Nanomaterials for Dye Adsorption in Dye Sensitized Solar Cells

Modified nanocrystalline TiO for dye-sensitized solar cells that enhances their performance through co-doping with silver and La. The modified nanocrystalline TiO2 film is prepared through a novel process involving dropwise addition of La2O3 suspension to silver solution, followed by exposure to simulated solar light. This co-doping enables improved charge carrier mobility and stability in dye-sensitized solar cells, leading to enhanced power conversion efficiency.

Source

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.

Source

Dye-sensitized solar cell photo-anode with high dye adsorption capacity. The dye adsorption capacity can be effectively improved. The preparation method includes ultrafast laser etching, calcining the composite structure, and subjecting the three-dimensional Ti-based TiO to2Calcining the composite structure, and then carrying out dye adsorption, sensitization treatment and post-treatment.

Source

A hybrid thin film for solar cells that combines the photoelectric conversion properties of organic dye materials with the structural stability of heteropoly complexes. The hybrid film comprises a heteropoly complex and crystal violet dye, where the heteropoly complex enhances the dye's light absorption and charge transport capabilities, while the crystal violet dye provides the photosensitizer function. The heteropoly complex/crystal violet hybrid film exhibits superior photoelectric conversion efficiency compared to conventional dye-based solar cells.

Source

A solar cell photoanode that enhances dye-sensitized solar cell (DSSC) performance by incorporating TiO2 nanowires (NWs) into a TiO2 nanoparticle (NP) composite structure. The composite structure combines the high surface area and charge transport capabilities of TiO2 NWs with the photocatalytic activity of TiO2 NP. The TiO2 NWs are prepared through a controlled nucleation and growth process, while the TiO2 NP is synthesized through a sol-gel method. The composite TiO2 NWs/TiO2 NP structure is then incorporated into the DSSC photoanode, where the TiO2 NWs enhance electron collection efficiency while the TiO2 NP enhances photocatalytic activity.

Source

Dye-sensitized solar cell with enhanced photoelectric conversion efficiency through the use of polymer gel electrolyte and specific nanostructured semiconductor layers. The cell employs a polymer gel electrolyte sandwiched between a porous semiconductor layer comprising titanium dioxide nanoparticles and titanium dioxide nanoflowers, which are grown through a controlled hydrothermal process. The nanoflower structure provides increased surface area and light absorption while maintaining stability, while the nanoparticles enhance light absorption and charge transport. The cell architecture enables improved energy conversion through optimized light absorption and charge collection.

Source

Bowl-shaped porous hollow nanoparticles for efficient organic dye removal from wastewater. The nanoparticles achieve superior adsorption properties through their unique spherical structure, which enables faster and more stable adsorption compared to conventional adsorbents. The nanoparticles can be prepared through a modified Stober method, followed by hydrothermal and etching treatments to achieve their characteristic porous structure. The nanoparticles can be regenerated through a simple sol-gel process involving tetraethyl orthosilicate, demonstrating high regeneration efficiency.

Source

One-dimensional ultra-long TiO2 nanorod array prepared by hydrothermal method for dye-sensitized solar cells. The array has uniform height, high surface area, and excellent electron transport properties, enabling efficient charge transport and regeneration in DSSCs. The array is produced through a controlled hydrothermal synthesis process that enables mass production of uniform TiO2 nanorods with high crystallinity and stability.

Source

A method for preparing high-performance photoanodes for dye-sensitized solar cells (DSSCs) by integrating high-burning diatom opal with carbonized biomass. The method involves hydrotherally synthesizing diatom opal with TiO2, followed by carbonization of the resulting material to enhance its photoelectric properties. The carbonized diatom opal, with its unique surface chemistry and high surface area, provides a synergistic interface between TiO2 and carbon, significantly improving charge transport and stability in DSSCs.

Source

A method for preparing a graphene-zinc oxide nanotube array dye-sensitized solar cell photoanode that enhances the photoelectric conversion efficiency of the device. The method involves preparing zinc oxide nanotube arrays through electrochemical deposition, followed by a specific treatment to create a composite material with enhanced chemical bonding between the nanotubes and graphene. The composite material is then coated with a PDMS film and treated with a silyl silane coupling agent, followed by a subsequent treatment with a carboxylated graphite oxide solution. This composite material provides improved electron mobility and stability, enabling enhanced photoelectric conversion efficiency in dye-sensitized solar cells.

Source

Flexible-based dye-sensitized solar cells with enhanced photoelectric conversion efficiency through a novel electrode architecture. The cells employ a transparent conductive nanowire mesh film as both the electrode and carrier layer, eliminating traditional electrode separation. This mesh structure enables direct electron transfer between the semiconductor and photosensitizer layers, significantly reducing recombination losses. The mesh film is fabricated through electrostatic adsorption self-assembly on a transparent substrate, providing a flexible and durable electrode that can be easily integrated into flexible solar cells.

