Structure and thermal stability of spectrally selective absorber based on AlCrON coating for solar-thermal conversion applications

Liu, H.D.; Fu, Tairan; Duan, Minghao; Wan, Qiang; Luo, Chang; Chen, Y.M.; Fu, Dejun; Ren, Feng; Li, Q.Y.; Cheng, Xudong; Yang, Bing; Hu, Xuejiao

doi:10.1016/j.solmat.2016.05.035

Cited by 34 publications

(8 citation statements)

References 26 publications

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“…Samples annealed in air revealed the presence of W in the surface, whereas the ones annealed in vacuum did not. Air stability at larger temperatures has been reported for TiAl\TiAlN\TiAlON\TiAlO at 600 °C for 1 h, TiAlN\TiAlON\Si 3 N 4 at 600 °C for 2 h, and Mo\AlCrON\AlCrO x at 600 °C for 168 h . Recently, W/SiO 2 /Si 3 N 4 multilayers have shown excellent long-term thermal stability in air at 400 °C .…”

Section: Introductionmentioning

confidence: 99%

Role of Al₂O₃ Antireflective Layer on the Exceptional Durability of Mo–Si–N-Based Spectrally Selective Coatings in Air at High Temperature

Céspedes

Rodríguez-Palomo

Salas‐Colera

et al. 2018

ACS Appl. Energy Mater.

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Enhancing the stability of spectrally selective coatings (SSC) at high temperatures in air is necessary to push the concentrated solar power (CSP) technology to the next level. To avoid failures that might not be discovered for years, advanced knowledge of the chemical properties related to the degradation mechanisms with temperature is required. For this purpose, the Mo local environment is investigated here for Mo−Si 3 N 4 and MoSi 2 − Si 3 N 4 nanocomposites SSCs. The atomic short-range order around Mo proves that MoSi 2 is the stable form that appears in high temperature vacuum annealing and that MoO 3 formation is associated with optical degradation in air annealing. Deposition of Al 2 O 3 capping layers with different techniques is found of paramount relevance in the long term performance of MoSi 2 −Si 3 N 4 based SSCs. MoSi 2 −Si 3 N 4 hybrid composite with Al 2 O 3 capping layer shows exceptional functional stability even after 2900 h at 600 °C in air. Antireflective Al 2 O 3 layer synthesized by atomic layer deposition (ALD) shows an extraordinarily efficient protection against oxidation with unprecedented MoSi 2 stability in MoSi 2 −Si 3 N 4 hybrid composite, and optimum long-term optical performance. On the other hand, Al 2 O 3 layer deposited by sputtering blocks the formation of detrimental MoO 3 at 600 °C but allows the formation of MoO 2 in MoSi 2 −Si 3 N 4 for long annealing times which, however, also provides excellent and stable optical functionality related to MoO 2 high stability. KEYWORDS: spectrally selective coating (SSC), concentrated solar power (CSP), solar selective absorbers, high temperature air stability, MoSi 2 −Si 3 N 4 nanocomposite, Al 2 O 3 capping layer, aging

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Section: Introductionmentioning

confidence: 99%

Role of Al₂O₃ Antireflective Layer on the Exceptional Durability of Mo–Si–N-Based Spectrally Selective Coatings in Air at High Temperature

Céspedes

Rodríguez-Palomo

Salas‐Colera

et al. 2018

ACS Appl. Energy Mater.

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“…Therefore, diverse antireflection techniques have been actively investigated to enhance the energy efficiency of optical systems. [5][6][7][8][9] Among them, the textured surfaces (e.g., black silicon (Si) and germanium (Ge)) effectively reduce the reflection in visible and near-infrared ranges, [10][11][12] leading to the development of high performance photonic and optoelectronic devices. [13][14][15] As reported recently, the textured surfaces have the potential to provide efficient antireflection capability in the MIR range.…”

