On the thermal stability and performance evaluation of Si doped transition metal nitride/oxide nanolayered multilayer-based spectrally selective absorber for high-temperature photothermal applications

Barshilia, Harish C.; Niranjan, K.; Srinivas, G.; John, Sabu; Manikandanath, NT

doi:10.1016/j.solmat.2022.111746

Cited by 10 publications

(6 citation statements)

References 35 publications

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“…Figure 8 shows the t of the experimental data results to the form of the equation proposed by Lim [10] for various re ection coe cients R within the range of 0. (continuous line) was obtained for R = 0.6, assuming that p = 0.…”

Section: Resistivitymentioning

confidence: 99%

“…Figure 8 shows the t of the experimental data results to the form of the equation proposed by Lim [10] for various re ection coe cients R within the range of 0.2-0.6. As Mayadas and Shatzkes [26] previously reported, the coe cient for bulk Cu is 0.24; however, its value for thin layers of this material is not known.…”

Section: Resistivitymentioning

confidence: 99%

“…At present, building homogeneous structures that absorb the entire spectrum and energy of radiation coming from the Sun with the available materials is impossible. An auxiliary solution is the use of multilayer, multimaterial structures and manipulation of the thickness of the absorbing area [9], [10].…”

Section: Introductionmentioning

confidence: 99%

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Disturbance of the topography of Cu layers deposited by magnetron sputtering as a potential technique for increasing the absorption area of photovoltaic cells

Grudniewski¹,

Michaluk²

2022

Preprint

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This paper addresses the influence of the sputtering time and hence thickness of thin copper (Cu) layers on the grain size, surface morphology and electrical properties. Cu layers 54–853 nm thick were deposited at room temperature from a Cu target with a sputtering power of 2.07 W⋅cm− 2 in an argon atmosphere at a pressure of 8⋅10− 3 mbar. The structural and electrical properties were determined on the basis of four-contact probe measurements, stylus profilometry, atomic force microscopy (AFM), scanning electron microscopy (SEM) with an X-ray microanalysis (EDS) detector, and X-ray diffraction (XRD). The results of the conducted experiments show that the structure of thin copper layers can significantly change depending on the thickness and deposition process parameters. Three characteristic areas of structural changes and growth of copper crystallites/grains were distinguished. Ra and the RMS roughness linearly increase with increasing film thickness, while the crystallite size significantly changes only for copper films thicker than 600 nm. In addition, the resistivity of the Cu film is reduced to approximately 2 microohm⋅cm for films with a thickness on the order of 400 nm, and a further increase in their thickness does not have a significant effect on their resistivity. This paper also determines the bulk resistance for the Cu layers under study and estimates the reflection coefficient at the grain boundaries.

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Section: Resistivitymentioning

confidence: 99%

Section: Resistivitymentioning

confidence: 99%

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Disturbance of the topography of Cu layers deposited by magnetron sputtering as a potential technique for increasing the absorption area of photovoltaic cells

Grudniewski¹,

Michaluk²

2022

Preprint

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“…For example, Barshilia et al reported a TiAlNbased five-layer SSA on stainless-steel substrates, showing a high absorptance of 95.4% and a low emittance of 7%, together with good thermal stability at 600 °C. 16 Song et al proposed a tandem Al/NbMoN/NbMoON/SiO 2 absorber that exhibits superior optical performances (α = 94.8%; ε = 11%@400 °C), which could be stable up to 500 °C in vacuum. 17 Additionally, similar SSAs, including TiAlN/TiAlON/Si 3 N 4 , 18 CrMoN/ CrON, 19 TiN/TiNO/ZrO 2 /SiO 2 , 20 W/WAlN/WAlON/ Al 2 O 3 , 21 Pt/AlN/TiAlN/AlN/SiO 2 , 22 Cr/AlCrN/AlCrNO/ AlCrO, 23 Cu/TiAlCrN/TiAlN/AlSiN, 24 and W/WSiAlN x / WSiAlOyN x /SiAlO x , 25 also realized improved optical properties and thermal robustness.…”

Section: ■ Introductionmentioning

confidence: 99%

“…With regard to absorber materials, transition-metal cermets are a class of widely reported materials in SSA. , The 3d electron interband transition and ultrahigh melting point of these materials impart the SSA with excellent photon trapping ability and thermal stability, respectively. For example, Barshilia et al reported a TiAlN-based five-layer SSA on stainless-steel substrates, showing a high absorptance of 95.4% and a low emittance of 7%, together with good thermal stability at 600 °C . Song et al proposed a tandem Al/NbMoN/NbMoON/SiO 2 absorber that exhibits superior optical performances (α = 94.8%; ε = 11%@400 °C), which could be stable up to 500 °C in vacuum .…”

Section: Introductionmentioning

confidence: 99%

Medium-Entropy Nitride ZrNbMo-W-N Nanofilm-Based Substrate-Independent Selective Solar Absorber by a Cosputtering Method

Zhao

Liu

et al. 2022

ACS Appl. Energy Mater.

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Harvesting solar energy across the broad spectrum yet suppressing radiative heat loss in the infrared region has essential implications for solarthermal applications. Multicomponent alloy nitride nanofilms are a promising class of materials that boost the solar-thermal conversion efficiency. Here, we build up a medium-entropy nitride ZrNbMo-W-N nanofilm-based selective solar absorber (SSA) by a cosputtering method. By fully studying the optical properties of single-layer ZrNbMo-W-N films, the optimized absorber with a trilayer structure achieves a significant boost in the optical performance, that is, an exceptional solar absorptance of 95.2% and a low emittance of 18.7% (400 °C), as well as angle-insensitive absorption. Moreover, the medium-entropy nitride-based absorber also enables remarkable structural and optical robustness, which retains a sound absorptance of 93.8% and a suppressed thermal emittance of 10.3% after annealing at 400 °C for 168 h, promising great potential for medium-and low-temperature applications. More significantly, our designed SSA can be easily fabricated on various substrates using optimized deposition parameters. In particular, the absorber is well deposited on a flexible cotton substrate, showing excellent solar absorption. It is believed that the combination of a multicomponent strategy and a cosputtering method, which can further modulate optical properties by suitably tailoring the elemental content and species, paves an effective way to investigate this kind of state-ofthe-art solar-thermal materials.

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Structural, mechanical and corrosion resistance of phosphorus-doped TiAlN thin film

et al. 2022

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On the thermal stability and performance evaluation of Si doped transition metal nitride/oxide nanolayered multilayer-based spectrally selective absorber for high-temperature photothermal applications

Cited by 10 publications

References 35 publications

Disturbance of the topography of Cu layers deposited by magnetron sputtering as a potential technique for increasing the absorption area of photovoltaic cells

Disturbance of the topography of Cu layers deposited by magnetron sputtering as a potential technique for increasing the absorption area of photovoltaic cells

Medium-Entropy Nitride ZrNbMo-W-N Nanofilm-Based Substrate-Independent Selective Solar Absorber by a Cosputtering Method

Structural, mechanical and corrosion resistance of phosphorus-doped TiAlN thin film

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