What are Short Single Walled Carbon Nanotubes (SWCNTs)?

Short Single Walled Carbon Nanotubes (SWCNTs) are cylindrical nanostructures composed of a single layer of carbon atoms arranged in a hexagonal lattice. They are known for their exceptional electrical conductivity, high mechanical strength, and unique optical properties, making them ideal for applications in nanotechnology, electronics, and composite materials.

Chemical Properties and CAS Number

• Material: Short Single Walled Carbon Nanotubes (SWCNTs)
• CAS Number: 308068-56-6
• Appearance: Black powder
• Density: ~1.3–1.4 g/cm³
• Diameter: 0.8–2 nm (typically)
• Length: Less than 300 nm
• Electrical Conductivity: High, metallic or semiconducting properties
• Thermal Conductivity: Exceptional, surpassing most conductive materials
• Surface Area: Extremely high for superior reactivity

Applications of Short Single Walled Carbon Nanotubes (SWCNTs)

1. Electronics and Semiconductors

Used in nanoelectronics, transistors, and flexible circuits due to their high electrical conductivity and miniaturization potential.

2. Energy Storage and Batteries

Applied in lithium-ion batteries, supercapacitors, and fuel cells to enhance charge storage and power density.

3. Composite Materials

Integrated into polymer, ceramic, and metal composites to improve mechanical strength, conductivity, and weight reduction.

4. Biomedical and Drug Delivery

Utilized in targeted drug delivery systems, biosensors, and imaging applications due to their biocompatibility.

5. Optical and Sensor Technologies

Used in optical sensors, field emission displays, and thermal imaging due to their high aspect ratio and photoluminescent properties.

Pricing of Short Single Walled Carbon Nanotubes (SWCNTs)

Pricing depends on purity, dispersion quality, and industrial application:

• Standard Grade: Typically ranges from $500 – $2000 per gram
• High-Purity Electronic Grade: Prices range from $2000 – $8000 per gram, optimized for advanced electronics and biomedical applications.

Factors Influencing Pricing

• Purity level (low or high metallic content)
• Functionalization (e.g., -OH, -COOH, amine groups)
• Bulk order volume
• Application in high-tech industries like aerospace and biotechnology

Conclusion

Short Single Walled Carbon Nanotubes (SWCNTs) are one of the most promising nanomaterials, offering superior electrical, thermal, and mechanical properties. Their applications in electronics, energy storage, composites, and biomedical fields make them a crucial component of next-generation technologies.