Improved Electrolytes for Dye Sensitized Solar Cells

Electrolyte for dye-sensitized solar cells that combines high ionic conductivity with improved durability. The electrolyte is prepared by injecting a liquid electrolyte into a hydrogel film that has been dried to remove moisture. The hydrogel serves as a matrix that maintains the electrolyte's structure while preventing leakage during manufacturing. The resulting electrolyte has a thickness of 500-600 μm, enabling efficient dye-sensitized solar cell performance.

Source

A dye-sensitized solar cell with enhanced performance through the incorporation of novel additives. The solar cell comprises a photoanode, a counter electrode, an electrolyte, and an assembly of the battery. The photoanode and counter electrode are prepared through conventional methods, while the electrolyte is formulated with specific additives that enhance open-circuit voltage and short-circuit current density. The assembly is completed by integrating the photoanode, counter electrode, and electrolyte into a functional solar cell.

Source

A quasi-solid electrolyte for dye-sensitized solar cells that combines the benefits of both solid and liquid electrolytes. The quasi-solid electrolyte comprises an amino-modified fullerene, diethyl ether, and 6-deoxy-6-iodo-1,2:3,4-di-o-isopropylidene-ad galactose pyranose in a specific mass ratio. This composition provides high mobility of the liquid electrolyte while maintaining long-term stability, enabling efficient and reliable dye-sensitized solar cells.

Source

Electrolyte for dye-sensitized solar cells that combines high ionic conductivity with low leakage properties. The electrolyte comprises a hydrogel membrane impregnated with iodide ions, which is prepared through a controlled polymerization process. The hydrogel membrane is formed by dissolving a water-soluble polymer and crosslinking agent in water, and then permeating iodide ions into the hydrogel structure. This results in a solid electrolyte that maintains high ionic conductivity while preventing leakage through the hydrogel membrane.

Source

Dye-sensitized solar cell with enhanced light resistance and thermal stability. The cell features an electrolyte layer containing an iodide salt of alkylimidazolium, a solvent containing triethylene glycol monomethyl ether, and an ultraviolet absorbing layer on at least one electrode. The electrolyte layer maintains high initial photoelectric conversion efficiency while the ultraviolet absorbing layer provides superior light resistance and heat management. The cell achieves these benefits through optimized electrolyte composition and electrode design, particularly when using triethylene glycol monomethyl ether as the solvent.

Source

Electrolyte for a solar cell that improves the performance of the solar cell, and improves the permeability and stability at the same time for use in a sensitized solar cell. The electrolyte composition includes an organic solvent, an ionic liquid represented by the following formula, and an oxidation-reduction derivative.

Source

Electrolyte composition for dye-sensitized solar cells with enhanced light transmission properties. The composition comprises iodine, a sulfur compound (such as a thiol or sulfide), and a basic nitrogen compound (such as an amine). The composition achieves high light transmission (up to 90%) at 400 nm with minimal absorption in the visible spectrum, enabling efficient utilization of solar energy.

Source

A dye-sensitized solar cell (DSSC) with improved performance under normal indoor lighting conditions. The cell incorporates a novel non-porous hole-blocking layer between the TiO2 photoanode and dye layer, which significantly enhances electron transfer efficiency. The blocking layer is composed of titanium alkoxides, specifically polymeric titanium alkoxides, and can be applied using conventional printing techniques. This approach enables the cell to achieve higher power conversion efficiency while maintaining environmental sustainability compared to conventional DSSC designs.

Source

A semi-solid electrolyte for dye-sensitized solar cells that enables direct printing onto substrates while maintaining high ionic conductivity. The electrolyte comprises an iodine-based non-volatile liquid electrolyte and inorganic nanoparticles, with the nanoparticles incorporated in a weight ratio of 0.01 to 0.03 compared to the succinonitrile. The semi-solid electrolyte is formed in a printable form through a process that combines printing and roll-to-roll manufacturing techniques. This enables the creation of solar cells with direct printing capabilities, eliminating the need for separate melting steps. The electrolyte maintains its ionic conductivity even at room temperature, making it suitable for high-volume production applications.

