Antireflection, Superhydrophilic Nano-Porous SiO2 Coating based on Aerosol Impact Spray Deposition Technique for Solar PV Module

Alam, Kamran; Ali, Sadiq; Saboor, Abdul; Maoz,; Humayun, Muhammad; Sadiq, Muhammad; Arif, Muhammad

doi:10.3390/coatings9080497

Cited by 19 publications

(7 citation statements)

References 43 publications

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“…Researchers compared and evaluated the impact of self-cleaning coatings on photovoltaic panel power generation. They found that PV modules coated with self-cleaning coatings lost 2.5% of their power output per day, while modules that were uncoated lost 3.3% per day [10,85,86].…”

Section: Self-cleaning Coatingsmentioning

confidence: 99%

A Review of Dust Deposition Mechanism and Self-Cleaning Methods for Solar Photovoltaic Modules

Quan

Zhao

et al. 2022

Coatings

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Large-scale solar photovoltaic (PV) power plants tend to be set in desert areas, which enjoy high irradiation and large spaces. However, due to frequent sandstorms, large amounts of contaminants and dirt are suspended in the air and deposited on photovoltaic modules, which greatly decreases the power efficiency and service life. To clean PV to improve efficiency, many methods were proposed. It was found that the application of the self-cleaning coating on PV modules can effectively reduce dust deposition and improve the efficiency of PV. This paper reviews the dust deposition mechanism on photovoltaic modules, classifies the very recent dust removal methods with a critical review, especially focusing on the mechanisms of super-hydrophobic and super-hydrophilic coatings, to serve as a reference for researchers and PV designers, and presents the current state of knowledge of the aspects mentioned above to promote sustainable improvement in PV efficiency. It was found that the behaviors of dust on photovoltaic modules are mainly deposition, rebound, and resuspension. Particles with a diameter of 1–100 μm are most easily deposited on photovoltaic modules. The use of self-cleaning coatings, especially super-hydrophobic coatings, is beneficial to the rebound and resuspension of particles. The research gaps and development prospects of self-cleaning coatings are also discussed in this paper.

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Section: Self-cleaning Coatingsmentioning

confidence: 99%

A Review of Dust Deposition Mechanism and Self-Cleaning Methods for Solar Photovoltaic Modules

Quan

Zhao

et al. 2022

Coatings

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“…It was demonstrated that the wettability is an important property of the coating because it can have an important impact on the coating durability during its use [36,37]. Furthermore, it was proven that a hydrophobic coating can be achieved by using a lowsurface-energy material to modify a rough surface [38].…”

Section: Contact-angle Measurementsmentioning

confidence: 99%

Effect of Modified Silica Materials on Polyvinyl Chloride (PVC) Substrates to Obtain Transparent and Hydrophobic Hybrid Coatings

Purcar

Rădiţoiu

et al. 2021

Applied Sciences

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In this research, we report a simple and inexpensive way to prepare transparent and hydrophobic hybrid coatings through deposition of different silica materials on polyvinyl chloride (PVC) substrates. The silica materials were prepared using an acid-catalyzed sol–gel method at room temperature (25 ± 2 °C), using alkoxysilanes: tetraethoxysilane (TEOS), as the silica source, and ethoxydimethylvinylsilane (DMVES), triethoxyoctylsilane (OTES), and trimethoxyhexadecylsilane (HDTMES), as modifier agents. The obtained materials were characterized (either as powders or as thin films) by Fourier-transform infrared spectroscopy (FTIR), UV/Vis spectroscopy, transmission electron microscopy (TEM), thermogravimetric analysis (TGA), atomic force microscopy (AFM), spectroscopic ellipsometry (SE), and water contact-angle measurements. UV/Vis spectra showed that the PVC substrate coated with the silica material containing TEOS/DMVES/OTES had a transmittance of about 90% in the wavelength range of 650–780 nm. The water contact angles increased from 83° for uncoated PVC substrate to ~94° for PVC substrates coated with the sol–gel silica materials. These PVC films with hybrid silica coatings can be used as the materials for outdoor applications, such as energy-generating solar panel window blinds or PVC clear Windmaster outdoor blinds.

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“…While possibly less critical in the buildingintegrated PV sector, these phenomena become relevant in a large number of novel potential LSC applications [1] with typical working environments in which dew formation is very common and might strongly impact on device performance. As observed on the sister PV technology, [29][30][31][32][33][34] a significant decay of LSC performance is to be expected in these conditions owing to the reduced absorption efficiency and photon trapping efficiency of the waveguide.…”

Section: Introductionmentioning

confidence: 99%

High‐Efficiency Luminescent Solar Concentrators Based on Antifogging and Frost‐Resisting Fluorescent Polymers: Adding Multiple Functions for Sustained Performance

Corsini

Rizzini

Botta³

et al. 2022

Adv Materials Inter

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Luminescent solar concentrators (LSCs) are light‐management devices able to harvest and downshift sunlight, making it available to edge‐coupled photovoltaic cells for light‐to‐electricity conversion. When operating in real‐life outdoor scenarios, LSCs can be exposed to humid/freezing environments which may yield fogging and frosting, ultimately resulting in detrimental performance decay owing to reduced photon absorption and photon trapping efficiency within the waveguide. To address this issue, the first demonstration of an antifogging/frost‐resisting highly efficient thin‐film LSC is presented in this work, based on a tailored semi‐interpenetrating polymer network serving as the host matrix material, where the antifogging behavior is imparted by the simultaneous presence of hydrophilic and hydrophobic segments in the macromolecular structure, whereas the fluorescent response is achieved via the incorporation of a coumarin‐functionalized methacrylic monomer. By judicious selection and compositional tuning of an additional luminescent guest dopant with excellent spectral match with the fluorescent host matrix, highly efficient (≈98%) energy transfer is achieved. Optimized LSC devices exhibit external and internal photon efficiencies as high as 3.96% and 34.79%, respectively. In addition, persistent and reproducible antifogging/frost‐resisting functionality is demonstrated during aggressive aging tests under UV‐light, with preserved fluorescence emission and prolonged and sustained device efficiency.

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Antireflection, Superhydrophilic Nano-Porous SiO2 Coating based on Aerosol Impact Spray Deposition Technique for Solar PV Module

Cited by 19 publications

References 43 publications

A Review of Dust Deposition Mechanism and Self-Cleaning Methods for Solar Photovoltaic Modules

A Review of Dust Deposition Mechanism and Self-Cleaning Methods for Solar Photovoltaic Modules

Effect of Modified Silica Materials on Polyvinyl Chloride (PVC) Substrates to Obtain Transparent and Hydrophobic Hybrid Coatings

High‐Efficiency Luminescent Solar Concentrators Based on Antifogging and Frost‐Resisting Fluorescent Polymers: Adding Multiple Functions for Sustained Performance

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