Section: Introductionmentioning

confidence: 99%

A heavily doped germanium pyramid array for tunable optical antireflection in the broadband mid-infrared range

et al. 2022

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“…Numerous studies reported the development of high-temperature-stable SSACs (evacuated) by physical vapor deposition (PVD) methods, and most of the coatings lack thermal stability in the case of vacuum breach due to glass tube breakage . Nevertheless, extensive research has been carried out on the investigation of highly thermally stable SSACs with 500 °C being the largest temperature achieved without degradation. − It is noteworthy that the development of vapor deposition-based spectrally selective absorber coatings is costly due to the involvement of vast and complex instruments requiring high capital investment . Hence, it could be a potential problem in delivering affordable SSACs stable in a nonvacuum condition.…”

Section: Introductionmentioning

confidence: 99%

Cu(Mn_0.748Ni_0.252)₂O₄/SiO₂ Nanoparticle Layers for Wide-Angle Spectral Selectivity and High Thermal Stability

Prasad

Sobha

Koppoju

et al. 2020

ACS Appl. Nano Mater.

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Spectrally selective absorber coatings (SSACs) have attracted tremendous research attention owing to their high efficiency of conversion of solar energy into heat with minimal emittance. In this regard, we have developed a new spinel material (Cu(Mn0.748Ni0.252)2O4) as SSAC by the dip-coating technique. The dual-functional layer (SiO2) is deposited on a spinel absorber to serve as an antireflective and thermal barrier layer for the improvement of solar absorptance and thermal stability. The developed tandem absorber exhibits an excellent solar absorptance (α) of 0.95, low spectral emittance (ε) of 0.14, and good thermal stability up to 500 °C for 250 h. Additionally, the tandem absorber has exhibited outstanding wide-angle solar absorptance with a net enhancement of 5–74% over an angle of incidence ranging from 10 to 80°. The developed coatings were widely characterized by grazing incidence X-ray diffraction, thermogravimetric techniques, high-resolution transmission electron microscopy, and Universal Measurement Accessory to determine the properties. Our findings indicate that the development of spinel-based tandem SSAC by the wet chemical method may reduce the cost of solar thermal systems, and the wide-angle absorption with high thermal stability may open the possibilities of high photothermal conversion efficiencies.

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Structure and thermal stability of spectrally selective absorber based on AlCrON coating for solar-thermal conversion applications

Cited by 34 publications

References 26 publications

Role of Al₂O₃ Antireflective Layer on the Exceptional Durability of Mo–Si–N-Based Spectrally Selective Coatings in Air at High Temperature

Role of Al₂O₃ Antireflective Layer on the Exceptional Durability of Mo–Si–N-Based Spectrally Selective Coatings in Air at High Temperature

A heavily doped germanium pyramid array for tunable optical antireflection in the broadband mid-infrared range

Cu(Mn_0.748Ni_0.252)₂O₄/SiO₂ Nanoparticle Layers for Wide-Angle Spectral Selectivity and High Thermal Stability

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Structure and thermal stability of spectrally selective absorber based on AlCrON coating for solar-thermal conversion applications

Cited by 34 publications

References 26 publications

Role of Al2O3 Antireflective Layer on the Exceptional Durability of Mo–Si–N-Based Spectrally Selective Coatings in Air at High Temperature

Role of Al2O3 Antireflective Layer on the Exceptional Durability of Mo–Si–N-Based Spectrally Selective Coatings in Air at High Temperature

A heavily doped germanium pyramid array for tunable optical antireflection in the broadband mid-infrared range

Cu(Mn0.748Ni0.252)2O4/SiO2 Nanoparticle Layers for Wide-Angle Spectral Selectivity and High Thermal Stability

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Role of Al₂O₃ Antireflective Layer on the Exceptional Durability of Mo–Si–N-Based Spectrally Selective Coatings in Air at High Temperature

Role of Al₂O₃ Antireflective Layer on the Exceptional Durability of Mo–Si–N-Based Spectrally Selective Coatings in Air at High Temperature

Cu(Mn_0.748Ni_0.252)₂O₄/SiO₂ Nanoparticle Layers for Wide-Angle Spectral Selectivity and High Thermal Stability