Electrode for Photoelectrocatalysis and Method for Its Preparation

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This invention relates to a novel electrode for photoelectric (photoelectrocatalytic) applications, such as solar cells and water-splitting devices. The electrode consists of a substrate covered by a catalytic layer containing semiconductor particles embedded within an amorphous semiconductor matrix. The particles are carefully controlled for uniform size, and the matrix not only stabilizes and protects the particles but also improves the transport of charge carriers generated by light. The patent also details a cost-effective fabrication method to produce high-quality electrodes using common industrial particles.

Use CasesContent extracted from patent full text and abstract with AI.

• High-efficiency solar cells converting sunlight to electricity
• Photoelectrochemical water splitting to generate hydrogen as a fuel
• Catalytic conversion of CO2 into useful chemicals or synthetic fuels under light
• Photocatalytic degradation of environmental pollutants
• Development of low-cost, large-area photoactive electrodes for renewable energy systems

BenefitsContent extracted from patent full text and abstract with AI.

• Improved charge separation and suppression of recombination losses, resulting in higher photocurrents and voltages
• Uniform, homogeneous electrode layers for consistent and predictable electrochemical performance
• Cost savings from the use of readily available industrial semiconductor powders, thanks to in-process refinement
• Enhanced stability and durability of electrodes due to the protective amorphous matrix
• Scalable and reproducible manufacturing process suitable for industrial adoption
• Potential use of non-toxic and environmentally benign materials

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Patent Abstract

The invention relates to an electrode (10) for photoelectric catalysis, comprising a carrier layer (1), on which a catalytic layer (2) is arranged, which comprises particles (3) composed of a first semiconductor material, to a method for producing said electrode, and to a solar cell having such an electrode. According to the invention the catalytic layer (2) also has a matrix (4) composed of a second semiconductor material, which at least partially surrounds the particles.