Source

Gel electrolyte for dye-sensitized solar cells that enhances stability and photoelectric conversion efficiency. The electrolyte comprises tetracyanoethylene, 1-allyl-3-vinylimidazole salt, dodecylbenzenesulfonate, azobisisobutyronitrile, thermotropic liquid crystal polymer, hexamethylenetetramine ionic liquid, 2,4,6-tricyano-1,3,5-triazine, iodine, and additives. The electrolyte achieves improved stability through its unique composition, which balances conductivity, ionic mobility, and thermal stability.

Source

A photosensitive dye solar cell with improved stability and performance through the use of a novel electrolyte system. The electrolyte comprises a porous polymer matrix with a molecular weight above 2000, combined with ionic liquids and lithium salts, specifically LiClO4. This electrolyte enables enhanced durability and stability in dye-sensitized solar cells by addressing traditional electrolyte issues such as iodine degradation and solvent volatility. The electrolyte is prepared through a vacuum drying process followed by removal of the organic solvent, resulting in a stable and reliable electrolyte for the solar cell.

Source

Electrolyte for dye-sensitized solar cells that enhances stability and performance through the use of a novel combination of iodine sources and a low-viscosity ionic liquid. The electrolyte comprises an iodine source, a polyionic liquid, a porous polymer, and a low-viscosity ionic liquid with a viscosity of 150-350 mPa·S. This unique combination addresses the traditional challenges of iodine-based dye-sensitized solar cells, including stability issues and solvent evaporation problems, while maintaining high power conversion efficiency and long cycle life.

Source

A dye-sensitized solar cell with enhanced performance through a novel polymer/g graphene composite electrolyte. The cell incorporates a polymer matrix containing graphene flakes, where the graphene is dispersed within the polymer matrix through an in-situ gelation process. This approach enables the creation of a solid electrolyte that maintains superior conductivity and ion diffusion properties compared to conventional liquid electrolytes, while maintaining the benefits of polymer-based solid electrolytes. The polymer/g graphene composite electrolyte enables efficient hole transport, maintains high photoelectric conversion efficiency, and offers improved durability compared to conventional liquid electrolytes.

Source

Solid electrolyte for dye-sensitized solar cells that enhances photoelectric conversion efficiency through improved conductivity and stability. The solid electrolyte achieves this by incorporating a high-performance solid electrolyte material with enhanced thermal stability and non-leakage properties. This enables the creation of high-efficiency dye-sensitized solar cells with improved cycle life and reduced degradation.

Source

Organic dye-sensitized solar cell with improved performance and cost-effectiveness. The cell comprises an organic dye-sensitized photoanode, a composite counter electrode, and a gel electrolyte. The counter electrode is fabricated using a conductive polymer matrix, which enhances its electrical conductivity and catalytic activity. The organic dye-sensitized photoanode and gel electrolyte are integrated between the counter electrode layers, enabling efficient electron transfer and improved light absorption. The counter electrode is fabricated through a conductive polymer matrix, which provides superior electrical conductivity and catalytic activity compared to traditional platinum-based counter electrodes. This design enables the production of high-performance organic dye-sensitized solar cells with reduced material costs and environmental impact.

Source

Polymer electrolyte for dye-sensitized solar thin film batteries that enhances performance through novel lithium salt fillers. The electrolyte combines a porous polymer matrix with lithium salt fillers, where the lithium salt enhances charge transport while maintaining structural integrity. This design enables improved power density and stability in dye-sensitized solar cells.

Source

Gel electrolyte for dye-sensitized solar cells that enhances photoelectric conversion efficiency through improved contact between the electrolyte and the porous TiO2 electrode. The gel electrolyte comprises a polymer matrix with a specific cross-linking structure that enables enhanced ionic conductivity while maintaining sufficient mechanical stability. The gel electrolyte is prepared through a controlled cross-linking process that balances electrical conductivity and mechanical strength, allowing for efficient electron transport between the electrolyte and the TiO2 electrode.

Source

Dye-sensitized solar cell quasi-solid electrolyte with enhanced performance through improved ionic conductivity and stability. The quasi-solid electrolyte comprises a combination of ionic liquid and polymer matrix components, with specific weight percentages of ionic liquid (IL) and polymer matrix. The IL enhances conductivity while the polymer matrix provides mechanical stability and dimensional flexibility. This composition enables the quasi-solid electrolyte to achieve higher photoelectric conversion efficiency, improved cycle life, and reduced environmental impact compared to conventional solid electrolytes.

