Graded Refractive Index Anti-Reflective Coatings for Solar Panels

Anti-reflective film layer for photovoltaic glass that combines high-performance anti-reflective properties with improved durability and environmental stability. The film comprises a main anti-reflective layer comprising nano-silica dispersion, hollow silica particles, and pore-forming agent, with a secondary anti-reflective layer comprising fluorine-containing resin, curing agent, and nano-scale inorganic particles. The film achieves enhanced anti-reflective performance while maintaining superior optical clarity and environmental resistance compared to conventional anti-reflective coatings.

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Coating solution composition for solar modules that prevents reflection and contamination through a novel hybrid composite material. The composition combines SiO2 and TiO2 in a specific ratio to achieve both anti-reflective and anti-soiling properties. The composition is synthesized through a room-temperature curing process and electrostatic spray coating method, enabling effective protection of solar modules in field environments without compromising their performance.

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A nanoscale coating for solar photovoltaic panels that enhances light transmission while maintaining hydrophobic properties. The coating employs nanoparticles with controlled hydrophobicity and surface roughness to prevent dust and organic impurities from adhering to the solar panel surface. This nanoscale coating achieves high light transmission while maintaining the panel's self-cleaning capability, enabling continuous operation without manual cleaning.

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A multi-layer antireflection film for improving short-wave quantum efficiency of solar cells by reducing light loss and enhancing antireflection. The film is made of sequentially stacked layers of silicon nitride, silicon oxynitride, and silicon oxide films on a substrate. This laminated structure provides a graded index profile that matches the refractive index of silicon over the visible spectrum, minimizing reflection losses compared to abrupt index transitions. The layers can be deposited using plasma-enhanced chemical vapor deposition (PECVD) techniques.

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A photovoltaic cell supporting LOW-E coated glass with enhanced spectral performance and thermal management capabilities. The cell comprises a glass substrate with a composite coating comprising multiple layers of anti-reflective, seed layers, infrared reflectors, protective layers, and dielectric layers. The coating is applied in sequence from the inside of the glass to the outside, with each layer strategically positioned to optimize spectral transmission and thermal insulation properties.

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A water-based coating for solar panels that minimizes reflections while maintaining dirt and dust repellency. The coating, comprising a silicon dioxide-based liquid, is applied to the solar module surface either during production or post-installation. This coating reduces light scattering and reflection while preventing dirt and dust accumulation, resulting in improved light transmission.

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Anti-reflection film for solar cells, specifically perovskite solar cells, that reduces light reflection and improves conversion efficiency. The film consists of two opposing layers on the cell substrate. One layer has a higher refractive index film followed by a lower refractive index film. The other layer has a lower refractive index film followed by a higher refractive index film. This multilayer stack with alternating high and low index films provides anti-reflection.

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A coating material for photovoltaic solar panels that combines anti-reflective and self-cleaning properties through a novel nanocomposite system. The coating comprises a matrix of polylactic acid (PLA) with titanium dioxide (TiO2) and silicon dioxide (SiO2) nanoparticles as base components. This nanocomposite system enables the coating material to exhibit both hydrophobic and photocatalytic properties, while maintaining compatibility with glass substrates. The coating achieves its self-cleaning effect through the hydrophobic interaction between the coating material and water droplets, while preventing direct sunlight reflection. This innovative coating material enables enhanced solar energy conversion while maintaining environmental sustainability.

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A glass article coated with aluminum oxide that combines the benefits of solar panels, photovoltaic devices, and thermal energy systems. The coating enhances optical transmission while maintaining the structural integrity of the glass substrate. The coating achieves superior light transmission across the visible and near-infrared spectrum, with maximum transmission values of 99.7% in the 700 nm range and 98% in the 1000 nm range. This coating enables efficient energy conversion through photovoltaic cells and thermal collectors, while maintaining the optical clarity of the glass substrate.

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A low-reflection coated glass with integrated sunlight control functionality that achieves significant reductions in visible light transmission and solar energy absorption. The coating comprises a thin antimony-doped tin dioxide layer with a thickness of 30-100 nm, sandwiched between an antireflection layer and a silicon dioxide layer. The antimony-doped tin dioxide layer achieves a refractive index of 1.65-1.72, enabling optimal light control while maintaining transparency. The coating can be prepared through a single-step process involving thermal processing at 650-660°C.

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Photovoltaic power generation system with selective reflective film that enhances efficiency by selectively reflecting light through a tailored optical coating. The system incorporates a selective reflective film with a Ta2O5 layer and a SiO2 layer, which enables selective transmission of light across the visible spectrum while maintaining high reflectivity in the 400-900nm range. This selective transmission enables efficient conversion of solar energy while minimizing backside radiation and heat generation.

