What is Cadmium Sulfide (CdS) Nanopowder/Nanoparticles?

Cadmium Sulfide (CdS) Nanopowder/Nanoparticles is a widely used semiconductor material with excellent optoelectronic properties. It is primarily utilized in solar cells, photodetectors, LEDs, and photocatalysts due to its high quantum efficiency and tunable bandgap.

Chemical Properties and CAS Number

• Material: Cadmium Sulfide (CdS)
• CAS Number: 1306-23-6
• Appearance: Yellow to orange powder
• Density: ~4.82 g/cm³
• Melting Point: ~980°C
• Bandgap: ~2.42 eV (at room temperature)
• Solubility: Insoluble in water, soluble in acids
• Crystal Structure: Hexagonal or cubic

Applications of Cadmium Sulfide (CdS) Nanopowder/Nanoparticles

1. Solar Cells (Photovoltaics)

Used as a key component in thin-film solar cells and quantum dot solar panels for efficient energy conversion.

2. Optoelectronics and LEDs

Employed in light-emitting diodes (LEDs), display panels, and laser diodes due to its strong luminescent properties.

3. Photodetectors and Sensors

Enhances the sensitivity of photodetectors used in imaging, optical sensors, and UV detectors.

4. Photocatalysis and Water Splitting

Applied in photocatalytic reactions for environmental remediation, hydrogen production, and pollutant degradation.

5. Pigments and Coatings

Used as a pigment in ceramics, glass, and specialty coatings to achieve vibrant colors and UV resistance.

Pricing of Cadmium Sulfide (CdS) Nanopowder/Nanoparticles

Pricing varies depending on purity, particle size, and supplier:

• Standard Grade: Typically ranges from $100 – $500 per kilogram
• High-Purity Grade: Prices range from $500 – $2,000 per kilogram, especially for optoelectronic and high-tech applications.

Factors Influencing Pricing

• Purity level (99% – 99.99%)
• Quantum dot or bulk material form
• Application in solar cells, LEDs, and photodetectors
• Market demand and production scalability

Conclusion

Cadmium Sulfide (CdS) Nanopowder/Nanoparticles is a highly versatile semiconductor material used in photovoltaic devices, LEDs, sensors, and photocatalytic systems. Its unique optoelectronic characteristics make it a valuable component in modern technology.