Source

Room-temperature ionic liquid electrolyte for dye-sensitized solar cells that addresses the challenges of conventional electrolytes. The electrolyte combines an ionic liquid with a high-temperature stable electrolyte, such as lanthanum, to create a binary ionic liquid solution. This solution enables high-temperature stability and conductivity while maintaining the excellent properties of traditional electrolytes. The binary ionic liquid solution is prepared through a single-step mixing process that eliminates the need for separate ionic liquids. The resulting electrolyte solution can be used directly in dye-sensitized solar cells, offering improved durability and stability compared to conventional electrolytes.

Source

Electrolyte for plasmonic-enhanced dye-sensitized solar cells (DSSCs) that provides corrosion protection for plasmonic structures while enhancing solar cell efficiency. The electrolyte comprises ions of a plasmon-supporting metal, particularly gold(I) diiodide anions, in addition to an organic solvent. The metal ions form a protective barrier against corrosion of the plasmonic structures when deposited on the working electrode, while maintaining the plasmonic-enhanced dye-sensitized solar cell performance.

Source

Electrolyte for dye-sensitized solar cells that enhances heat resistance through the use of a novel organic salt compound with a thiocyanate anion coordinated to a metal complex. The electrolyte contains the compound, which is combined with a lamellar clay mineral to create a solid electrolyte. The thiocyanate anion in the compound forms a stable coordination bond with the metal complex in the dye, preventing the release of the thiocyanate ion during thermal treatment. This results in improved thermal stability and reduced degradation of the solar cell.

Source

A dye-sensitized solar cell that achieves long-term stability through a novel electrolyte composition. The cell comprises a semiconductor electrode containing a semiconductor and a dye, a counter electrode facing the semiconductor electrode, and an electrolyte layer provided between the conductor electrode and the counter electrode. The electrolyte layer contains a nitroxyl radical compound and a sulfone compound represented by the formula (1). This composition enables the electrolyte to maintain its charge transport properties while preventing reverse electron transfer reactions with the semiconductor, thereby enhancing the cell's stability over extended periods.

Source

Dye-sensitized solar cell with a polymer/graphene composite gel electrolyte that enables efficient and uniform filling of the electrolyte gap between electrodes. The cell incorporates a polymer particle layer on the counter electrode and graphene flakes on the polymer particle layer, which are simultaneously dispersed in the polymer matrix during electrolyte injection. This in-situ gelation process forms a polymer matrix while dispersing graphene flakes, allowing complete filling of the gap without the need for conventional ex-situ preparation methods. The resulting composite gel electrolyte exhibits improved conductivity and uniformity compared to conventional polymer-based electrolytes.

Source

Electrolyte composition for dye-sensitized solar cells that enables efficient energy conversion through enhanced light absorption. The composition comprises a window material that transmits sunlight, a nano-metal oxide photoelectrode formed on the window surface, and a photosensitive dye adsorbed onto the oxide surface. The composition incorporates iodine and nickel nanoparticles into the electrolyte, which enables selective absorption of light in the 500-600 nm range. This selective absorption enables efficient energy conversion through fluorescence resonance energy transfer (FRET) and surface plasmon resonance (SPR) phenomena, while the window material allows direct sunlight transmission.

Source

Electrolyte for dye-sensitized solar cells that enhances photoelectric conversion efficiency and light resistance. The electrolyte contains a halogen, halide salt, imidazole compound, and silver ions, with the halogen concentration higher than the silver ion concentration. This composition enables effective suppression of silver halide precipitation and silver deposition around the oxide semiconductor surface, while maintaining high silver ion concentrations necessary for redox reactions. The electrolyte's composition enables efficient suppression of short circuits between electrodes, resulting in improved photoelectric conversion characteristics and light resistance.

Source

Electrolytes and dye-sensitized solar cells that enhance durability through a novel redox pair. The invention introduces a pyrrole-based redox compound that selectively replaces the pyridine ligand in Co(II) complexes, thereby reducing the thermal degradation of the redox pair. This compound forms a stable complex with the Co(II) center, enabling improved stability against temperature-induced degradation while maintaining the redox pair's activity. The compound is incorporated into the electrolyte solution to enhance the performance of dye-sensitized solar cells.

