Carbon nanotubes are tiny cylindrical structures made of carbon atoms that have unique electrical properties that make them promising for use in electronic devices. However, until now, there has been no efficient way to mass-produce carbon nanotube circuits.
In the new study, the UCLA team used a technique called "directed self-assembly" to create carbon nanotube circuits. In directed self-assembly, a template is used to guide the growth of the nanotubes so that they form the desired circuit patterns.
The team created the template using a process called lithography, which is used to create patterns in materials. They then deposited a layer of carbon nanotubes onto the template and used a chemical vapor deposition process to grow the nanotubes into the desired circuit patterns.
The team was able to create complex circuits using the directed self-assembly technique. They also showed that the circuits were highly conductive and had low levels of defects.
The researchers believe that their new technique could be used to mass-produce carbon nanotube circuits for use in a variety of electronic devices, including computers, smartphones, and tablets.
"Our method provides a scalable path for the manufacturing of carbon nanotube circuits," said Jian-hua Chen, a professor of electrical and computer engineering at UCLA and the senior author of the study. "We believe that this technology could revolutionize the electronics industry."
The research was published in the journal Nature Nanotechnology.