Source

A dye-sensitized solar cell that achieves higher photoelectric conversion efficiency through a novel metallic nano-particle layer. The cell comprises an electrode, a semiconductor layer with dye molecules, a metallic nano-particle layer on a side of the semiconductor layer, and a counter electrode on a side of the metallic nano-particle layer. The metallic nano-particle layer is formed by ink-jet printing, vacuum evaporation, or micro-contact printing on a side of the semiconductor layer away from the electrode. This layer enhances charge transfer efficiency by exploiting the plasmon effect of metallic nano-particles, which significantly widens the linear absorption spectrum of the dye molecules and improves charge transfer from the dye molecules to the semiconductor layer.

Source

Dye-sensitized solar cells with improved electron mobility and dye adsorption efficiency, achieved through a novel photoelectrode preparation method. The method involves creating a nitrogen-doped titanium oxide (TiO2) photoelectrode with graphene oxide incorporated between its grains. This TiO2-NTx-TiO2 composite exhibits enhanced electron mobility and dye adsorption capabilities compared to conventional TiO2-based photoelectrodes. The composite photoelectrode is prepared through a specific reaction sequence involving TiO2 precursor, nitrogen precursor, graphene oxide, and ultrasonic treatment. The resulting photoelectrode exhibits improved light conversion efficiency and charge transport characteristics, enabling higher power output from dye-sensitized solar cells.

Source

Method for preparing a photoanode of a dye-sensitized solar cell with enhanced light absorption and electron transfer efficiency. The method involves creating a graded TiO2 photoanode film with a nanostructured surface that incorporates silver nanoparticles. The nanostructured surface enhances light absorption and electron transfer through surface plasmon resonance effects, leading to improved photovoltaic performance compared to conventional TiO2 photoanodes.

Source

A method for improving the stability of dye-sensitized solar cells by modifying the titanium dioxide photoanode surface through controlled nanowire synthesis. The method involves hydrothermal synthesis of titanium dioxide nanowire arrays, followed by a surface modification process where the nanowire arrays are treated with a dye molecule. The nanowires form a uniform protective layer that prevents dye desorption from the titanium dioxide surface, thereby enhancing the stability of the photoanode.

Source

A method for removing organic synthetic dyes and heavy metal cations from wastewater through a novel approach of using semiconductor oxide nanotube-based composite particles. The composite particles are prepared by depositing semiconductor oxide nanotubes onto non-magnetic dust particles, followed by surface sensitization and ion exchange processes. The composite particles exhibit enhanced dye adsorption capacity compared to dust particles, with the dye removal efficiency significantly improved through repeated cycles of ion exchange and photocatalytic decomposition.

Source

A method for enhancing the performance of dye-sensitized solar cells (DSSCs) by improving their light-to-electron conversion efficiency. The method involves preparing a photoanode by depositing a core-shell nanofiber membrane comprising a titanium dioxide (TiO2) core with a metal oxide shell, specifically zinc oxide (ZnO) or magnesium oxide (MgO), onto a transparent conductive glass substrate. The core-shell nanofiber membrane is fabricated through electrospinning, where the metal oxide shell enhances electron conductivity while maintaining the TiO2 core's structural integrity. This novel core-shell architecture enables improved electron injection and transport across the TiO2 surface, thereby enhancing DSSC performance.

Source

A plasmonic core-shell nanostructure for dye-sensitized solar cells that enhances photoelectric conversion efficiency through synergistic effects of surface plasmon resonance and plasmon synergy. The nanostructure comprises a metal nanoparticle core coated with a graphene oxide shell, which enables broad-spectrum light absorption while maintaining thermal and chemical stability. This nanostructure enables increased conversion efficiency in dye-sensitized solar cells by leveraging the unique optical properties of the plasmonic core-shell interface.

Source

A flexible dye-sensitized solar cell nano paper composite photoanode that enables high photoelectric conversion efficiency through improved light absorption and electron transfer. The nano paper consists of a transparent conductive polymer substrate, a TiOx connecting layer, a porous semiconductor layer, a nano-scattering layer, and a supporting substrate. The substrate is prepared using a temperature-controlled polymerization process that maintains lower temperatures than conventional polymer-based solar cells, resulting in enhanced light absorption and electron transfer properties.

Source

Ce-TiO2 composite material for enhanced dye-sensitized solar cell light anode performance. The material combines Ce-TiO2 nanoparticles with a hollow structure, achieving superior light absorption, conductivity, and stability. The Ce-TiO2 nanoparticles enhance dye adsorption and scattering, while the hollow structure reduces crystallinity and maintains structural integrity at high temperatures. This composite material enables improved light absorption and conversion efficiency in dye-sensitized solar cells.

Source