Source

Electrolyte for dye-sensitized solar cells that prevents solvent evaporation during manufacturing while maintaining photoelectric conversion efficiency. The electrolyte combines a solvent with a polymer that forms a solution with a viscosity range of 1.3-40 Pa·S. The polymer can be one of several polymers such as polyacrylonitrile, polyvinyl acetate, poly(acrylonitrile-co-vinyl acetate), or a combination of poly(ethylene oxide) and polyvinylidene fluoride. The polymer polymerizes with the solvent to form a stable electrolyte solution that maintains the dye adsorbed in the working electrode during the manufacturing process, preventing desorption and maintaining the solar cell's stability.

Source

Electrolyte for dye-sensitized solar cells that enhances photoelectric conversion efficiency through a redox pair of halogen and halide salt. The electrolyte contains a halogen and a halide salt that form a redox pair with the same halogen atom, where the molecular weight of the halide salt is between 0.67 and 1.67 times the molecular weight of the first imidazole compound. This specific composition enables improved charge transfer and electron mobility in the solar cell, leading to enhanced photoelectric conversion.

Source

A photoelectric conversion element and dye-sensitized solar cell that achieves enhanced photoelectric conversion efficiency and durability through a novel metal complex dye. The dye incorporates a tridentate ligand with an aromatic ring at the end, where at least one bidentate or tridentate ligand is coordinated to a metal ion. This ligand structure enables improved charge transport properties and stability, while maintaining the photoelectric conversion efficiency characteristic of conventional metal complex dyes. The dye is combined with a semiconductor layer that forms a thin film, enabling high-performance solar cells with reduced thickness.

Source

Electrolytic solution for dye-sensitized solar cells with improved performance under low light conditions. The solution contains iodine and has a concentration of 5 mmol/L or less. The solution is used as a gap medium between the photoelectrode and counter electrode, where the iodine concentration remains below 0.005 mol/L. This solution enables efficient dye adsorption on the porous oxide semiconductor layer while maintaining the necessary iodine concentration for optimal solar cell performance.

Source

Electrolytic solution for dye-sensitized solar cells that enhances durability and conversion efficiency through a high-boiling-point solvent. The solution contains a redox electrolyte, a basic additive, and a solvent with a boiling point significantly higher than conventional nitrile solvents. The basic additive enhances conversion efficiency while maintaining high stability, particularly in high-temperature applications. The solution's unique properties enable improved performance characteristics compared to conventional organic solvents.

Source

Dye-sensitized solar cells that achieve high photoelectric conversion efficiency in low-light conditions through a novel metal complex dye. The dye, comprising a ruthenium complex with a specific structure featuring an amino group bonded to a bipyridine ligand, exhibits enhanced photoelectric performance in both high and low-light environments. This is achieved through its unique structure that enables efficient π-π stacking interactions between dye molecules and semiconductor surfaces, while maintaining optimal water content in the electrolyte solution. The dye's performance is evaluated through specific evaluation criteria, with acceptable levels of current density (Jsc) and conversion efficiency (A) in both high and low-light conditions.

Source

A dye-sensitized solar cell with enhanced stability through a novel gel-type polymer electrolyte. The cell incorporates a polymer electrolyte with a blocked curing agent that prevents premature degradation during the curing process. The polymer electrolyte is formed between the negative and positive electrodes, with the curing agent cross-linking the polymer chains to create a stable gel-like structure. This cured polymer layer provides improved long-term stability compared to conventional liquid electrolytes, while maintaining the same photoelectric conversion efficiency as liquid electrolytes.

Source

A colloidal electrolyte for dye-sensitized solar cells that enhances photoelectric conversion efficiency through improved stability. The electrolyte composition comprises a blend of polyvinyl acetate, benzimidazole derivatives, iodide, iodine, ionic liquid, and 3-methoxypropionitrile. The benzimidazole derivatives, particularly benzimidazole, play a critical role in preventing dark current and increasing open circuit voltage while maintaining stability. This composition enables high-efficiency dye-sensitized solar cells with improved performance characteristics compared to conventional electrolytes.

