Improving Electron Transport in Dye Sensitized Solar Cells

A dye-sensitized solar cell with improved thermal stability through a novel monolithic structure that integrates a porous insulating layer between the semiconductor layer and counter electrode. The insulating layer contains the electrolyte solution containing the redox couple and pyrazole-based compound, while the semiconductor layer itself contains the dye. This configuration prevents the pyrazole-based compound from degrading due to heat-induced decomposition, while maintaining the cell's performance characteristics. The insulating layer's precise porosity and particle size control ensure optimal electrolyte distribution and cell stability.

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Dye-sensitized solar cell with enhanced power generation through a novel reflective layer design. The cell features a power generation layer with a thickness of 0.5 μm to 6.5 μm, a reflective layer on at least one surface of the power generation layer, and a second electrode layer on the reflective layer. The reflective layer has a thickness of 0.1 μm to 50 μm and is designed to optimize light absorption while minimizing electrolyte penetration. The cell architecture enables efficient power generation through the selective exposure of the power generation layer to the reflective layer, with the side surfaces of the power generation layer exposed to the reflective layer.

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Fiber dye-sensitized solar cell with high photoelectric conversion efficiency in indoor light environment, comprising vertically grown titanium dioxide nanotube array on a flexible substrate, with titanium dioxide nanoparticles uniformly filling the nanotube gaps and fully adsorbing the dye molecule N719 as the photoanode, and the photoanode is wound with carbon nanotube fibers as the counter electrode.

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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.

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Dye-sensitized solar cells with enhanced light trapping capabilities through a novel porous semiconductor layer. The cells incorporate a transparent conductive substrate, specifically FTO glass, and a titanium dioxide-based porous semiconductor layer. The porous layer, comprising zinc oxide, niobium pentoxide, or bustard trioxide, provides efficient light absorption while maintaining electrical conductivity. This architecture enables improved charge separation and electron-hole transport, thereby enhancing the overall photoelectric conversion efficiency of the solar cells.

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Dye-sensitized solar cell with enhanced electrode structure for improved photoelectric conversion efficiency. The cell features a flexible substrate with integrated conductive and semiconductor layers, where the semiconductor layer is positioned between the conductive layer and the substrate surface. The conductive layer is embedded within the substrate's grooves, creating a conductive path for current collection. The grooves distribute current evenly across the substrate, enhancing current collection efficiency while maintaining structural integrity. The grooves also facilitate dye adsorption and electrolyte penetration through the semiconductor film.

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A photoelectric conversion element and dye-sensitized solar cell that achieve high efficiency, long-wavelength quantum efficiency, and thermal stability through a novel metal complex dye. The dye incorporates a specific six-coordinate structure with bipyridine ligands featuring substituents at the 4-position and a carboxyl group, which enables enhanced light absorption beyond 700 nm. The dye is selectively adsorbed onto semiconductor fine particles with a metal oxide layer, resulting in improved performance characteristics compared to conventional metal complex dyes. The dye-sensitized solar cell achieves conversion efficiency comparable to amorphous silicon while maintaining high external quantum efficiency for long-wavelength light.

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A solar cell design using pulsed laser deposition for efficient dye-sensitized solar cells. The cell features a conductive substrate with a dense titanium dioxide layer, followed by a mesoporous layer and a light-scattering layer. The dense layer is prepared through pulsed laser deposition at 320 mJ laser energy and 4 Hz frequency, achieving a thickness of 1.6 mm. The mesoporous layer enhances light scattering while maintaining structural integrity. The light-scattering layer is then coated with N719 dye sensitizer, OPV-AN-I electrolyte, and a Pt counter electrode. This pulsed laser deposition method enables the production of high-efficiency solar cells with improved light scattering properties.

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Dye-sensitized solar cell photoelectrodes with enhanced light conversion efficiency through improved contact area between dye and electrolyte. The novel photoelectrodes feature TiO2 particles with nanochannel structures formed through ultrasonic spray pyrolysis. These nanochannel pathways facilitate efficient dye transport and electrolyte penetration, thereby increasing the contact area between the dye and electrolyte interfaces. This approach enables improved light absorption and electron transfer efficiency in dye-sensitized solar cells.

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A method for preparing high-efficiency dye-sensitized solar cells through a novel approach that enables uniform dispersion of carbon, silver, iron oxide, and heteropoly acid precursors during microwave-assisted hydrothermal synthesis. The synthesis process ensures consistent particle size distribution and uniform composition, which is critical for achieving optimal photoelectric performance in dye-sensitized solar cells.

