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Contact Metallization of Vertical Carbon Nanotubes

总结: Researchers at Purdue University have developed a technology that provides both a robust process to synthesize SWNTs reproducibly in vertical channels suitable for device integration and facile means of electrically contacting the vertical carbon nanotubes with nanoscale metallic wires and/or particles without the use of lithographic methods. This method deposits metal directly to the base and tip of vertical carbon nanotubes, which leads to isolated nanoscale electrical contacts of the individual nanotubes. This process is adaptable to address individual carbon nanotubes or networks of nanotubes with a common back contact. Further, this technology has the ability to create nanotube contacts with palladium, which is a highly preferred metal for contacting nanotubes because of the resulting ohmic nature of contact. In addition, the nature of the electrodeposition process changes, causing the deposition within pores to cease or slow significantly.

技术优势: Simultaneously establish source and drain nanoscale electric contacts Annular deposition of electric contacts without lithography

详细技术说明: Timothy FisherNanoscale Transport Research GroupPurdue Mechanical Engineering

*Background: Single-walled carbon nanotubes (SWNT) have application in many electronic and chemical sensing devices. In particular, devices containing electrical contacts with nanotubes have applications in electron emission, circuit design, and chemical and biological sensing. Currently, lithographic techniques are required to establish electrical contacts with nanotubes. These techniques are limited to two-dimensional architecture and generally produce low yields.

*Web Links: Purdue Office of Technology CommercializationPurdueInnovation and EntrepreneurshipTim FisherNanoscale Transport Research GroupPurdue Mechanical Engineering

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