A review on thermal stability and high temperature induced ageing mechanisms of solar absorber coatings

Zhang, Ke; Lei, Hao; Du, Mingliang; Mi, Jin‐Xiao; Wang, Jining; Meng, Jian

doi:10.1016/j.rser.2016.09.083

Cited by 165 publications

(62 citation statements)

References 151 publications

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“…We can easily demonstrate that there are a number of advantages low temperature deposited materials, for examples: materials permit to build-up devices with the high mechanical flexibility and over large areas, another one is that materials can be processable from solution form which give the opportunity to use inexpensive methods (spin coating, dip-coating, printing) at low temperature. There has been a number reports on the role of low temperature deposited materials in electronic memory devices for the last one decade [9][10][11]. A memory effect has been reported in a large variety of materials, including small organic molecules, nano-particles, polymers and also a variety of device and material configurations.…”

Section: Introductionmentioning

confidence: 99%

Creating Electrical Bistability Using Nano-bits — Application in 2-Terminal Memory Devices

et al. 2017

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Intensive research is currently underway to exploit the highly interesting properties of nano-bits ("nano-sized particles and molecules") for optical, electronic and other applications. The basis of these unique properties is the small-size of these structures which result in quantum mechanical phenomena and interesting surface properties. The small molecules and/or nanoparticles are selected in such a way so that it can create an internal electric in the nanocomposite. We define a nanocomposite is an admixture of small molecules and/or nano-particles and a polymer. We have demonstrated the internal electric field in our devices, made from nanobits (nano-particles and/or molecules) and insulating materials, can contribute to the electrical bistability i.e. two conductive states.

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Section: Introductionmentioning

confidence: 99%

Creating Electrical Bistability Using Nano-bits — Application in 2-Terminal Memory Devices

et al. 2017

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“…), in which metal nanoparticles are imbedded in the dielectric matrix, have reached a high solar absorptance (α solar ≈ 0.90) and low thermal emittance at 100 °C (ε 100 ≈ 0.05, defined in Section S1, Supporting Information). However, the spontaneous diffusion of metal nanoparticles in cermet‐based SSAs at high temperatures (>600 °C) is inevitable, seriously weakening their spectral selectivity and durability. Photonic‐based SSAs (W‐PhC,3a,b Ni‐nanopyramids, etc.)…”

Section: Introductionmentioning

confidence: 99%

Reduced Graphene Oxide–Based Spectrally Selective Absorber with an Extremely Low Thermal Emittance and High Solar Absorptance

et al. 2020

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Carbon‐based black materials exhibit strong solar absorptance (αsolar >0.90), which play key roles in transforming solar energy into available power for solar‐thermal, thermophotovoltaic, thermoelectric, and many other systems. However, because of high thermal emittance (>95%), these carbon‐based materials always cause huge energy loss that hinders the solar‐thermal conversion efficiency tremendously. In this study, a reduced graphene oxide–based spectrally selective absorber (rGO‐SSA) is demonstrated, which possesses a recorded low thermal emittance (≈4%) and high solar absorptance (αsolar ≈ 0.92) by easily regulating the reduction level of inner 2D graphene sheets. Compared to conventional carbon‐based black materials, thermal emittance of this rGO‐SSA is largely reduced by ≈95.8% and the cutoff wavelength of rGO‐SSA is broadband‐tunable that can range from 1.1 to 3.2 µm. More importantly, this simply sol‐gel coated rGO‐SSA has high temperature tolerance at 800 °C for 96 h that is hardly achieved by other cermet‐based or photonic‐based SSAs. Based on this rGO‐SSA, ultrafast solar steam escape (0.94 mg cm−2 s−1) under concentrated solar irradiance is achieved directly. The insight from this study will provide a new strategy for constructing thermally stable carbon‐based SSAs and greatly facilitate the solar‐thermal practical significance.

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“…Solar‐thermal converters are increasingly used in a variety of applications, such as thermoelectric, photochemical, water‐heating, and thermal photovoltaic . Among them, the high conversion efficiency is achieved by solar selective absorber coatings (SSACs).…”

Section: Introductionmentioning

confidence: 99%

Spectral properties and microstructure of sputtered WO_x films for solar conversion applications

Kong

Fan

Wang

et al. 2020

Surface & Interface Analysis

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Tungsten oxides (WO x ) films have gained promising attention in terms of selective solar absorption due to its high intrinsic absorption properties. We fabricated a series of single-layer WO x films on aluminum substrates by a magnetron sputtering system.The optical absorption properties of the film were investigated by spectrophotometer and ellipsometry. We found that the optical properties of the film were very sensitive to the change of the thickness. The result showed the highest α value can reach up 0.82 with the thickness of 26 nm at 0.6 Pa or 70 nm at 1.5 Pa, and both ε values was around 0.05, indicating the high spectral selectivity properties. The different reflectance evolutions presented a wide range of color appearances, such as yellow, reddish, cyan, and blue. Moreover, the surface morphologies and phase structures of single-layer WO x films were investigated by SEM, XRD, and Raman. A WO x /SiO 2 solar selective absorber coating indicated that the as-obtained WO x film was a promising application in solar-thermal conversion. K E Y W O R D Ssolar selective absorber coating, spectral properties, tungsten oxides, chromaticity

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A review on thermal stability and high temperature induced ageing mechanisms of solar absorber coatings

Cited by 165 publications

References 151 publications

Creating Electrical Bistability Using Nano-bits — Application in 2-Terminal Memory Devices

Creating Electrical Bistability Using Nano-bits — Application in 2-Terminal Memory Devices

Reduced Graphene Oxide–Based Spectrally Selective Absorber with an Extremely Low Thermal Emittance and High Solar Absorptance

Spectral properties and microstructure of sputtered WO_x films for solar conversion applications

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A review on thermal stability and high temperature induced ageing mechanisms of solar absorber coatings

Cited by 165 publications

References 151 publications

Creating Electrical Bistability Using Nano-bits — Application in 2-Terminal Memory Devices

Creating Electrical Bistability Using Nano-bits — Application in 2-Terminal Memory Devices

Reduced Graphene Oxide–Based Spectrally Selective Absorber with an Extremely Low Thermal Emittance and High Solar Absorptance

Spectral properties and microstructure of sputtered WOx films for solar conversion applications

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Spectral properties and microstructure of sputtered WO_x films for solar conversion applications