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A method for enhancing solar absorption in visible and near-infrared spectral bands through the creation of a composite anti-reflection coating with a unique porous structure. The coating comprises a titanium/silica composite material with a surface featuring undulating microstructures, which enables multiple reflections and refractions of incident light. This cooperative light trapping effect significantly increases the absorption efficiency of visible and near-infrared radiation compared to conventional anti-reflection coatings.

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Coating for solar panels that enhances power conversion efficiency through optimized light reflection. The coating is applied between the solar panel backplane and EVA adhesive layer, incorporating a combination of silicon-acrylate resins and graphene oxide. This integrated design enables maximum utilization of solar radiation while minimizing reflectivity and refractive index variations across the panel surface. The coating achieves improved power generation efficiency through enhanced light reflection and increased light reflection efficiency, while maintaining durability and self-cleaning properties.

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Photovoltaic power generation system with selective reflection film that enhances energy conversion efficiency and reduces thermal losses. The system employs a reflective film with a cut-off wavelength of 900 nm, which is deposited on a high-borosilicate glass substrate. The reflective film is designed to maximize energy conversion while minimizing thermal losses. The system features a double-sided photovoltaic module with a fixed position relative to the reflective film, ensuring optimal alignment during module movement. The reflective film's transmittance in the 400-900 nm range is optimized for maximum energy conversion while maintaining a high reflectivity in the 900 nm-1800 nm range.

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A double-layer antireflection coating for solar cells that enhances efficiency through a novel combination of bottom and top layers. The coating consists of a bottom layer comprising a fluorinated silica polymer dispersion and a modified mesoporous silica dispersion, which are combined in a 2:1 ratio. The bottom layer is cured to form a thin, uniform layer. The top layer is prepared by mixing the modified mesoporous silica dispersion with a fluorinated silica polymer solution. The top layer is cured to form a thicker, more robust layer. The bottom and top layers are combined to create a wide-band antireflection coating that provides superior light management compared to conventional single-layer coatings.

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Coating for solar modules that combines enhanced anti-soiling properties with improved durability. The coating comprises an inorganic oxide layer with pores that contain a specific type of dense oxide particles. The dense oxide particles have an aspect ratio of at least 2 and a smaller diameter of 3-20 nm, and the coating formulation includes between 0.1-30 wt% aluminium oxide equivalents of aluminium containing compound. The dense oxide particles form a network that provides both anti-soiling and anti-reflective properties, while the aluminium oxide enhances durability. The coating formulation can be applied to substrates like cover glass and then converted into a functional coating.

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A method for enhancing solar cell efficiency through synergistic treatment of existing anti-reflective coatings on glass substrates. The method involves cleaning the existing anti-reflective coating and applying a second, complementary coating to the glass surface. The second coating is specifically designed to enhance light transmission in the 400-800nm range while maintaining the existing anti-reflective properties. This dual-coating approach enables significant improvement in solar cell efficiency without removing the existing coating, addressing the environmental and safety concerns associated with traditional anti-reflective coatings.

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Solar cell with enhanced anti-reflective coating that achieves zero reflection across a broader spectral range. The coating comprises a single-layer or multilayer film of silicon nitride (SiNx) or magnesium fluoride (MgF2), which provides superior anti-reflective properties compared to conventional single-layer silicon nitride coatings. This multilayer design enables the film to achieve optimal antireflection characteristics across the solar spectrum, enabling higher conversion efficiency in solar cells.

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Nanocone-based anti-reflective coatings for solar cells and photodetectors that achieve superior light trapping efficiency through a novel nanostructured surface. The coatings feature silicon nitride nanopillars on a silicon nitride layer, engineered to optimize destructive interference for broad-spectrum anti-reflective performance. By matching the refractive index of the silicon nitride layer to the surrounding medium, the nanocone structure creates an effective medium that enables omni-directional light collection while maintaining absorption characteristics. This approach enables high-efficiency solar cells and photodetectors with reduced reflection and improved optical quality, particularly at oblique angles of incidence.

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A photovoltaic glass reflective film with ultra-high visible light reflectivity for solar panels. The film comprises a glass substrate, a silicon nitride layer, a polysilsesquioxane layer, a methyltrimethoxysilane layer, a magnesium fluoride layer, water, and a silane coupling agent. The silicon nitride layer enhances the film's thermal stability and optical properties, while the polysilsesquioxane layer provides high reflectivity and durability. The methyltrimethoxysilane layer contributes to the film's optical performance, and the magnesium fluoride layer improves the film's thermal resistance. The silane coupling agent facilitates the assembly process. The film achieves an ultra-high reflectivity of over 85% and high whiteness, enabling improved solar panel efficiency.

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