorber stable up to 900 °C for 120 h under ambient conditions

Spectrally selective solar absorber stable up to 900 °C for 120 h under ambient conditions

Microstructure and optical properties of W/W‐W_xN/WO_x multilayer metal‐dielectric solar selective absorbing coating