: The "Ferrari" of the group. A single sheet of graphene. Best for high-end electronics and sensors.

: Arc-discharge SWCNTs can cost between $75 and $300 per gram depending on purity and length.

: A middle ground, often used for specialized optics or sensitive conductive layers. 2. Choose Your Purity & Grade

The "why" of your purchase depends on which structural story fits your application:

Purity is the primary price driver. High-purity grades (98%+) are extremely expensive and reserved for applications where every defect could disrupt electronic pathways.

: Multi-walled nanotubes are available in bulk (ton quantities) for industrial integration. 3. Select a Trusted Manufacturer