Source

Electrolyte for dye-sensitized solar cells that achieves high energy conversion efficiency even at low light intensities. The electrolyte contains a ruthenium-based metal organic complex as a redox shuttle material, combined with a specific concentration of the complex and a solvent. The complex enables efficient electron transfer between the dye and counter electrode, while the solvent facilitates the complex's dissolution and stability. The optimized composition and concentration of the ruthenium complex, along with the solvent, enable the electrolyte to maintain high energy conversion efficiency across a wide range of light intensities, from low to high illumination.

Source

A colloidal electrolyte formulation for dye-sensitized solar cells that improves stability and performance by incorporating a cross-linking agent. The formulation comprises a methyl methacrylate copolymer in an acetonitrile or 3-methoxypropionitrile solvent, with specific concentrations of key components. The copolymer cross-links the liquid electrolyte, enhancing its stability and preventing solvent evaporation during cell operation. The formulation enables high-performance dye-sensitized solar cells with improved durability and component efficiency compared to conventional liquid electrolyte formulations.

Source

A dye-sensitized solar cell that overcomes durability issues in liquid electrolyte-based solar cells by using a solid electrolyte containing a fluorinated resin with a carboxyl group and a Lewis base. The solid electrolyte, comprising a fluorinated resin with a carboxyl group and a Lewis base, provides enhanced light resistance compared to liquid electrolytes. The fluorinated resin contains a carboxyl group and a Lewis base, which enables high concentrations of redox species like iodine and iodide. The solid electrolyte maintains its structure even under UV exposure, enabling practical solar cell operation.

Source

Flexible film-type polymer electrolyte for dye-sensitized solar cells that enables mass production of large-area solar cells through roll-to-roll processing. The electrolyte comprises a high-boiling-point solvent, a porous polymer substrate, a filling polymer with ion-exchange groups, an iodine salt, and additives. The solvent is selected from methoxypropionitrile, acetonitrile, valeronitrile, dimethyl sulfoxide, and dimethylacetamide, with a specific ratio of 7:2:1. The filling polymer contains quaternary ammonium, pyridinium, or pyrrolidinium groups, while the iodine salt enhances performance. The electrolyte's unique combination enables continuous roll-to-roll production of flexible solar cells with high efficiency and durability.

Source

Electrolyte for low-illuminance dye-sensitized solar cells that maintains high power output under low light conditions and suppresses high-power output under high light conditions. The electrolyte contains a halide salt that forms an oxidation-reduction pair with silver, with a concentration ratio of silver halide to halide of 1 × 10^-5 or greater. This composition prevents the formation of silver precipitate that would otherwise reduce power output under high light conditions. The electrolyte maintains its performance under both low and high light conditions, enabling efficient conversion of low-intensity light into electricity.

Source

A polymer electrolyte composition for dye-sensitized solar cells that enhances performance through a novel gel-type polymer electrolyte. The composition comprises a poly(alkylene carbonate) matrix polymer, a redox derivative, and ceramic particles. The ceramic particles, specifically selected from materials like Al203, Si02, Ti02, Sn02, Ce02, Zr02, BaTi03, and zeolites, are added in a controlled amount (2-20% by weight) to the polymer matrix. This addition improves the electrolyte's ionic conductivity, scattering performance, and mechanical stability while maintaining its gel-like structure. The ceramic particles enhance the electrolyte's mechanical properties, while the redox derivative maintains the cell's redox potential. The resulting electrolyte exhibits superior performance characteristics compared to conventional liquid electrolytes, including enhanced stability, reduced leakage, and improved conversion efficiency.

Source

Additive for electrolyte compositions in dye-sensitized solar cells that enhances open-circuit voltage while maintaining high short-circuit current density. The additive contains a pyridine derivative with an alkylsilyl group at the 4-position of the pyridine ring. This specific structure enables the additive to selectively suppress charge recombination while maintaining the necessary redox properties for efficient electron transfer in the solar cell.

Source

Dye-sensitized solar cells with enhanced photoelectric conversion efficiency achieved through the use of a halogen-based redox electrolyte. The electrolyte contains a halogen compound like iodine or bromine, which acts as a redox pair with the dye sensitizer. The halogen compound is dissolved in a chain sulfone solvent, providing a stable and efficient redox environment for the dye-sensitized solar cell. The halogen compound enhances the redox potential of the electrolyte, enabling long-term photoelectric performance while maintaining high efficiency.

