Several techniques are employed to create carbon nanotube films, each with its advantages and limitations:
- Vacuum Filtration: This method involves creating a suspension of CNTs in a solvent, which is then filtered through a membrane. The CNTs accumulate on the membrane, forming a film. - Spin Coating: A CNT solution is deposited on a spinning substrate, resulting in a thin, uniform film due to centrifugal force. - Chemical Vapor Deposition (CVD): This technique grows CNTs directly on a substrate by decomposing a carbon-containing gas at high temperatures in the presence of a catalyst.