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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.

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Dye-sensitized solar cell with enhanced photoelectric conversion efficiency through a novel composite electrode structure. The cell comprises a counter electrode with a platinum layer and a multi-walled carbon nanotube-graphene composite layer, where the composite layer has a high reaction area. This composite layer is formed by acidifying carbon nanotubes and graphene, followed by decane coupling, and then applying the modified material to the platinum layer. The resulting composite counter electrode provides a high surface area for electron transport, while the modified graphene layer enhances charge transport through its porous structure.

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A method for preparing TiO2 NS/graphene composite film dye-sensitized solar cells through a novel approach to enhance the performance of dye-sensitized solar cells. The method involves creating TiO2 NS/graphene composite films by combining nanoscale TiO2 nanoparticles with graphene layers, followed by the deposition of these composite films onto a substrate. This composite film structure combines the high surface area of graphene with the stability and light-absorbing properties of TiO2 nanoparticles, resulting in improved dye-sensitized solar cell performance.

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Metal complex dye for dye-sensitized solar cells that enhances photoelectric conversion efficiency and durability through improved ligand design. The dye incorporates a metal ion with a specific oxidation state, combined with a receptor ligand that forms a stable complex with the metal ion. The receptor ligand is specifically designed to form a stable complex with the metal ion, while the ligand itself is a donor ligand that coordinates with the metal ion through a specific ring structure. This combination enables the dye to achieve high photoelectric conversion efficiency and improved durability compared to conventional metal complex dyes.

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A method for preparing a solar cell photoanode that enhances its efficiency through infrared absorption. The method involves using an infrared dye cascade that selectively absorbs infrared radiation, enabling the conversion of this energy into visible light. The cascade comprises a series of infrared-absorbing dyes that are arranged in a specific sequence to maximize absorption in the infrared region. This cascade is incorporated into the photoanode material, where it absorbs infrared radiation and generates visible light through up-conversion. The infrared absorption enables the conversion of a previously underutilized portion of the solar spectrum, significantly improving the overall efficiency of the solar cell.

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High-efficiency dye-sensitized metal oxide solar cell design that uses a triple metal oxide composition for the photoelectrode layer and a scattering layer. The photoelectrode is made of nanoparticles from a ternary metal oxide system like (1-x)SmxO2, where x is a rare earth dopant concentration. This triplet metal oxide composition allows higher efficiency compared to traditional TiO2 by improving electron transport. The scattering layer of microparticles helps capture more light. The cell structure has two electrodes, a sensitized photoelectrode layer, scattering layer, and electrolyte between them.

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Solid dye-sensitized solar cells and modules that enhance light absorption and carrier generation through optimized nanostructured titanium dioxide particle films. The cells employ a novel hole-transporting material in an organic solvent, with the film thickness of the nano-titanium dioxide particles precisely controlled to achieve optimal light absorption and carrier generation. The cells achieve higher photoelectric conversion efficiency compared to conventional solid dye-sensitized solar cells, while maintaining durability and manufacturing complexity.

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A dye-sensitized solar cell with enhanced photoelectric conversion efficiency through a novel composite counter electrode structure. The cell features a platinum counter electrode with a porous graphene layer, where the graphene is deposited on the platinum surface through an adhesive coating process. The graphene layer creates a three-dimensional network that facilitates electron transport while maintaining the structural integrity of the counter electrode. This design enables efficient electron transfer between the counter electrode and the working electrode, thereby improving the overall solar cell performance.

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A dye-sensitized solar cell with enhanced photoelectric conversion efficiency through a novel counter electrode design. The cell features a composite electrode comprising a platinum layer and a multi-walled carbon nanotube-graphene composite layer, where the graphene composite layer is specifically engineered to enhance electron transport through its porous structure. This design enables improved electron collection and transport between the electrodes, thereby increasing the overall solar cell efficiency.

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Dye-sensitized solar cell with enhanced photocurrent density through a novel counter electrode design. The cell incorporates a composite counter electrode featuring a platinum layer with a porous graphene layer, where the graphene layer is created through a controlled graphene slurry application process. The porous graphene layer provides increased surface area for electron transfer while maintaining structural integrity. This design enables improved electron transport pathways and enhanced photoelectric conversion efficiency compared to conventional counter electrode materials.

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