Source

Ionic liquid gel electrolyte for dye-sensitized solar cells that provides long-term stability and prevents leakage through reversible phase transitions. The electrolyte consists of an alkyl-substituted imidazole-based solvent, a gelling agent, and an iodine-salt solution, with specific concentration ranges for iodine, lithium, potassium, and pyridine. The gelling agent forms a flexible, reversible gel structure when heated, while the solvent maintains its liquid state at room temperature. This unique combination enables the electrolyte to maintain its electrochemical properties while preventing the degradation associated with conventional ionic liquid electrolytes.

Source

An electrolyte for dye-sensitized solar cells that improves photoelectric conversion efficiency by enhancing the balance between redox pair formation and leakage current suppression. The electrolyte contains a halogen-based redox pair and a specific imidazole compound with a controlled concentration ratio. The imidazole compound, when present in the electrolyte, effectively buffers the leakage current effect of the halogen-based redox pair, leading to improved photoelectric conversion characteristics.

Source

An electrolyte for dye-sensitized solar cells that maintains performance and durability in extreme vehicle operating conditions while enhancing efficiency. The electrolyte comprises a nonvolatile ionic liquid and a low viscosity liquid solvent with a viscosity of 10 cp or less. The solvent is added in a concentration range of 1-10 wt % to the ionic liquid, which contains an imidazolium or pyridinium base. This composition provides improved mobility of redox species while maintaining the electrolyte's stability and flowability in vehicle environments.

Source

A dye-sensitized solar cell electrolyte that combines the high photoelectric conversion efficiency of conventional liquid electrolytes with improved long-term stability. The electrolyte composition comprises a nitrile-based solvent and a dimethylacetamide-based solvent, with a specific ratio of 6:4 to 8:2. The solvent mixture exhibits a viscosity of less than 0.8 cP, a dielectric constant of 35 or less, and a donor number of 2 or less. The composition maintains high ionic conductivity while preventing dye degradation through controlled solvent properties.

Source

Electrolyte for dye-sensitized solar cells that enables enhanced stability and efficiency through a novel multi-redox system approach. The electrolyte combines an organic solvent, a metal anion compound with a multi-redox system, and a quaternary ammonium salt compound. The multi-redox system enables four redox reactions while generating multi-ions, allowing the electrolyte to achieve a redox potential that can be electrochemically adjusted to optimize the solar cell's open voltage. The electrolyte also incorporates an additive of guanidine thiocyanate and t-butylpyridine.

Source

A method for preparing an electrolyte formulation containing a ferroin compound, which is an iron/organic complex derivative, and a dye-sensitized solar cell using the same. The ferroin compound is used as an electrolyte in a dye-sensitized solar cell, where it enables photoelectrochemical conversion through its oxidation-reduction properties. The method involves synthesizing the ferroin compound and its oxidation-reduction derivatives, incorporating them into a dye-sensitized solar cell, and optimizing the formulation through the addition of specific additives and solvents. The ferroin compound provides enhanced stability and open-circuit voltage compared to conventional iodine-based electrolytes, while the optimized formulation enables long-term device performance.

Source

Transparent ion liquid for dye-sensitized solar cells with enhanced conductivity and light absorption. The transparent ion liquid exhibits superior ionic conductivity and molecular length (k) compared to conventional transparent ion liquids, enabling efficient energy conversion in dye-sensitized solar cells. The liquid's high light absorption coefficient enables visible light harvesting, while its transparent nature facilitates integration into various applications such as windows and portable power supplies.

Source

Dye sensitizing solar cell with enhanced photoelectric conversion efficiency and durability. The cell employs a dye sensitizing layer comprising a porous support material with chemical adsorption sites for the dye molecules. This porous structure enables efficient charge transfer between the dye and the semiconductor while maintaining the dye's chemical properties. The porous support layer is fabricated through a process that creates a network of interconnected pores, allowing the dye molecules to adsorb and distribute evenly across the surface. The porous structure also enables controlled dye loading and distribution, which is critical for achieving optimal dye sensitization properties. The porous support layer is integrated into the solar cell architecture as a thin layer between the dye and the semiconductor, providing a durable and efficient interface for charge transfer.

Source