What is Cesium Tungsten Oxide (Cs₀.₃₃WO₃) Nanopowder/Nanoparticles?

Cesium Tungsten Oxide (Cs₀.₃₃WO₃) Nanopowder/Nanoparticles is a functional near-infrared (NIR) shielding material with high transparency, excellent UV blocking ability, and thermal insulation properties. It is widely used in energy-saving glass coatings, transparent conductive films, and smart window applications due to its superior optical and electrical characteristics.

Chemical Properties and CAS Number

• Chemical Formula: Cs₀.₃₃WO₃
• CAS Number: 189619-69-0
• Molecular Weight: Varies based on stoichiometry
• Density: ~7.16 g/cm³
• Particle Size: 20 – 100 nm
• Specific Surface Area: High
• Appearance: Blue-green powder
• Bandgap Energy: ~2.3 – 3.0 eV
• Near-Infrared Absorption: Strong
• Thermal Conductivity: Low

Applications of Cesium Tungsten Oxide (Cs₀.₃₃WO₃) Nanoparticles

1. Energy-Saving Window Films & Glass Coatings

• Used in low-emissivity (Low-E) glass coatings for energy-efficient buildings.
• Provides excellent infrared absorption and reduces heat transmission, improving thermal insulation.

2. Transparent Conductive Films & Displays

• Used in smart windows, flexible electronics, and touchscreens.
• Offers high transparency with electrical conductivity for optical applications.

3. Automotive & Architectural Glass Applications

• Applied in windshields, car windows, and residential glass.
• Blocks harmful UV and infrared radiation while maintaining visible light transmission.

4. Solar Control Coatings & Heat-Blocking Films

• Enhances solar energy control by absorbing near-infrared (NIR) radiation.
• Reduces energy consumption for air conditioning in automotive and building applications.

5. Photocatalysts & Optical Functional Materials

• Utilized in catalytic and electronic devices for light absorption and conversion.
• Applied in photovoltaic cells and sensor technologies.

6. Anti-Fog & Anti-Reflection Coatings

• Used in optical devices, lenses, and protective coatings to improve clarity and performance.

Pricing of Cesium Tungsten Oxide (Cs₀.₃₃WO₃) Nanoparticles

Pricing varies depending on purity, particle size, surface modification, and bulk order volume:

• Lab-Scale Orders: $100 – $800 per gram
• Industrial-Scale Orders: $1,000 – $5,000 per kg
• Custom Surface-Modified Orders: Prices depend on functionalization and dispersion type

Factors Influencing Pricing

• Purity level (>99%)
• Nanoparticle size and dispersion stability
• Surface modification (functionalized vs. non-functionalized)
• Bulk order discounts
• Packaging and international shipping costs

Conclusion

Cesium Tungsten Oxide (Cs₀.₃₃WO₃) Nanoparticles offer advanced infrared shielding, UV protection, and high transparency, making them ideal for smart windows, energy-saving coatings, solar control films, and optical electronics. Due to their unique optical properties and excellent thermal insulation capabilities, they are widely used in automotive, architectural, and display technologies.